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Objectives of Plant Breeding

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Major Objectives of Plant Breeding Program Plant breeding is an important branch of agricultural science. Its main purpose is to develop new and improved crop varieties. These improved varieties give better yield, better quality, and better resistance against diseases and harmful environmental conditions. A plant breeding program is planned according to the needs of farmers, consumers, industries, and climate. The major objectives of plant breeding are explained below in simple paragraph form. 1. Higher Yield The first and most important objective of plant breeding is to increase crop yield. Food demand is increasing due to rapid population growth, so breeders try to develop varieties that produce more grains, fruits, seeds, or biomass per unit area. High-yielding varieties help farmers earn more profit and improve food security. This is why yield improvement is considered the central objective of every breeding program. 2. Improved Quality Another major objective is to improve t...
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SEC Sem III Biofertilizer

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Fungi Basic Question for Sem 1

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Anatomy Short for sem III

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Common flora used traditionally in agriculture ecosystem

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  Common flora used traditionally in agriculture ecosystem One of most common and important plant used in agricultural operations is Neem (Azadirachta indica). The properties of Neem as insecticide, antifeedant, hormonal, antifungal, antiviral and nematicide properties are well known. These activities are brought out with neem use in the form of leaves, leaf extracts, seeds, cakes, oil and fruit extracts (Lokanadhanet al., 2012). This plant control about 200 species of insects i.e. Aphids, leaf miners, looper, thrips, mealy bugs etc. It kills all chewing and sucking insects, also disrupts their life cycle and sexual behavior (Kaur and Ohri, 2018). Azadirachtin, salannin, and other limonoids present in neem oil inhibit ecdysone 20-monooxygenase, the enzyme responsible for catalyzing the final step in conversion of ecdysone to the active hormone, 20-hydroxyecdysone, which controls the insect metamorphosis process (Campos et al., 2016). In addition to that the neem seed cake also cont...
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MCQ LIFE SCIENCE FOR COMPETITIVE EXAM

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  1. The stain used to visualise motochondria is (a) Fast green            (b) Safranin          (c) Aceto carmine         (d)  Janus green   2.    A common characteristic feature of plant sieve tube cells and most of mammalian erythrocytes is (a) Complete  Absence of mitochondria          (b) Presence of cell wall (c) Presence of haemoglobin                           (d) Complete Absence of nucleus   3.    Regarding the mineral nutrition of plants, which one of the following statements is correct? (a) The availability of iron to plants decrease with the increase of acidity of the soil (b)  The presence of CO2 dissolved in the soil water reduces the sol...
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