Korean Journal of Agricultural Science (농업과학연구)
- Volume 22 Issue 2
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- Pages.156-162
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- 1995
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- 2466-2402(pISSN)
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- 2466-2410(eISSN)
Characteristics of Maize Line Treated with Mutagen of γ-Ray at M1 Generation
돌연변이원(突然變異原) γ-선(線)을 처리(處理)한 M1 세대(世代) 옥수수 계통(系統)의 특성(特性)
- Lee, Hee Bong (Dept. of Agronomy, College of Agriculture, Chungnam National University)
- 이희봉 (충남대학교 농과대학 농학과)
- Published : 1995.12.31
Abstract
This study was carried out to select the useful mutants among 20 lines treated with mutagen, gamma ray. These materials were treated with 15, 20, 25 and 30Krads, respectively and sowed at experimental field of College of Agriculture on 27th May, 1995. Items surveyed were germination rate and loss of chlorophyll at seedling stages, abnormal reproductive organs, discordance of flowering times and stem and ear height at ripening stages. The germination rate of lines treated with 15 Krad was different. The germination rate of the IK1, IK2 and Sinki lines were high, while the IK3, A632 and FR140 lines were very low. At same dose level, the germination rate of both IK1/H26 and Puyo synthetic variety were different; the germination rate of the IK1/H26 was high as above 70% at all treatments, while that of the Puyo synthetic variety was very poor at above 20 Krad. Generally stem adn ear height of the IK1/H26 were gradually decreased as the dose of mutagen increased, but there was no difference in stem and ear height of the IK1/H26 when this line was treated with 20Krad. The stem and ear height of lines treated with 15 Krad were shown to be decreased than those of check with non-treatment. The number of tiller of tillering lines were not greatly affected by
돌연변이원(突然變異原)
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