eChapters

Drying by Embedding

A desiccant is simply a substance with a high affinity for water which can be used as a drying agent. Embedding the flowers in a granular, desiccating material is probably the most commonly used method and many consider it the best all around method. Several materials are used as drying agents. All the agents used vary in cost and in the results they produce. It is important to use the correct procedure when covering the flowers so that their form is maintained. Most well known is silica gel, but also clean dry sand can be used. Usually an airtight container is used; the flower heads are placed in the drying mixture face up, and very carefully covered with the mixture. The container must be kept closed during the drying process. After 4-14 days, depending on the thickness of the flower, the flower will be dry.

Pressing Flowers

One of the most popular methods for drying flowers is to put them under pressure, to remove the moisture out while leaving the color of the flowers and structure intact. There are several ways to apply pressure to flowers. The easiest method is placing them in heavy books and allow for drying. Flower presses can also be used. Some guidelines for pressing flowers in the traditional way are explained below:

Various methods are employed to dry flowers and foliage. The method adopted for drying depends largely on the character of the plant, that is to say whether the plant is glabrous, succulent or not succulent, hardy or delicate in nature. The suitable method for drying any given plant has to be studied elaborately. However, the different methods of drying are described broadly in this and consequent chapters.

4.1 Dry Flower Garden

Contrary to popular assumptions, the area required for producing large quantity of dried flower material need not also be large. However, the garden should be planned so as to harvest dry flowers all year round by planting evergreens, deciduous plants, annuals and perennials. Rows of flowering plants should be planted in the dry flower garden. Herbs are easy to grow, and can be planted in pots and window boxes. They are useful in transforming simple cooking into gourmet dishes, while also lending their delicate scents to a room when dried and for use in wreaths, pot pourri and arrangements. Gardens for dry flower production should include a wide selection of weeds, grains, seed-heads and pods. Flowers such as hydrangeas, zinnias, roses, dahlias and sunflowers and a selection of line flowers such as golden rods, statice, gladiolus, larkspur and delphinium can also be grown as these will provide a greater variety of flowers needed in flower arrangements.

3.1 Indian Floriculture Industry

Indian floriculture industry has been shifting from traditional flowers to cut flowers and dry flowers for export purposes. The liberalized economy has given an impetus to the Indian entrepreneurs for establishing export oriented floriculture units under controlled climatic conditions. About 60,000 ha area is under floriculture at present. During nineties, increasing demands for flowers in world market was coupled with production technology available abroad for high quality flowers. This encouraged some entrepreneurs to establish export-oriented units in Hyderabad, especially for the production of long stem rose by importing cultivars and adapting green house technology.

Preserving flowers dates back to earliest recorded history. The first evidence of use of dry flowers was when the bones of a pre historic man discovered in the Middle East were found with a mantle of delicate wild flowers. The pollen grains that remain indicated specific flowers that were used. During ancient times people used to freshen or enliven their rooms with fresh sweet smelling flowers. In the sixteenth century, when the Elizabethan Age was coming to a close, it was considered fashionable to wear silk flowers as part of one’s attire. These days flowers are dried and are versatile in their use. They supply us with food, medicines, ornaments and adornment. Flowers became essential for a fashionable appearance. Each civilization developed its own interpretation of flowers. Pressed flower art became popular in Victorian times. The Japanese use pressed plants and colorful papers to create Oshibana Art.

Flowers attract both young and old alike. They are associated with mankind from the dawn of civilization. These have become an integral part of human life in the modern era.
 
The Indian floriculture industry has been shifting from traditional flowers to cut flowers and dry flowers for export purposes. The liberalized economy has given an impetus to the Indian entrepreneurs for establishing export oriented floriculture units under controlled climatic conditions. About 60,000 hectares, area is under floriculture at present. During nineties, increasing demands for flowers in world market was coupled with production technology available abroad for high quality flowers.

Peer-reviewed academic journals publish a variety of article types, such as “research articles” that report original research, “reviews” of the literature, and “case reports” of a small number of interesting cases. Each article type has its own specific format, and it is important that you use the appropriate one.

