Abstract
A field experiment was carried out during two consecutive kharif seasons of 2009 and 2010 at research farm of Department of Agronomy, Marathwada Krishi Vidyapeeth, Parbhani to evaluate the effect of planting geometry and different nitrogen levels on productivity and quality of Bt-cotton (Gossypium hirsutum L.) under irrigated and rainfed conditions. The results reveals that, Bt cotton sown under irrigated condition (irrigation applied at three critical growth stages of cotton) significantly improved the seed cotton yield (33.71 q/ha) over rainfed condition (15.00 q/ ha). The growth attributes, yield contributing characters and ginning percentage were improved significantly in irrigation as compared to rainfed during both the seasons of experiment. The plant geometry of 120 cm × 45 cm recorded highest seed cotton yield (26.46 q/ha) and stood significantly superior over other planting geometries. It has 8.9 and 13.5% yield increment over 90 cm × 60 cm and 180 cm × 30 cm, respectively. All growth and yield contributing parameters were recorded significantly higher with 120 cm × 45 cm plant geometry as compared to other planting geometries, except plant height (cm), monopodials/plant, leaf area (dm2) and dry matter accumulation (g/plant). Application of nitrogen @ 150 kg N/ha to Bt cotton increases 25.5% and 8.6% seed cotton yield over 100 kg N/ha and 125 kg N/ha, respectively. Quality parameters did not influence significantly by irrigation, planting geometries and nitrogen levels confirms that fibre properties governs by genetic makeup and least affected by management practices.
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Claims 9
Claim · model-written summary
Irrigation significantly increased seed-cotton yield over rainfed production.
Verbatim
e0“Bt cotton sown under irrigated condition (irrigation applied at three critical growth stages of cotton) significantly improved the seed cotton yield (33.71 q/ha) over rainfed condition (15.00 q/ ha)”
Claim · model-written summary
Irrigation significantly improved growth attributes, yield components and ginning percentage.
- Treatment
- irrigatione0
- Outcome
- growth attributes, yield contributing characters and ginning percentagee0
- Direction
- improvede0
- Comparator
- rainfede0
Not reportedTaxon
Verbatim
e0“The growth attributes, yield contributing characters and ginning percentage were improved significantly in irrigation as compared to rainfed”
t0“Bt cotton”
Claim · model-written summary
Spacing of 120 cm × 45 cm produced the highest seed-cotton yield.
- Treatment
- 120 cm × 45 cme0
- Outcome
- seed cotton yielde0
- Direction
- higheste0
- Value
- 26.46 q/hae0
- Comparator
- other planting geometriese0
Not reportedTaxon
Verbatim
e0“The plant geometry of 120 cm × 45 cm recorded highest seed cotton yield (26.46 q/ha) and stood significantly superior over other planting geometries”
t0“Bt cotton”
Claim · model-written summary
The 120 cm × 45 cm spacing increased yield 8.9% over 90 cm × 60 cm.
Not reportedTaxonTreatment
Verbatim
e0“It has 8.9 and 13.5% yield increment over 90 cm × 60 cm and 180 cm × 30 cm, respectively”
t0“Bt cotton”
Claim · model-written summary
The 120 cm × 45 cm spacing increased yield 13.5% over 180 cm × 30 cm.
Not reportedTaxonTreatment
Verbatim
e0“It has 8.9 and 13.5% yield increment over 90 cm × 60 cm and 180 cm × 30 cm, respectively”
t0“Bt cotton”
Claim · model-written summary
Most growth and yield components were higher at 120 cm × 45 cm spacing than at other spacings.
- Treatment
- 120 cm × 45 cm plant geometrye0
- Outcome
- growth and yield contributing parameterse0
- Direction
- highere0
- Qualifier
- except plant height (cm), monopodials/plant, leaf area (dm2) and dry matter accumulation (g/plant)e0
- Comparator
- other planting geometriese0
Not reportedTaxon
Verbatim
e0“All growth and yield contributing parameters were recorded significantly higher with 120 cm × 45 cm plant geometry as compared to other planting geometries, except plant height (cm), monopodials/plant, leaf area (dm2) and dry matter accumulation (g/plant)”
t0“Bt cotton”
Claim · model-written summary
Nitrogen at 150 kg N/ha increased yield 25.5% over 100 kg N/ha.
Verbatim
e0“Application of nitrogen @ 150 kg N/ha to Bt cotton increases 25.5% and 8.6% seed cotton yield over 100 kg N/ha and 125 kg N/ha, respectively”
Claim · model-written summary
Nitrogen at 150 kg N/ha increased yield 8.6% over 125 kg N/ha.
Verbatim
e0“Application of nitrogen @ 150 kg N/ha to Bt cotton increases 25.5% and 8.6% seed cotton yield over 100 kg N/ha and 125 kg N/ha, respectively”
Claim · model-written summary
Irrigation, spacing and nitrogen rate did not significantly influence cotton quality parameters.
- Treatment
- irrigation, planting geometries and nitrogen levelse0
- Outcome
- Quality parameterse0
- Direction
- did not influence significantlye0
Not reportedTaxonComparator
Verbatim
e0“Quality parameters did not influence significantly by irrigation, planting geometries and nitrogen levels”
t0“Bt cotton”
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