植物水关系:水对植物寿命,扩散,渗透,质解,吸收,沟渠,蒸腾,气孔,气孔及其开放和关闭机制的重要性。Micro & macro nutrients: criteria for identification of essentiality of nutrients, roles and deficiency systems of nutrients, mechanism of uptake of nutrients, mechanism of food transport Growth and development: Definitions, phases of growth, growth curve, growth hormones(auxins, gibberlins, cytokinins, abscisic acid, ethylene) Unit-IV
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