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1.
Article | IMSEAR | ID: sea-230558

RÉSUMÉ

A field experiment was conducted in kharif season 2020 to study the effect of sowing time and row spacing on growth, yield and agro-climatic indices of Cotton at Research Farm, Department of Agricultural Meteorology, CCS Haryana Agricultural University, Hisar. The experiment was performed in split-plot design and replicated thrice. The experiment included nine treatment combinations with three sowing dates and row spacings. Among different sowing times, cotton sown on 19th April had significantly higher plant height (176.3 cm), dry matter accumulation (453.39 g plant-1), LAI (1.92), GDD (Growing Degree Days), HTU (Heliothermal Units), PTU (Photothermal Units) and seed cotton yield (3057 kg ha-1) in comparison to sowing in May i.e. May 8th and May 28th. Among various row spacings, cotton planted with a row spacing of 67.5 cm x 60 cm produced significantly higher seed cotton (2657 kg ha-1) and plant height (156.40 cm), although growth parameters i.e. LAI (2.26) and dry matter accumulation (397.92 g plant-1) alongwith Agro-climatic indices (GDD, HTU, PTU) were observed to be greater with a row spacing of 100 x 60 cm.

2.
Article | IMSEAR | ID: sea-230557

RÉSUMÉ

A field experiment was performed to study the effect of different sowing times and varieties on agroclimatic indices, phenology and growth of clusterbean at CCS Haryana Agricultural University, Hisar (Haryana). Experiment was laid out in factorial randomized block design with three replications. Treatments consists of two factors i.e. sowing time and varieties. Three clusterbean varieties i.e. HG 365 (V1), HG 563 (V2) and HG 2-20 (V3) with each sown at three different dates of sowing i.e first (D1), third (D2) and fourth (D3) week of July. Clusterbean variety HG 563(V2), sown in first week of July (D1) resulted in significantly higher accumulation of agroclimatic indices i.e. growing degree days, photo thermal units, heliothermal units and heat use efficiency because the early sown crop had a fully developed normal reproductive phase and took longer time to attain maturity. Similarly, more number of days were taken for emergence, days to 50% flowering, days to 50% pod formation and days to maturity in variety HG 563, sown in first week of July. Significantly higher leaf area index and dry matter accumulation were observed in HG 563 sown on 1st week of July than rest of the varieties and date of sowings.

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