Crop growth rate (g m^_-2 day^_-1)

Crop Growth Rate is referred to a whole crop, so you need to consider the area of the ground where crop is present. It is measured as mass increase in crop biomass per unit ground area per unit time.
Equation for that is, CGR= W₂-W₁ / t₁-t₂

Definition of terminologies and concept

Variables: Variables are the characteristic, number or quantity which increases or decreases over time and takes different values in different situations. Variables are those, whose value varies according to the situations. For example, maize yield, Stover, fertilizer, labor, land, pesticides, etc.
 
Dependent variable: Variables whose value is dependent on independent variables. These variables take different values only in response to independent variables. Yield of maize is dependent on amount fertilizer, fertilizer application methods, labor, pesticides etc. So in this case maize yield is dependent variables while amount fertilizer, fertilizer application methods, labor, pesticides are independent variables. However in other situation, maize yield can be used as independent variables also.

The first step in applying the correct rate of fertilizer is calculating crop nutrient requirements. A soil test is the only way to measure how much P₂ O₅ and K₂ O are available in soils, and soil tests are available through several private and public laboratories.

Fertilizer Calculation

To compute the equivalent amount of fertilizer necessary to supply the corresponding amounts of nutrients, the following formula is used:

Hypothesis: A statement about the value of a population parameter developed for the purpose of testing.

Type I and Type II Errors

•    Type I Error: Rejecting the null hypothesis when it should not be rejected.
    •    Therefore accepting the alternative hypothesis (your theory) when you should not.
    •    Probability of a Type I error is called a.
•    Type II Error: Failing to reject the null hypothesis when it should be rejected.
    •    Therefore not accepting the alternative hypothesis (your theory). Opportunity loss.
    •    Probability of a Type I error is called b.
•    Minimizing Type I errors is the main concern of hypothesis testing

Biometric observations

The phenological stages i.e. germination, tasseling, silking, and physiological maturity were recorded from fixed mid three rows of each plot. A particular stage was supposed to be completed while 90% of the observed plant showed the characteristics of that phase and number of days was counted from date of sowing.

Days to emergence (DOE)
 
When the plant shoot pokes through the soil surface. Count the 75% seedlings emerged from at least 50% of the total rows starting from the centre. If 75% of the total expected seedlings emerged, then can be considered as 75% emergence. How the growth stages of maize are distinguished can be observed from the chart below.

Plant diseases are of paramount importance to humans because they damage plants and plant products on which humans depends for food, clothing, furniture, the environment and in many cases the housing. The kinds and amounts of losses caused by plant diseases vary with the plant or plant products, the pathogen, the locality, the environment, the control measures practiced and combination of these factors (Agrios, 2005). Disease is one of the major biotic constraints to reduce crop yield and also deteriorate the quality of product that ultimately reduce the market price.

Introduction
Project title:
Objective (S):

Characteristics of a well-planned experiment
 
•    The treatments, design, management, and data collected should be consistent with the objectives.
•    The experiment should be planned and conducted so that there will be a high probability of measuring differences between treatments with an acceptable degree of precision. 
•    The experiment must be planned and executed to ensure that treatment effects are estimated in an unbiased way.

Formation of a Rectangle

Experiments are usually laid out in square or rectangular plots for data and yield estimation, even though the field may be irregular. The plot is usually placed on the contour, parallel with a road, or in a north-and-south alignment. To mark a plot, construct a right angle and then form a rectangle or square.

Progeny test

Progeny trials involve large numbers of progenies of a family type, such as full-sib, half-sib, or S1 lines. The progenies are evaluated to identify those that may be used to generate synthetic or experimental varieties, or recombined to form an improved population in a recurrent selection program. Progenies in the trials are normally a random sample from the particular population under study. Therefore, data obtained from progeny trials may be used to estimate genetic variances and covariances from which heritability estimates, predicted responses to selection, genetic correlation coefficients, and correlated responses to selection may be obtained. Progeny trials are normally researcher-managed. Progeny trials involve complex field designs, such as balanced incomplete block, lattice, and alpha-lattice. Some examples of lattice are 11 × 11 for 121 progenies, 14 ×14, 16 × 16, etc. Because of the large number of entries, single-row plots with only 2–3 replications in a few environments are used in progeny trials.

