SHIVARAM, B2019-09-242019-09-241986No. of references 90http://krishikosh.egranth.ac.in/handle/1/5810129150Abstract not availableennullPHYSIOLOGICAL REASONS FOR VARIATIONS IN PRODUCTIVITY IN SUNFLOWER (Helianthus annuus L.) GENOTYPES UNDER DIFFERENT PLANT POPULATIONSThesis