eChapters

Nerium (Nerium oleander), commonly known as oleander or Kaner, is an evergreen flowering shrub cultivated for loose flowers, landscaping and religious uses. Its flowers are widely used for garlands and temple offerings, while the plant is valued in landscaping because of its drought tolerance and adaptability to poor soils. The chapter presents its origin, distribution, genetics, botanical description and important varieties. It explains climate and soil requirements, propagation, planting, nutrient management, irrigation, pruning and other cultural operations. Pest and disease management is also covered. Special attention is given to harvesting fully open flowers, postharvest handling and shelf-life improvement. The chapter also discusses yield and the plant’s toxic nature.

The cultural history of India is associated with religious believes and any emphasis on arguments dealing with plant-man-God relationship appeals to people even today. This attitude prevails throughout India and many places of worship have continued to preserve in situ biodiversity of specific species of plants.

Cohn (1875) first observed and described a branching filamentous micro-organism in the concretions (coagulated mass) taken from a lacrimal canal, latter identified as Actinomyces israelii. Bollinger first reported the yellow granules in jaw tissues of the cattle in 1877 and established the significance of the organisms as an etiological agent. In 1878, Israel described the first human case. In 1879, Hartz observed the microscopic appearance of granules of Actinomyces infection and suggested the name Actinomyces bovis. Mosselman & Lihnaux (1890) and Wolf &Israel (1891) first isolated the bacteria in artificial laboratory media from lumpy jaw cases of cattle and human Actinomycosis, respectively.

Properties of genus

1.         Morphology :  Actinomyces are gram positive filamentous organisms with branching rods. In artificial media, short bacilli or cocci forms are also observed. During infection, they can produce yellow coloured granules (sulphur granule), commonly found in the pus as ‘opaque speck’ and are visible under naked eye (1-2 mm in diameter). The granules are usually soft and easily broken under light pressure, but they may occasionally be tough or even calcified. They are composed of club shaped bodies, arranged radially with their narrow ends towards the centre. So the organisms are also known as ‘ray fungus’. In the centre of the club, filamentous masses of gram positive organisms with some bacilli or cocci form are found. Together the club like processes and bacterial masses are known as ‘rosette’ (Fig.1). This club is composed of calcium phosphate and inflammatory debris
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ABSTRACT

Pests and diseases cause serious economic losses in yield and quality of many cultivated crops. Detection and assessment of their damage symptoms is very crucial to initiate timely control interventions. The conventional scouting technique adopted for assessment of pest and disease in field crops is very laborious and time consuming. Remote sensing may provide a better means to objectively quantify disease stress than visual methods and it can be used to repeatedly collect sample measurements non-destructively and non-invasively. In this paper we report the changes in the reflectance spectra due to pest and disease incidence in three crops viz., groundnut, castor and rice. Canopy reflectance measurements were made with a hand held multispectral radiometer (MSR 16-R, CropScan Inc) which records incoming radiation and light reflectance with up looking and down looking sensors, respectively in 16 pass bands. Data of percent reflectance at each pass band were processed subsequently using the calibration and correlation constants through a mini computer connected to the sensor. A total of 10 samples were selected for each level of pest/disease. At each sampling, six measurements were recorded and the resulting data were averaged. The reflectance spectra varied for different biotic stresses in the three test crops. Higher absorption in the NIR region between 760-1240 nm was observed for healthy plants compared to the diseased plants in all the three crops tested. The spectral signatures from severely defoliated (by semilooper pest) castor crop showed that the percent reflectance in the visible region between 560-710 nm was higher in the defoliated crop compared to healthy and reverse is true in the NIR region between 810-1100 nm. In case of rice, spectral reflectance in the region between 760-1100 nm could differentiate the healthy and brown plant hopper affected plants. Decrease in reflectance in this region was proportion to the number of hoppers per plant. This could be due to collapse of leaf tissues by hopper damage. The higher reflectance in the visible region (560-710 nm) was observed only when the damage is very severe (hopper burn). Different spectral indices viz., SR (simple ratio), NDVI (normalized difference vegetation index), NPCI (normalized total pigment to chlorophyll index), DWSI (disease water stress index) and WBI (water band index) were compared to distinguish healthy and diseased plants. NDVI was found useful in distinguishing semilooper damaged (defoliated) castor crop from healthy castor. All the indices tested were useful to differentiate the rice plants damaged by sap-sucking pest, BPH at different levels of infestation. Incase of groundnut, the differences in the spectral indices between different disease incidence levels were not significant. Results of the present study demonstrated that by comparing the reflectance spectra generated using ground based high-resolution radiometer, it is possible to distinguish healthy and pest/disease affected crops.