Terminology of experiments
    
Evaluation trials are important in plant breeding where the selected lines are compared with standard varieties. In most cases, it will be necessary to make comparable yield trials under field conditions. In such case, the field becomes the experimental unit. In these cases, the field becomes the experimental unit. It requires the use of small plots and adequately replicated.

Germplasm
 
Germplasm of crop may be defined as sum total of hereditary materials, i.e. all alleles of various genes present in a crop species and its wild relatives. The germplasm can be utilized in a breeding programme in following ways:
•    Direct release as a variety
•    It may be subjected to selection for developing a variety
•    It may be used as one of parents in hybridization programmes

Basic principles of breeding hybrid maize
1. Inbreeding
•    Produce a plant which breeds true
•    Produce uniform plants
•    Increase the homozygosity at all or specific loci in the plant genome
•    We know what inbreeding does and I do not propose to spend people’s money to learn how to reduce corn yield-Hopkins

•    A corn plant requires a certain number of growing degree units (GDUs) to reach maturity, regardless of the number of calendar days it takes to accumulate.
•    The relationship of GDU accumulation and corn development, along with utilizing the estimated number of days to reach a certain growth stage, can help predict when important growth stages will occur.
•    Growth stages can be used to help growers make timely applications of herbicides and fungicides. The following information is on corn growth and development from emergence to R6 growth stage.
•    Corn growth stage development can vary according to corn maturity. An early maturing product may produce fewer leaves or develop through growth stages faster than a slower paced late maturing product. This is important to remember when staging corn in relation to accumulated GDUs.

Maize is a tall, determinate annual C₄ plant varying in height from (1-4) meters producing large, narrow, opposing leaves (about a tenth as wide as they are long), borne alternately along the length of a solid stem. The botanical features of various plant parts are as follows: 

Root

Root system of maize consists of seminal roots, crown or coronal or adventitious or fibrous roots and brace, pop or aerial roots. Seminal roots - which develop from radical and persist for long period. Crown roots developing from the lower nodes of stem below ground level which are the effective and active roots of plant and.  Brace or prop roots, produced by lower two nodes. The roots grow very rapidly and almost equally outwards and downwards. Favorable soils may allow corn root growth up to 60 cm laterally and in depth.

1.    Kernel type: Dent, Flint, Floury, Waxy, Sweet and Pop corn 
        •    Dent corn (Zea mays indentata Staurt.)
        •    Flint corn (Zea mays indurate Staurt.)
        •    Pop corn (Zea mays everta Staurt.)
        •    Sweet corn (Zea mays saccharata Staurt.)
        •    Flour/soft corn (Zea mays amylacea Staurt.)
        •    Waxy corn (Zea mays ceatina Kulesh)

There is no cereal in the world which has no immense patentability as in maize and that’s why it is called the “Queen of cereals”. It is the world’s leading cereals crop after rice and wheat. It is one of most important cereals of Nepal. At national level, it stands second position after rice in term of area and fourth in term of production after rice, potato and sugarcane. Maize is the most important cereals crop of hill and mid hills of Nepal. It is grown single as well as mixed cropping with millets or legumes or potato. Maize crop in hill is grown as rainfed farming. Generally, farmer of such region does not apply chemical fertilizer but they fertilize the land with organic manures in three seasons viz., rainy, winter and spring season. In rainy season it grown in upland while in spring season in low land. The winter maize is grown in Terai and inner Terai in low land as well as upland.

9.1  Write True/False

Q.1    In the subject matter of order statistic, the useful beta distribution is written as :

8.1 Write True/False

Q.1    Any linear function of sample observations which is used to estimate the population parameter or parametric function,is called the “Linear estimator.”

7.1  Write True/False

Q.1    All the problem of statistical inference may be considered as the problem of “Decision making in the face of uncertainty.”
Q.2    The problem of point estimation is the problem if deciding which value in the “parameter space” Wq is the true value of the parameter.

