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- E-ISSN Number: 2277-7695
- P-ISSN Number: 2349-8242
- CODEN Code: PIHNBQ
- ZDB-Number: 2663038-2
- IC Journal ID: 7725
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Vol. 12, Issue 9 (2023)
Effect of low-cost management practices on yield, quality and economics of Bt cotton (Gossypium hirsutum L.) under middle Gujarat conditions
Author(s):
Chetana Dodiya, KD Mevada and MV Patel
Chetana Dodiya, KD Mevada and MV Patel
Abstract:
A field experiment to assess the effect of low-cost management practices viz; crop geometry, detopping and plant growth regulator on yield, quality and economics of Bt cotton (Gossypium hirsutum L.) under middle Gujarat conditions was carried out during kharif season of 2016-17 and 2017-18 at the College Agronomy Farm, Department of Agronomy, B. A. College of Agriculture, Anand Agricultural University, Anand (Gujarat) in loamy sand soils. The treatment combinations comprising three crop geometry treatments i.e., 90 cm x 45 cm (C1), 120 cm x 45 cm (C2) and 90 cm x 60 cm (C3) and five different detopping and plant growth regulator treatments i.e., Control (no detopping and no spray of NAA) (D1), Detopping at 60 DAS (D2), Detopping at 60 DAS + spray of NAA @ 30 ppm at 60 DAS (D3), Detopping at 80 DAS (D4) and Detopping at 80 DAS + spray of NAA @ 30 ppm at 60 DAS (D5) laid in a split plot design with four replications.
A field experiment to assess the effect of low-cost management practices viz; crop geometry, detopping and plant growth regulator on yield, quality and economics of Bt cotton (Gossypium hirsutum L.) under middle Gujarat conditions was carried out during kharif season of 2016-17 and 2017-18 at the College Agronomy Farm, Department of Agronomy, B. A. College of Agriculture, Anand Agricultural University, Anand (Gujarat) in loamy sand soils. The treatment combinations comprising three crop geometry treatments i.e., 90 cm x 45 cm (C1), 120 cm x 45 cm (C2) and 90 cm x 60 cm (C3) and five different detopping and plant growth regulator treatments i.e., Control (no detopping and no spray of NAA) (D1), Detopping at 60 DAS (D2), Detopping at 60 DAS + spray of NAA @ 30 ppm at 60 DAS (D3), Detopping at 80 DAS (D4) and Detopping at 80 DAS + spray of NAA @ 30 ppm at 60 DAS (D5) laid in a split plot design with four replications.
The results indicated that sowing of Bt cotton at 90 cm x 45 cm crop geometry recorded significantly higher plant population at 30 DAS and at harvest. Plant height at 40, 80 and 120 DAS and number of monopodial branches before first plucking, boll weight at every plucking, average boll weight and seed index were remained unaffected due to crop geometry. However, number of sympodial branches before first plucking, number of plucked bolls per plant, seed and stalk yields per ha as well as harvest index were significantly higher under crop geometry of 90 cm x 60 cm. Higher gross realization (₹ 1,86,520 ha-1), net realization (₹ 1,23,879 ha-1) and B:C ratio (2.98) were obtained when Bt cotton was sown at 90 cm x 60 cm crop geometry. The quality parameters viz., ginning percentage, fiber length, fiber strength and oil content were found unaffected due to different crop geometry treatments. Significantly higher oil yield recorded under the crop geometry 90 cm x 60 cm.
Plant population at 30 DAS and at harvest, number of monopodial branches before first plucking per plant, boll weight at every plucking, number of plucked bolls per plant, seed index, ginning percentage and oil content remained unaffected due to different detopping and plant growth regulator treatments. The control treatment (no detopping and no spray of NAA) recorded significantly higher plant height at 80 and 120 DAS.
Yield attributes viz., number of sympodial branches before first plucking and average boll wt, quality parameters viz., fiber length, fiber strength and oil yield as well as seed cotton yield and harvest index were found significantly higher when crop was detopped at 80 DAS + spray of NAA @ 30 ppm at 60 DAS than rest of treatments, whereas, significantly higher stalk yield was produced under detopping at 60 DAS + spray of NAA @ 30 ppm at 60 DAS. Maximum gross realization (₹ 1,85,816 ha-1), net realization (₹ 1,28,722 ha-1) and B:C ratio (3.25) were observed under detopping at 80 DAS + spray of NAA @ 30 ppm at 60 DAS.
Pages: 1495-1502 | 180 Views 120 Downloads
How to cite this article:
Chetana Dodiya, KD Mevada, MV Patel. Effect of low-cost management practices on yield, quality and economics of Bt cotton (Gossypium hirsutum L.) under middle Gujarat conditions. Pharma Innovation 2023;12(9):1495-1502.
Journal code(s)
- E-ISSN Number: 2277-7695
- P-ISSN Number: 2349-8242
- CODEN Code: PIHNBQ
- ZDB-Number: 2663038-2
- IC Journal ID: 7725
Main Menu
Special Issue
Copyright Form
Identifier
The Pharma Innovation Journal
