Effect of pickings on seed quality in cotton (Gossypium hirsutum and Gossypium arboreum)
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Date
2005
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Publisher
CCSHAU
Abstract
Seed quality plays an important role in crop establishment and
overall performance of the crop. Four picking stage viz. First, Second,
Third, Fourth of the eight varieties/hybrids viz. AAH-1, HD-107,
HD-123, HD-324, HHH-223, H-1098, H-1117, H-1226 of cotton
(Gossypium hirsutum and Gossypium arboreum) were evaluated by
various tests viz. Standard germination, Seedling length, Seedling dry
matter, Vigour index-I, Vigour index-II, Dehydrogenase activity test,
Electrical conductivity, Seed index, Seed density, Tetrazolium test in
the Department of Seed Science and Technology at Chaudhary Charan
Singh Haryana Agricultural University, Hisar during 2003-2004.
The quality of second picking seed was found significantly better
as comparision to other pickings in all varieties/hybrids except seed
index which was observed superior in the first picking seed.AAH-1 in
desi cotton and HHH-223 variety in American cotton were found
superior in seed quality and storability as compare to other varieties. In
desi and American cotton AAH-1 and HHH-223 in second picking were
recorded significantly higher interaction effect as compared to other
combinations (pickings/varieties).
These seed lots of various pickings were accelerated aged at
42±1oC for 72 hrs. for predicting the storability. The storability of
second picking seed was observed significantly better as comparison to
other pickings in all varieties / hybrids. AAH-1 in desi cotton and
HHH-223 variety in American cotton wee found superior in storability
as compare to other variation.