6.1  Write True/False

Q.1    A procedure to make an inference about the unknown values of parameters of one or more than one distribution in which the sample size say n is a ramdom variable, is known as “Sequential procedure.”
Q.2    The principal feature of sequential procedure is a ‘Sampling Scheme’ which provides a rule under which one decides at each stage of sampling whether to stop or continue the sampling work.

5.1  Write True/False

Q.1    The null hypothesis H₀ is said to be composite if it does not specify the joint probability of x₁, x₂, ......, x_n completely.
Q.2    We may write null hypothesis as :
    H₀ : θΣ Ωθ_0-

4.1 Write True/False

4.1.1 Preliminaries

Q.1    In selection of a test, one should try to keep the probabilities of both types of error small.
Q.2    Under a non-sequential sampling scheme (i.e. fixed sample size n), it is not possible to minimise both the errors at the same time.

3.1  Write True/False

Q.1    The estimates obtained though various methods of point estimation, in general, do not concide with the true values of the parameters.
Q.2    The statistician is interested in finding an ‘interval’ within which the true value of the parameter θ is expected to lie with certain ‘confidence coefficient’, say (1 – α).

2.1  Write True/False

Q.1    From theoretical point of view, the most general method of estimation is the “Maximum Likelihood Estimation Method.”
Q.2    The method of “maximum Likelihood Estimation” was initially formulated by the statistician named as “C.F. Gauss.”

1.1 Write True/False

Q.1    The process of knowing all the relevant information from the known sample to the unknown population, is known as “Statistical Inference.”
Q.2    An enquier may be completely unknown to some feature of the population but he may want to guess completely about that feature based on a random sample drawn from the population. This type of problem is known as the “Problem of Estimation.”

ABSTRACT

The concept of the Kissan Call Centres-KCCs (Farmers’ Call Centres-FCCs)) was a logical outcome of the Government of India’s (GOI’s) commitment to leverage the ICT for overcoming the constraints of distance and time in providing new generation extension services to the farmers of the country by facilitating their direct virtual contact with the agricultural extension and expert personnel. The study on KCC has shown that farmers in the age group of 29 to 48 years are the biggest user group of KCC helpline. In terms of academic background, farmers with a minimum exposure of six to seven years to formal schooling (86%) seek to utilize the KCC support and relatively inexperienced farmers with less than 10 years of experience are more likely (47.5%) to call the KCC. The scope to enhance awareness and access among women farmers to the KCC helpline is huge as their current levels of participation are negligible. As regards the performance of KCCs, 84% of the farmers who called the KCCs expressed overall satisfaction from the advice provided through the helpline.

ABSTRACT
  
The present study was conducted with 100 internet users in Lahowal CIC and Barbaruah CIC in Dibrugarh district of Assam to critically analyze the various aspects of internet utilization pattern. Results showed that majority (66%) of the respondents were between 18 to 26 years of age and were students (50%). Education qualification of majority of the respondents (32%) was above seventh standard and below graduation and seventy per cent were above graduation and below post graduation and also undergone training in computer.

ABSTRACT

As population explosion continues and the shortage of extension personnel becomes acute, the wisest proposition is to utilize the latest information and communication technology (ICT) to make information available to the common man. The ICT  tools with their recent advancements have become easily available in various forms such a mobile telephone, PDA, WLL phones, FM radio, community radio, television, wireless internet services, webcams, video conferencing facilities etc. Extension agencies need to harness the ICT tools usefully and improve the quality of extension services.

ABSTRACT

Information is basic element in any development activity. It is useful only if it is available, if the users have access to it, in the appropriate form and language. Information in the field of agriculture, to benefit farmers, has to be tailored to local agro-ecological and socio-economic conditions backed up by relevant input supply services and public policies. The impact of information revolution with its powerful information and communication technologies are making the whole universe into a small global village enabling easy access and faster sharing of knowledge among the world communities. Information Communication Technologies have great prospect and wide scope for disseminating information to the people in remote areas with great accuracy and with no loss or distortion of any information. ICTs can empower rural communities and give them ‘a voice’ that permits them to contribute to the development process.

