Studies on planting geometry of male parent (R-64NB) on pollen production and its influence on seed yield in sunflower hybrid seed production (RSFH-1)

摘要

Sunflower (Helianthus annuus L.) is one of the importantmembers of Asteraceae family and the second mostimportant edible oilseed crop of the world next tosoybean. Presently in India, sunflower is grown over anarea of 2.01 m.ha with a production of about 1.09 m.tonnes and productivity of 539 kg/ha. In Karnataka,sunflower is grown over an area of 0.88 m.ha with annualproduction of 0.41 m. tonnes and production of 463 kg/ha(Anonymous, 2004).