13.1 Introduction

Many changes have occurred in egg production and processing, as well as in the egg itself, over the last 40 years. All of these changes have contributed to the microbial challenges of the egg that we face today. In the past, production traits including egg size, feed conversion and egg output have received the majority of attention in genetic selection of laying hens. Microbial integrity hasn’t been given much attention. Until the 1990s, food safety concerns associated with shell eggs were not considered. Eggs were thought to be pathogen free until they were cracked.

The contribution of dairy sector in the Indian economy has tremendous impact on the country’s GDP. India being the world’s highest milk producing country, dairy industry has a major role in changing the twin problem of the nation that is poverty and unemployment. Dairy sector also involves the under privileged group, especially the dairy farm women. There are many success stories regarding the life changing experiences gained by the farm women, who had taken dairy farming as a means to sustain their livelihood. In the area of gender equality, dairy sector has proved to be a women centric enterprise. Most of the activities pertaining to dairy farming are mostly carried out by the farm women. The dairy farming activities carried out by the farm women are tedious and in major cases their contribution remains unnoticed. They are usually carrying out activities, where most of their energy is drained, resulting in drudgery. Matters related to decision making, their opinion about adopting new technologies, starting an enterprise are not given importance by their family members. This leads to a greater setback in the emergence of success of dairy sector. Therefore, empowerment of farm women in dairy sector is one of the important criteria for the dairy industry to reach a greater height and for overall development of nation.

15.1. Introduction

Meta-analysis is a statistical technique used to combine the results of multiple studies to produce a single, more precise estimate of the effect size of a particular intervention or association. It is a powerful tool in research, particularly in f ields such as medicine, psychology, education, and social sciences, where it is often necessary to synthesize evidence from numerous studies to draw meaningful conclusions. This chapter provides a comprehensive overview of meta-analysis, including its history, methodology, advantages, limitations, and applications.

15.2. Historical Background

The concept of meta-analysis dates back to the early 20th century, but it was not until the 1970s that the term was coined by Gene V. Glass. Glass defined meta-analysis as “the statistical analysis of a large collection of analysis results from individual studies for the purpose of integrating the findings” (Glass, 1976). Since then, meta-analysis has evolved significantly, with advancements in statistical methods and software making it more accessible and robust.

15.3. The Need for Meta-Analysis

15.3.1. Accumulation of Evidence

In many fields, particularly in medicine and psychology, a large number of studies are conducted on the same or similar research questions. However, individual studies may have small sample sizes, leading to low statistical power and inconclusive results. Meta-analysis allows researchers to pool data from multiple studies, increasing the overall sample size and statistical power, thereby providing a more reliable estimate of the effect size.

It is represented by about 100 genera and over 2,200 species which are either annual or perennial, Caryophyllaceae are cosmopolitan in distribution, and mainly found in the north temperate or warm temperate regions of the world. Over 20 genera and about 100 species have so far been reported from India. Some of the larger genera, along with their common names and number of species in parenthesis include Silene (catchfly, 500), Dianthus (carnation, 300), Arenaria (sandwort, 250), Gypsophila (baby’s breath, 125), Stellaria (chickweed, 100), Cerastium (mouse-ear chickweed, 100), Drymaria (50), Spergula (40), Saponaria (30), etc.
Carnation, commonly named as ‘Divine flower’, ‘Clove pink’, and ‘Gilly flower’, is one of the most beautiful and commercially important flower crops of the world. It is excellent for cut flowers, bedding, pots, edging and rock gardens due to its exquisite shape, wide range of colours, light weight and good vase life. In Europe and USA, perpetual carnation is cultivated on large scale in greenhouses for production of cut flowers. In terrain parts of France and Holland, carnation flowers are used for perfume extraction and only light coloured flowers are useful for this purpose.
Description of Family
1. General habit: Mostly annual or perennial herbs, rarely suffrutescent shrubs; arctic forms are reduced and possess caespitose habit.
2. Stem: Herbaceous; rarely with a basal woody part; nodes swollen; branching usually dichotomous but sometimes monopodial.

Nyctanthes, commonly known as Harsingar or Parijata, is an important flowering shrub valued for its fragrant white flowers with orange centres. The flowers have long-standing cultural and religious significance and are traditionally collected for worship and other uses. This chapter presents the botanical identity, origin, distribution, genetics and characteristics of Harsingar. It discusses suitable climate and soil conditions, propagation, planting, nutrient management, irrigation and cultural practices. The chapter also covers pests and diseases affecting the crop and provides information on flower harvesting, particularly the importance of morning collection. Postharvest management, yield and traditional and modern uses of Harsingar flowers are included to support commercial and practical understanding

The information under this section is primarily based on Yordanov (1983). It is almost unanimously accepted that heterosis manifestation in tomato is in the form of the greater vigour, faster growth and development, greater earliness, and productivity, higher resistance to disease and adaptability unfavourable environmental conditions. The first step towards a large scale extension of hybrid tomato cultivars in the practice and proper organization of hybrid seed production took place in Bulgaria. After the second world war tomato heterosis breeding developed quickly in the Netherlands, England France, USA, Japan and other countries. In India, tomato hybrid cultivar on commercial scale was introduced in 1973 by Indo American Hybrid Seed Company.

