Effect of Sowing Dates and Genotypes on Yield and Yield Contributing Traits of Upland Cotton (Gossypium hirsutum L.)

“…Cotton ( Gossypium barbadense L.) is a crucial cash crop in Egypt, providing fiber for textiles as well as edible oil ( Gialvalis and Seagull, 2001 ; Ishaq et al, 2022 ; Zhao et al, 2022 ). During the 2019–2020 growing season, cotton was grown on 85,000 hectares with a total production of 250,000 bales.…”

Section: Introductionmentioning

confidence: 99%

Impact of Plant Spacing and Nitrogen Rates on Growth Characteristics and Yield Attributes of Egyptian Cotton (Gossypium barbadense L.)

et al. 2022

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This current study was performed to determine the influences of plant spacing, Nitrogen (N) fertilization rate and their effect, on growth traits, yield, and yield components of cotton (Gossypium barbadense L.) cv. Giza 97 during the 2019 and 2020 seasons. A split plot experiment in three replicates was utilized whereas the cotton seeds were planted at 20, 30, and 40 cm, as main plots and nitrogen at 75, 100, and 125%, was in subplots. The results revealed that the planting spacing at 40 cm significantly (p ≤ 0.01) increased plant height, number of fruiting branches per plant, number of bolls per plant, boll weight (BW), lint percentage (L%), seed cotton yield (SCY), lint cotton yield (LCY), seed index and lint index by 165.68 cm, 20.92, 23.93, 3.75 g, 42.01%, 4.24 ton/ha, 5.16 ton/ha, 12.05, 7.86, respectively, as average in both seasons. The application of N fertilizer rate at 125% caused a maximum increase in growth and yield parameters i.e., plant height (169.08 cm), number of vegetative branches (2.67), number of fruiting branches per plant (20.82), number bolls per fruiting branch (1.39), number of bolls per plant (23.73), boll weight (4.1 g), lint percent (41.9%), seed index (11.8 g), and lint index (8.2), while the plants treated with 100% N rates exhibited highest seed cotton yield (4.3 ton/ha) and lint cotton yield (5.6 ton/ha), as average in both seasons. Combining plant spacing at 40 cm between plants with a 100% N fertilizer rate recorded the highest lint cotton yield (5.67 ton/ha), while the highest seed cotton yield (4.43 and 4.50 ton/ha) was obtained from 125% N fertilizer rate under planting spacing 20 and 40 cm, respectively. Conclusively, a wide density (40 cm) with 125% N is a promising option for improved biomass, cotton growth, yield, physiological traits, and fiber quality.

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“…Optimum sowing time is a crucial factor for the best yield in a specific environment. Ishaq et al (2022) found mid of the March as the best sowing time for upland cotton in the central zone of the Punjab province. Several statistic tools have been used to isolate stable strains against test locations in cotton crop (Phuke et al, 2017).…”

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confidence: 95%

Performance Stability Assessment in upland Cotton Strains throughout Cotton-growing Belt in Pakistan

Jamil¹,

Sarwar²,

Akhtar³

et al. 2022

SJA

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U pland cotton (Gossypium hirsutum. L) is mainly cultivated for its spinnable fibre worldwide. It is truly considered a cash crop and the backbone of the country's economy. It accounts for 0.8% accumulation in GDP and 4.2 per cent value addition in the agriculture sector (GoP, 2020). Pakistan is numbered as Abstract | Cotton is a real cash crop and contributes to the national economy by enhancing exports. The yield performance of cotton is fluctuating under erratic test conditions due to genotype into environment interaction. The present study was executed at 14sites throughout Pakistan according to a randomized complete block design replicated 03 times during Kharif (summer season) 2019.The experiment aimed to assess the performance stability of studied strains in terms of seed cotton yield against selected environments. Twenty-five upland cotton strains recently bred by different research stations including the check cultivar (CIM-602) were selected for this study. Additive main effects and multiplicative interaction (AMMI) analysis procedure was followed for the data analysis. The analysis of variance revealed that strains, environments and genotype into environments interaction (GEI) results were significant at (p≤0.01). Further, the GEI sum of squares (SS) was comprised of (20.5%) out of total variability. Seven interaction Principal Component Axis (IPCA) were found significant at (p≤0.01). IPCA-1 and IPCA-2 were found enfolded with37.9% and 22.2% of GEI portion respectively. AMMI-1 was diagnosed as a predictive model which delineated all test sites into 4 mega environments. The strain (NIAB-1011) won seven environments and qualified as the overall winner of the trial by giving the highest 2604 Kg ha -1 seed cotton yield. Strain GH-U had yielded a maximum of 4070 Kg ha -1 inthe Khuzdar environment. Sahiwal was ranked the top environment with a yield of 3161 Kg ha -1 followed by Khuzdar (2845 Kg ha 1 ) respectively. The genotype selection index (GSI: A non-parametric approach to determine performance stability) distinguished NIAB-135, BH-224 and FH-Am17 being the most stable strains bearing the least GSI value and may be released for general cultivation to boost national cotton production.

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Effect of Sowing Dates and Genotypes on Yield and Yield Contributing Traits of Upland Cotton (Gossypium hirsutum L.)

Cited by 4 publications

References 10 publications

Effect of Genotypes and Planting Dates on Yield and Fibre Quality Parameters of Cotton

Effect of Genotypes and Planting Dates on Yield and Fibre Quality Parameters of Cotton

Impact of Plant Spacing and Nitrogen Rates on Growth Characteristics and Yield Attributes of Egyptian Cotton (Gossypium barbadense L.)

Performance Stability Assessment in upland Cotton Strains throughout Cotton-growing Belt in Pakistan

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