1Department of Biochemistry, Punjab Agricultural University, Ludhiana, 141004, Punjab, India
2Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, 141004, Punjab, India
*Author for correspondence: Email: suchetasharma_pau@yahoo.com
Online published on 11 January, 2013.
The biochemical composition and seed yield of two photo and thermo insensitive soybean (Glycine max L. Merr.) genotypes ‘SL(E)27’ and ‘SL(E)28’, grown in three different sowing seasons viz. early in February, main in June and late in August during the year 2009 were evaluated. Sowing seasons had significantly affected seed oil and protein content and yield. ‘SL(E) 27’ showed higher protein content as compared to ‘SL(E)28’ whereas oil content did not vary significantly among these genotypes in three seasons studied. Highest yield was recorded in early sowing followed by late and main sowing. Starch content of soybean seeds decreased from February to June sowing, but values did not differ significantly in June and August sowing. Sowing of photo and thermo insensitive soybean genotypes ‘SL(E)27’ and ‘SL(E)28’ in June or August altered seed composition to a certain extent, but significantly reduced yield.
Glycine max L, Seed composition, sowing season
