id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
afs-72297	Dedio, Walter	Breeding sunflower cultivars for the northern latitudes	1988	5	.pdf	application/pdf	2199	136	68	Index words: sunflower, early hybrids, male-sterile forms, restorer lines, dwarf hybrid Introduction The sunflower crop (Helianthus ammus L.) is rather late maturing, usually requiring over 120 days to reach physiological maturity. Private breeders have also been involved in breeding of early maturity sunflower hybrids.	cache/afs-72297.pdf	txt/afs-72297.txt