Ecology, Environment and Conservation Paper

Vol. 29. Aug, Suppl, Issue, 2023; Page No.(124-128)

WEATHER BASED AGRO INDICES AND YIELD OF DIRECT SEEDED RICE (ORYZA SATIVA) AS INFLUENCED BY DIFFERENT DATES OF SOWING AND VARIETIES IN UNION TERRITORY OF J&K, INDIA

Mahender Singh, Monika Banotra1, Charu Sharma, Rohit Sharma, Veena Sharma and B.C Sharma

Abstract

Field experiments were conducted for three consecutive years from kharif 2018-20 at research field of Agro meteorology Section, Division of Agronomy, Skuast Jammu, to evaluate the effect of different sowing dates and Varieties of rice under direct sowing. The experiment was conducted in randomized block design with three dates of sowing ‘1st June’, ‘16th June’ and ‘30th June’ and three rice varieties ‘Pusa 1121’, ‘Basmati-370’ and ‘SRJ -129’ during all the three kharif seasons. The pooled results of three year study revealed that amongst the different sowing dates, significantly highest plant height, grain and straw yield of rice were recorded with ‘1st June’ sowing date and highest heat units, i.e accumulated GDD, Heliothermal units and photo thermal units to complete different phenophases were recorded with early sowing ‘1st June’ date followed by timely sowing ‘16th June’ and late sowing ‘30th June’ where as among the different varieties significantly highest plant height, grain and straw yield of rice were recorded with ‘Basmati-370’ where as significantly lowest growth and yield parameters were recorded with variety ‘Pusa 1121’. ‘SRJ -129’ was significantly different from other two varieties and highest heat units, i.e accumulated GDD, Heliothermal units and photo thermal units to complete different phenophases were recorded with Variety ‘Basmati- 370’ followed by Pusa-1121 and SRJ-129 under different irrigated conditions of Union territory of Jammu and Kashmir.