ABSTRACT

Communication is now one of the central issues in developing societies. Knowledge expansion, information technology and technology dissemination are the three very important dimensions of any development system be it agriculture, industry and whatever. Revolutionary changes in communication policies, techniques and strategies are needed in order to make information is a fundamental right to the poor rather than making communication a privilege enjoyed by the rich and powerful. Transfer of agricultural technology generally aims at speedy diffusion of novel agricultural information from the place of invention to the place of adoption. In the current Information and Communication Technology (ICT) era, human dependency on computer and allied modern electronic gadgets for executing day to day activities is inevitable. All fields are being influenced by the interventions of ICT and agriculture is in no way an exception to it.

ABSTRACT

The study was undertaken to assess the effectiveness of ICT-Enabled Village Information Centres (VICs) with special reference to dairy farming in Tamil Nadu. Ex-post-facto research design was followed, wherein 180 users and 90 non-users of VICs constituting 270 dairy farmers covering three ICT-VIC initiatives viz., Tamil Nadu Veterinary and Animal Sciences University (TANUVAS), M.S.Swaminathan Research Foundation (MSSRF) and n-Logue communication in Tamil Nadu were selected using random sampling technique. Data collected through personal interviews were analysed using appropriate statistical tools.

ABSTRACT

The major part of the agriculture in India is Rainfed. The increasing pressure of population on land has resulted into over exploitation of land, water and other ecological resources, resulting in water scarcity, land degradation and rapid depletion of ground water-table. Government of India has adopted watershed management strategy to address these problems, but all existing watershed management programmes are mainly fragmented and governed by different departments. This has resulted in formation of providing better service delivery and governance. In this study an attempt is made to identify the scope of convergence between National Rural Employment Guarantee Act (NREGA) with Integrated Watershed Management Programme (IWMP) for generation of social capital and self-employment in the command area of a watershed using geospatial technology.

ABSTRACT

Probably since the beginning of agriculture, farmers have recognized the value of rows of trees/ shrubs planted in the farm (called as Agroforestry) which offers environmental protection, crop and livestock production and reduce the soil health hazards. The role of agroforestry is immense in the undulating terrains like North East India, rain fed area like Central India or the problem soils in general. Even though research and extension work is on the way to increase the trees out side the forest, the information and knowledge on best tree + crop combination is either scarce or limited to regions in the form of research articles, books or  journals. The recent scope of Information and Communication Technology (ICT) and its applicability due to its easy, fast and any where accessibility have opened the window of opportunity towards the scientific agroforestry and farm forestry developments. One such means of ICT is through the availability of useful databases and websites on agroforestry.

ABSTRACT

The domestic buffalo occupies an important niche in agricultural systems by providing milk, meat and draught power. Indian buffalo population which is about 1/3 of the cattle population contributes more than half of the total milk production of the country.  Several biological and socio-economic problems restricted the efficiency of buffalo production which needs careful and intensive research. Studies pertaining to reproduction are one of the important areas in buffalo research. The reproductive process in buffalo is complex in nature, which differs on many aspects with the cattle. There is a need to undertake separate strategies to understand buffalo reproduction to disseminate the information to the livestock owners and researchers.

ABSTRACT

Veterinarians, appointed in field, rarely get the opportunity to update their knowledge and skills, through trainings or courses, due to their working conditions. More over, they feel isolated and neglected from colleges due to poor interactions. Looking to this need, the courses on Post Mortem Techniques and Diagnosis of Parasitic Diseases in Livestock were developed, based on the Need Assessment survey. The courses were developed on interactive CD ROM with audio, video clips and photographs along with some reading material. The courses were of one credit each and had minimum one face-to-face session. The response by the veterinarians was tremendous and around 210 veterinarians offered for the courses by paying fees. Participants and stakeholders expressed the need for additional courses and accordingly two more courses on surgical techniques in large and small animals were launched which also received good response.

