激光生物学报2012，Vol.21Issue(6)：557-562,6.DOI:10.3969/j.issn.1007-7146.2012.06.015
γ-射线辐射诱导水稻黄化转绿叶色突变体X611的特性研究
Studies on the Characteristics of the Greenable Rice Mutant with Yellow Leaves Induced by γ-rays Irradiation
摘要
Abstract
Callus induced from mature embryos of japonica rice varieties "Xiushuill" were irradiated with 60Co γ-rays and a green-revertible yellow mutant X611 was obtained from the progeny of regenerated plants. The phenotypic characterization, thermo-sensitivity,physiological property and agronomic traits of the Mutant X611 were analyzed. The seedlings of X611 was yellowish green, yellow-green and greenish at the temperature of 17 ℃,25 ℃ and 30 ℃ , respectively. Changes of leaf color under different temperatures indicate that the X611 is a low-temperature-sensitive mutant. Compared with the wild-type under conditions of different sowing time, the mutant had a decline content of photosynthetic pigment significantly at seedling stage,but similar at the heading stage,and the same tendency was observed in net photosynthetic rate. The plant height of the mutant X611 were lower than its wild-type,but similar in flag leaf length,flag leaf width,panicle length,number of productive panicles per plant, number of spikelets per panicle, seed setting rate and 1 000-grain weight. The mutant X611 had good agronomic traits, therefore it had a high value for application in rice breeding.关键词
水稻/γ-射线/黄绿叶突变体/温度敏感/净光合速率/农艺性状Key words
γ-rays/ yellow-green mutant/ thermo-sensitivity/ net photosynthetic rate/ agronomic traits分类
农业科技引用本文复制引用
宣云,张瑛,杨岚,许有尊,徐文静,王川,任杰..γ-射线辐射诱导水稻黄化转绿叶色突变体X611的特性研究[J].激光生物学报,2012,21(6):557-562,6.基金项目
安徽省农业科学院院长青年创新基金项目(12B1324) （12B1324）
农业部农业公益性行业科研专项 "核技术农业应用"(200803034). （200803034）
