Effect of Environmental Factors on Chemical Composition of Seeds in Soybean, Sesame, Linseed and Safflower Crops

Abstract

The aim of present review article is to clarify the effect of climate on seed chemical composition of Soybean, Sesame, Linseed and Safflower. Environment plays an important role during the growing stages of crops and eventually influence the chemical composition of seed. Temperature, rainfall, sowing time, irrigation, fertilizers, growing season and soil type during different growth stages affect chemical composition of different oilseed crops. Oil content and protein content are specially influenced by prevailing environmental conditions during maturity and post flowering period. High temperature during seed filling stage reduces oil content and increases protein content in safflower. Genotype and location has significant effect on protein, oil and unsaturated fatty acids, namely oleic acid, linoleic acid and linolenic acid in soybean. Oil content and oleic acid increase while protein, linole ic and linolenic acids decrease in early sown soybean. Due to drought stress, protein content increases while oil content decreases in soybean. Pod position also affects pro tein, oil and iso -flavon content of soybean. Oil content and composition in sesame is influenced by soil type, genetic, climatic and agronomic factors as well as growth stages of plant. Temperature variances after flowering express huge impact on content and composition of the linseed oil. Late sowing decreases oil content in linseed while cool temperature, adequate moisture and

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