SINGH I, SINGH P. HEAT AND PHOTOTHERMAL INDICES AND THEIR RELATIONS TO PHENOLOGY IN WHEAT. IJGPB [Internet]. 1996 Aug. 25 [cited 2026 Feb. 15];56(03):292-8. Available from: https://www.isgpb.org/journal/index.php/IJGPB/article/view/2578