eChapters

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