In previous sections we discussed about the validity and estimation of validity. Now the question is whether the reliable and valid measuring instrument is sufficient condition to ensure the reliable and valid results in actual experiments? What if the measuring instruments are perfectly reliable and valid but the experiment is conducted in less controlled conditions? Can we expect accurate predictions under such conditions? The answer is No.

Abstract

There are enormous food processing industries comprising of grains and oilseeds milling, fruits and vegetables processing, spice grinding and other food processing units in India. Also, there are many seed processing companies in the country, which are engaged in the processing and production of good quality seeds of different crops besides National Seeds Corporation and State Seed Corporations. All industries are using different type of machinery and equipment like cleaner, grader, expeller, milling machines, polishers, dehusking machines, size reduction equipment, different type of grinders, separators, treatment machinery, mixers, pulverizes etc. Besides this equipment, material-handling equipment like conveyor (belt, chain or screw type), elevators, holding bins and other handling equipment are also frequently used in the processing plants. To meet the above requirement many firms are also involved in the manufacturing of these equipment and machinery. Since, most of the seed processing equipment, dhal milling plants, material handling equipment are manufactured by the unorganized sector and hence equipment and machinery fabricated by them are not of very good quality. However, Bureau of Indian Standards has formulated the codes of manufacturing for these equipment and machinery. Seed processing equipment manufactured in India are generally copy of imported processing equipment. The manufacturers do not use materials of good quality. Framework of the machines is very poor. These machines are not also tested for their efficiency, 

Abstract

Multi-commodity flours were prepared by blending rice flour, mung flour and potato flour with wheat flour in ratios of 0:0:0:100, 5:5:5:85, 10:10:10:70 and 15:15:15:55, respectively and packaged in glass jar, high density polyethylene and aluminium flexible packaging for biscuits development. The standardized formulations for biscuit had ingredients as 100 g flour/multi-commodity flour, 45 g sugar, 45 g hydrogenated fat, 1.25 g sodium bicarbonate, 1.25 g baking powder and 1.0 g curry leave powder. The biscuits were baked in convective baking oven at 180 > C for 10-15 min till baked. The well baked biscuits were removed from the oven, cooled to room temperature, packaged and stored under ambient condition. The physical quality (Mass, thickness, diameter, spread ration percent spread and bulk density), of biscuits were analyzed just after preparation under ambient condition. Results were also reported that the spread ratio of multi-commodity flour biscuits increased with decrease in the incorporation of wheat flour in multi-commodity flours. It is clear that spread ratio is mostly influenced by the diameter and thickness of biscuits.

Abstract

Pigeonpea (Cajanus cajan) is an important pulse crop of India and its production is greatly affected by wilt disease. Pigeonpea wilt is a very destructive soil borne disease caused by Fusarium udum. In the experiments, ten treatments were applied viz.; Neem leaf extracts (T₁), Garlic extracts (T₂), Tulsi leaf extracts (T₃), bio-agents Trichoderma viride (T₄), Pseudomonas fluorescens (T₅), Polymer coating (polycot) @ 4 ml diluted in 5 ml of water per kg of seed (T₆), Polymer coaating + Trichoderma viride @ 6.0 g per kg seed (T₇), Polymer + Pseudomonas fluorescens @ 6.0 g per kg seed (T₈), Polymer coating (polycot) 4 ml diluted in 5 ml of water per kg seed + Vitavax power @ 3g per kg seed (T₉) and T₁₀ served as untreated. The observations were recorded six times at 10 days intervals and started from 40 days. These polymer alone @ 4.0ml per kg and in combination with bioagents and fungicides were applied to seed were tested against Fusarium udum. The highest per cent disease control and per cent wilt disease incidence were recorded 96.09 to 64.09 and 2.74 to 33.32, respectively in T₉ (Polymer + Vitavax power @ 3g per kg seed) at 10 days intervals followed by T₈ (Polymer + P. fluorescens) gave 94.46 to 53.06 per cent inhibition, T₇ (92.39 to 52.74) and T₆ (90.97 to 49.73) however, the lowest per cent disease control was noticed as 76.19 to 40.13 per cent in T₁ (Neem leaves extract) amongst all treatments except untreated.

