Anil KumarSaini, Saloni2023-03-152023-03-152022-07https://krishikosh.egranth.ac.in/handle/1/5810195221The field study entitled “Study of weather and spectral parameters under different growing environments” was carried out at University Research farm of Department of Agricultural Meteorology, CCS HAU, Hisar during rabi 2021-22 season (Lat.: 29° 10 N; Log.: 75° 46 E; Alt.: 215.2 m). The study was comprised of four sowing dates as factor (A) namely (D1) -16th November, (D2) – 22nd November, (D3) – 30th November and (D4) – 7th December, comprising three different cultivars factor (B) viz. (V1)- Kufri Bahar, (V2)-Kufri Pushakr, and (V3)-Kufri Lima. The experiment was laid out in factorial RBD design with four replications. With respect to agrometeorological indices highest GDD, HTU, PTU were accumulated in crop sown on 30th November (D3) and in variety Kufri Lima (V3) and highest TUE and RUE were found in crop sown on 22nd November (D1) and in variety Kufri Pushkar compared to others. Tuber yield and haulm yield was recorded highest in D2 under different growing environments. Highest chlorophyll content was recorded in crop sown on 16th November (D1) and negative value of difference between canopy and air temperature revealed that crop feels no stress. The value of NDV1 was recorded highest in D2. Negative significant correlation of NDVI existed with Tmax, RHe and RF whereas positive correlation existed with LAI, dry matter and tuber yield. Variable reflectivity signature was observed, NDVI were varies among the growing environment at physiological maturity.EnglishThesis