HARSHANA*, ANIL KUMAR, CHANDER SHEKHAR, RAJ SINGH, MANOJ KUMAR, DINESH TOMAR, M. L. KHICHAR, S. K. THAKRAL AND MAMTA
Department of Agricultural Meteorology
Department of Statistics and Math, 3Department of Soil Science,
Department of Agronomy, COA, 5SMS, DAMU, KVK, Kurukshetra
CCS Haryana Agricultural University, Hisar (Haryana), India
*(e-mail : marwalharshana7@gmail.com)
(Received : 14 July 2022; Accepted : 25 July 2022)
SUMMARY
Field experiment was conducted during kharif season of 2020 and 2021 at Research farm, Department of Agricultural Meteorology, CCS HAU, Hisar located at 29o 10´ N latitude, 75o 46´ E longitude and 215.2 m altitude for quantification of agro-meteorological observations of pearl millet genotypes under varying growing environments at rainfed conditions. The experiment was put in a factorial RBD design which comprised of three sowing dates viz. D1 – second fortnight of June; D2 – first fortnight of July and D3 – second Fortnight of July and three different varieties viz., V1 – GHB558, V2 – HHB67 improved, and V3 – HHB272 at different phenological stages with four replications. Among varieties, GHB558 (national check) absorbed more PAR followed by HHB272 and HHB67 improved at all crop growth stages. Significantly higher intercepted solar radiation was gained in D1 followed by D2 and D3 sown crop at 35 DAS, LAI max and physiological maturity, respectively during both crop seasons. Among varieties, GHB 558 variety received higher intercepted solar radiation at 35 DAS, LAI max and physiological maturity. First date of sowing recorded significantly higher chlorophyll content as compare to other dates of sowing. During both crop seasons, the higher canopy temperature was observed at physiological maturity. The canopy temperature increased with delay in sowing. A comparison between two years of study, the highest chlorophyll content was observed during crop season 2020 as compare to crop season 2021.
Key words: Pearl millet, PAR, LAI, Growing environment, Radiation