Seed ageing is known to cause changes in vigour, viability and genetic status of crop plants. Two maize hybrids were subjected to accelerated ageing and a field trial was conducted. Observations on 15 quantitative characters were recorded. The results indicated that the phenotypic characters viz., plant height, number of leaves plant', days to 50 per cent tasseling, days to 50 per cent cobing. plant weight at maturity, tassel length, cob weight, etc., get considerably altered in the ageing population. The ageing treatments also caused changes in the nature and degree of association between yield and its components.
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Agricultural Students Union
Tamil Nadu Agricultural University
Coimbatore - 641 003
Tamil Nadu, India.
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