Problems in forage sorghum breeding in Japan

Mogami, K. (1976) Problems in forage sorghum breeding in Japan. Japan Agricultural Research Quarterly, 10 (3). pp. 143-148.

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Sorgo-type male-sterile lines, developed by back crossing a Sorgo type known as African millet to grain-type male-sterile lines, and the grass-type male-sterile Tall Rhodesian, introduced from Nebraska, were crossed and 354 combinations examined between 1966 and 1973, and classified into six groups by pollen parent. The most promising groups were: hybrids of Hegari, which were tall, thick stemmed and late maturing and showed good regrowth; hybrids of Japanese Native, which were tall, relatively thick stemmed and of midseason maturity, showing good initial growth and regrowth; and hybrids of Sudan grass, which were relatively tall, thin stemmed, many tillered and early maturing, with good initial growth and regrowth. Heterosis was apparent for plant height and yield. The effect of parental characteristics on hybrid characteristics differed for the different hybrid groups and characters. In the Hegari, Koaliang, Sorgo and Japanese Native hybrids, variation was mainly due to the general combining ability of the parents, the male parent having more effect than the female. Specific combining ability had little effect. In the Sudan grass and IARI groups, an effect of specific combining ability as well as general combining ability was observed, the yield of the Sudan grass hybrids being determined only by specific combining ability

Item Type: Article
Author Affiliation: Hiroshima Agricultural Experiment Station, Japan
Subjects: Crop Improvement > Genetics/Genomics
Crop Improvement > Plant Breeding
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 23 Jul 2012 08:39
Last Modified: 23 Jul 2012 08:39
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