ABSTRACT

A methodology for depiction of Brown Plant Hopper (BPH) pest incidence on rabi rice crop using Remote Sensing (RS) data was attempted. The reflectance and geographically registered RS images of Feb.12, Mar.13, and April 30, 2009  as well as Feb.23 and March 14, 2007 were used to classify the Godavari district for generation of rabi rice crop area map. The rice crop map thus generated was used as an overlaying layer of rice crop mask in GIS to derive other RS based indices described below over this crop mask. Land Surface Temperature (LST) data product for rice growing areas was generated using rice crop mask. Normalised Difference Water Index (NDWI), Temperature Vegetation Dryness Index (TVDI) onices derived from MODIS data and NDWI from AWiFS data were correlated with pest count data for two years 2007 and 2009.

ABSTRACT

Future is the era of ICT (Information Communication Technology) which is equally applicable in the field of Agriculture. Farmers database will be an important part of ICT which is required for smooth functioning of various agricultural activities like Farmer’s Trainings, Demonstrations, Crop monitoring, Support to farmers, implementation of various government schemes etc.  This software records farmers Name, Phone number, Sex, Category (SC/ST/Gen),  Number of dependents, Annual agricultural income, whether fully or partially dependent, Land holding size,  Major crops, Village, Block, Sub-division, Land situation (Plains/ Low Hills/ Mid Hills/ High Hills), Soil Reaction, Soil type, (Highly Acidic/Moderately /acidic/Neutral/Alkaline/Highly Alkaline), NPK status, Irrigation facility and information regarding Cattle. From the above record various reports can be generated according to the needs of the scientific personnel. For example soil scientist will have record of soil pH & NPK status of different farmers across the district. Scientist can filter the database to get farmers of a particular soil type to conduct training;

ABSTRACT

Agricultural growth is a catalyst for broad based economic development in most of the low-income countries. Over the last few decades, the share of agriculture in GDP has steadily declined in India from over 50 per cent in the 1950s to 18.5 per cent in 2006-07. The role of extension personnel in this juncture has become immense and there is a mammoth task ahead in the era of contract farming, organized retailing and market led extension. Information and Communication Technology (ICT) is an umbrella that includes all technologies for the communication of information.  It caters for individualized instruction and the contents could be easily updated and expanded.

ABSTRACT

Mandarin Orange (Citrus reticulata Blanco.), known as ‘Suntala’ to the local populace, is a major cash crop and was once a pride of Darjeeling hills. It is grown in approximately 930 ha with an annual production of 148.224 metric tones and annual turnover of Rs. 25 crores approximately. Since early 1970s, orange orchards in the Darjeeling hills started to be unproductive inflicting huge economic loss showing severe citrus decline. Gradually the malady assumed alarming proportions and threatening the cultivation of the crop. The major causes for the bottleneck of the citrus industry in Darjeeling hills  is  the heavy incidence of insect pests, diseases and nutritional deficiencies.

ABSTRACT

Expert Systems could be incorporated into extension education programmes to assist in solving problems using knowledge gathered from experts. During the process of problem solving, the Expert System becomes a source of educational material for the user. Hypertext may be incorporated into an Expert System as a means of providing the user with additional information. A hypertext approach to system development involves attaching information to specific phrases used in the system. The form of attached information can be textual, graphical or procedural. The methodology of developing expert system consists of two parts viz., developing computer-based Expert System and testing its effectiveness. The first part includes selection of most relevant subject matter area and procedure used in the development of an Expert System. The second part deals with the research design and technique adopted to test the effectiveness of computer-based Expert System versus human expert.

ABSTRACT

Information and Communication Technologies (ICTs) are for everyone and that does not mean for urban or rural communities. Recent developments in the fields of information and communication technology are indeed revolutionary in nature. By definition, Information and Communication Technologies (ICTs) are a diverse set of technological tools and resources to create, disseminate, store, bring value-addition and manage information. Knowledge thereby becomes the fundamental resource for all economic and developmental activities in the knowledge society, of which rural poor form an equal part. The process of synthesis of knowledge possessed across communities with the global pool of knowledge and with the scope for further enrichment provides the genesis for information sharing.