Author(s):

Ishrath Sulthana, P Sujatha, K Jhansi Rani, M Sudha Rani and K Keshavulu

Abstract:
An experiment was conducted to study the influence of sowing dates on physiological quality of soybean variety JS 335 during kharif, 2013. Sowings were taken up at weekly interval from July to August. Data were recorded on various parameters like germination, shoot length, root length, seedling dry weight, vigour index and field emergence on seeds produced from different sowing dates. The results of the experiment revealed that the above parameters significantly affected by sowing dates. The highest germination percentage (99%), shoot length (18.13 cm), root length (18.56 cm), seedling dry weight (89.0 mg), seedling vigour index- I and II (3607 and 8.81 respectively) and field emergence (91%) were recorded for crop sown in July 2^nd week. It was noticed that sowing date significantly affected the seed quality parameters and seeds from early sowings (July 2^nd week sowing) had the good seed quality.

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