Standardization of planting ratio and staggered sowing of male parent in NHH-44 Bt. Cotton hybrid seed production
KrishiKosh
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Title |
Standardization of planting ratio and staggered sowing of male parent in NHH-44 Bt. Cotton hybrid seed production
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Creator |
Shivakant.Sopanroa.Patil
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Contributor |
M.R.Eshanna
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Subject |
Seed Science And Technology
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Description |
An investigation was carried out for standardization of two planting ratio (2:1 and 4:1 female to male rows) and five staggered sowing of male parent in NHH-44 Bt. cotton hybrid seed production at Agricultural Research Station, Dharwad during the kharif season 2007. The planting ratio of 2:1 recorded higher number of flowers crossed (95.40), crossed bolls per plant (33.92) and seed yield (627 kg/ha) compare to 4:1 planting ratio (87.81, 32.36, 953 kg and 566 kg, respectively). The 4:1 planting ratio recorded higher seed weight per boll (2.09 g), seed index (8.81), germination (80.40%) and seedling vigour index (2621) compared to 2:1 planting ratio. Among the staggered planting, staggered sowing of male (25%) first male sowing, 100% female + 25% male seeds were sown 7 days after first male sowing, 50% male seeds were sown 7 days after second male sowing recorded higher number of flower crossed (96.27), crossed boll per plant (34.80), seed cotton yield (1026 kg/ha), and seed yield (650 kg/ha) compared to all other staggered sowing treatments and also staggered sowing of male (25%) first male sowing, 100% female + 50% male seeds were sowing 10 days after first male sowing, 25% male seeds were sown 7 days after second male sowing recorded higher seed weight per boll (2.14 g), seed index (8.88), germination (80.67%), seedling vigour index (2668) compared to all other staggered sowing treatments. The planting ratio of 2:1 in combination with staggered sowing of (25% first male sowing, 100% female + 25% male to be sown 7 days after first male sowing, 50% male to be sown 7 days after second male sowing recorded higher number of flower crossed (99.90), crossed bolls per plant (36.83) and seed yield (692 kg/ha) compared to 4:1 planting ratio with other staggered sowing treatments. |
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Date |
2016-10-27T18:59:10Z
2016-10-27T18:59:10Z 2008 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/82629
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Format |
application/pdf
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Publisher |
UAS, Dharwad
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