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ACCESSIONPLANT NAMETAXONOMYORIGINGENEBANKIMAGEAVAILABILITYRECEIVEDSOURCE TYPESOURCE DATECOLLECTION SITECOORDINATESELEVATIONHABITATIMPROVEMENT LEVELNARRATIVE
0NSL 73998Duplicate of PI 608821Zea mays L. subsp. mays Kenya Historic1970COLLECTEDBS8 is a semi-exotic synthetic derived from Kenya SK (CBK II) by two cycles of mass selection in Iowa. SK (PI 347266) was formed at Kitale, Kenya by the Major Cereals Project in Africa, with USAID, USDA-ARS, the East African Agriculture and Forestry Research Organization, and the Kenya Ministry of Agriculture, cooperating. SK includes germplasm from the southern USA and the Corn Belt and exotic material from Central and South America, Africa and Europe. The sources were: N. Carolina Jarvis and Indian Chief, DeKalb southern hybrids, Funk Deep South Syn., Funk Tropical Syn., Coker hybrids, Pioneer southern hybrids, Pioneer West Indies Synthetic (Iowa), Pioneer West Indies Synthetic (Tenn.), Pioneer Caribbean Composite, Pioneer Jamaica Synthetic, Tuxpeno X Lancaster, Yugoslav hybrids, Diacol V254, Diacol V540C, Nigeria Late Composite, Nigeria Composite C, Zambia SR52, Zambia Kalahari Syn., Ecuador 573, Puerto Rico GPO2 and GPO6, Cuba 40-Hawaii 5, Cometico, Israel hybrids, USA X Camalia, Kenya Embu I (composite of Central America and USA Germplasm), Nigeria Bulk 2 (NS-1, Tsolo, Diacol V103, Miss.6002, Miss.6004, Metro, EAAFRO 270, EAAFRO 237, Br.155, and Metro). Synthesis was done in five seasons of random mating at Kitale as follows: A bulk sample of all entries was planted over a 10-day period; pollen from this bulk was carried to a row for each entry of the synthetic. Entry identification of the "female" was maintained for the five cycles of synthesis to insure thorough recombination. SK was evaluated in a regional diallel grown in seven southern locations (Crop Sci. 11:911-914). Seed color is segregating white and yellow.1116735NSL 73998