Release of a New Lodging-resistant Mutant Cultivar Produced by Gamma-rays in Glutinous Rice

Autor:	Hikoyuki Yamaguchi, Isao Igarashi, Takeshi Sato
Rok vydání:	2001
Předmět:	Horticulture Radiation Mutation breeding Mutant line Mutant Grain quality food and beverages Cultivar Biology
Zdroj:	RADIOISOTOPES. 50:442-446
ISSN:	1884-4111 0033-8303
DOI:	10.3769/radioisotopes.50.10_442
Popis:	To obtain short culm mutants with lodging resistance, while retaining the other desirable traits, such as an excellent quality of the original variety, dry seeds of a glutinous rice cultivar Mezuru were exposed to gamma-rays. In M3, thirty plants were selected from 4 020 plants, based on the short culm length. From the results of the subsequent yield and adaptability tests, a promising mutant line was called by the name of Sakata-Mezuru as a new cultivar in 1996. This mutant variety was mainly characterized by shortening of each internode, especially the lowest internode, and at harvest it was more adaptable to mechanical work due to the lodging resistance than its parent. It was demonstrated that the grain quality of the mutant equals to or slightly surpasses that of the parent. Sakata-Mezuru has been registered in February of 2001 and officially released.
Databáze:	OpenAIRE
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