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Subject: Agricultural Meteorology × Author: Godara, Mohit × End date: 2022 × Start date: 2020 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Study of microclimate and radiation interception in Bt cotton under different growing environments
    (CCSHAU, Hisar, 2021-07) Godara, Mohit; Khichar, M.L
    Field experiment on ‘Study of microclimate and radiation interception in Bt cotton under different growing environments’ was carried out at research farm, Department of Agricultural Meteorology, CCS HAU, Hisar during Kharif season 2020. The main plot treatments consisted of three date of sowing viz., 19th of April (D1), 8th of May (D2) and 28th May (D3) and the sub-plot treatments consisted of three spacing viz., 67.5 cm × 60 cm (S1), 100 cm x 45 cm (S2) and 100 cm x 60 cm (S3) replicated three times and tested in split plot design. All growth parameters, growth rates, yield and yield attributes, dry matter accumulation, LAI and plant height were found highest in early sown crop under 19th April (D1). Intercepted Photosynthetically active radiation was highest in narrow plant spacings 67.5 cm x 60 cm and in early sown crop under 19th April (D1). Seed cotton yield was positively correlated with temperature, BSS and agrometeorological indices whereas negatively correlated with relative humidity in three different Dates of sowing. Dry matter accumulation per plant found to be highest in wider plant spacing 100 cm x 60 cm while plant height and LAI were maximum in narrow plant spacing 67.5 cm x 60 cm. Diurnal range of temperature and relative humidity profiles were higher in wider plant spacing 100 cm x 60 cm and in late sown crop under 28th May (D3) sown Bt cotton crop.