1. INTRODUCTION

Field run seeds obtained from the seed production field posses high moisture and physical contaminants like trash and other inert materials (sand, stones, soil etc.,), diseased and pest damaged seeds, other crop seeds, weed seeds, deteriorated and damaged seeds, off-size and ill filled seeds, plant remnants etc. Seed processing is must to dry the seeds to safe moisture level, remove unwanted and inert materials as detailed above.

Seed qualities such as vigour and viability are improved by certain physical characteristics of the seed i.e., shape, size, large, denser and sound seed, etc. So, if grading is done to obtain a particular range of size, shape, length and density of the seeds, the quality of the lot is upgraded.

Seed processing refers to all the steps necessary for preparation of harvested seed for marketing namely handling, drying, shelling, preconditioning, cleaning, size grading, treating and packaging.

a. Balance Sheets or Net worth Statement

Balance sheet is the list of assets and liabilities owned by a business. It helps to calculate the growth in net worth of the business by calculating the change in assets less the change in liabilities. They represent the financial foundation on which the business is built.

The term ‘balance sheet’ implies some sort of balance as part of the document. That balance represents the relationship between assets on one side, and liabilities on the other, and the basic accounting principle that assets always equal liabilities plus equity. Since it is simply a list of assets owned and debts owed, at a given time, with monetary values attached, we must understand the concepts of assets and liabilities.

Assets are resources owned by or owed to the business such as dairy, equipment, real estate, and notes receivable. Assets are those parts of the business that are owned or controlled. They include any property/resource owned by a person or business e.g. cash, land, buildings, dairy, farm equipment and dairy-related share. Assets are usually listed on the top or on the left hand side of the balance sheet. They are classified in following ways

Key Points

• Patient assessment is only half of the disease diagnosis process.

• Using animal physiological values as a reference point can help measure a patient's health.

• Laboratory results support the patient's evaluation results.

• Patient evaluation findings suggest bodily system involvement.

Introduction

The patient assessment includes the owner's complaint, history, physical examination, and clinical examination of the animals (Fig. 1.1). Proper animal assessment is only part of the illness diagnosis process. Sometimes, evaluation results can be indicative of a medical condition. As a result, at the initial stage, assessing the animal aids in making a confirmation diagnosis. Given its significance, an assessment of the animal must be performed or obtained before concluding the laboratory finding, if available. Assessment can be conducted in several steps, each of which is detailed in the next paragraph. The physiological vital parameters of animals are crucial reference points to conclude the evaluation findings.

Introduction

The term multipurpose trees (MPT) refers to all woody perennials that are grown to provide more than one significant function (shelter shade, land sustainability) of the land use system they implement. More emphasis is given to trees which are indigenous in nature and have the capability to fix atmospheric nitrogen. All trees are said to be multipurpose. The term “multipurpose” as applied to trees for agroforestry refers to their use for more than one service or production function in an agroforestry system (Burley and Wood, 1991).

Multipurpose trees species (MPT) are grown to provide more than one significant crop of function or form. These may include fuel wood, fiber, fodder, flower, fruit, fertilizer (6F) timber, industrial purpose, nitrogen f ixing, soil conservation, soil protection and rehabilitation, shade and nurse trees, medicine, windbreak, shelterbelts, live fences, aesthetic or recreational purpose, shown in Table 16.1.

1. Meteorology is the branch of science that deals with the study of the atmosphere.

2. The scientific study of the interactions between living organisms and their atmospheric environment is called as Biometeorology.

3. 75% of the mass of atmosphere is in the troposphere.

4. The ozone layer present in stratosphere.

5. Exosphere gradually merges into interplanetary space.

6. The concentration of ozone occurs between 20 and 50 Km with the maximum around 25 km which is referred as ozonosphere.

7. Chromospheres - the layer which has the chemical activity predominant between 20 and 100 km.

8. Atmospheric composition varies above 80-100 km which is called as Heterosphere.

9. Heliosphere Molecular oxygen is seen been between 200 and 1000 km.

10. Ionosphere above 10000 km, hydrogen atoms are in an ionized state.

1. Downy Mildew (Green Ear)
Sclerospora graminicola
Diagnostic Symptoms
• Characteristic symptoms of the disease are pale, chlorotic, broad streaks extending from base to tip of leaves.
• At the advancement of disease, the leaf streaks turn brown and the leaves become shredded longitudinally.
• In severe infection, the downy fungal growth can be seen on the upper as well as lower surface of the leaves.
• Infected plants fail to form ear but if formed, they are malformed to green leafy structures.
• Complete ear can be transformed into leafy structure.
• Pathogen transformed all floral parts such as glumes, palea, stamens and pistils into green linear leafy structures of variable lengths and no grains are produced.
• Partial infection of ear head is observed in which some grains are produced and rest of the ear head is converted in to a green ear(Fig-1).