Seed Development and Quality in Maize Cultivars
AbstractIn order to evaluate seed development and quality of maize (Zea mays) cultivars (DC-370, SC-500, OSSK-602 and SC-604), a split plot experiment (using R.C.B. design) with three replicates was conducted in 2009 at the Research Farm of the Faculty of Agriculture, University of Tabriz, Iran. Seeds were harvested at five day intervals in eight stages. Subsequently, the quality of seed samples was determined in the laboratory. Germination percentage and seedling dry weight were enhanced, but electrical conductivity of seed leachates was reduced with increasing seed weight on mother plant. Maximum seed quality of maize cultivars was attained at the end of seed filling phase. Seed quality at earlier harvests was low, because of immaturity. Differences in maximum seedling dry weight of maize cultivars were attributed to variation in genetic constitution. It was concluded that in maize cultivars, maximum seed quality could be achieved at physiological maturity.
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