Author(s): S. Maji, M. Bhowmick, S. Basu, P. Chakraborty, S. Jena, S. K. Dutta, R. Nath, P. Bandyopadhyay and P. K. Chakraborty

Abstract: A two year experiment was conducted during the winter seasons of 2010-11 and 2011-12 on potato (Solanum tuberosum L.) (Variety: ‘Kufri Jyoti’). The crop was planted on five dates, starting from 15th November at an interval of seven days with two N doses (N - 200 kg ha-1 and N - 150 kg ha-1) in a split plot design with four replications at District Seed Farm, BCKV to study the impact of thermal environment on the growth and productivity of potato. The 15th November planted crop recorded the highest total growing day degree Celsius (GDD) in both the years and it gradually decreased with the delay in planting. 54.8 and 33.0% variation in total dry matter could be attributed to the variation in GDD under two N doses respectively. The yield of the crop significantly reduced with the increment in heliothermal unit beyond 9000 day degree Celsius hour. The mean thermal use efficiency didn’t follow a definite trend.....

Download Full Article: Click Here