摘要
本文报道了高粱蔗(Gaoliangzhe)体细胞无性系干种子搭载“90105”科学卫星返地后整个生育周期的表现。在空间微重力条件下宇宙线对高粱蔗,重要农艺性状产生明显的辐射效应:(1)载星的无性系(Clone)再生植株14—1干种子出苗率、发育速度、株高均高于对照,并整齐一致;(2)生物学产量和子粒产量分别比对照高27.34%与38.82%,穗长、千粒重、蔗液垂度也有所增加,充分显示出利用航天技术对重要农作物及生物工程后代进行改良和辐射育种的可能性与广阔前景。
Gaoliangzhe(the progeny of a cross-breed of Chinese Sorghum with sugarcane)so- matic clone seeds which had a space travel on board the“90105”scientific satellite were grown and observed throughout the growing poriod.It proves that the exposure of the seeds to cosmic rays under microgravity has produced apparent radiative effect on some a- gronomic characters as follows:(1)The“space travelled”seeds of clone plants 14-1,compar- ing with the control,show an increase in the percentage of germination,growing rate and plant height and grow in identity;(2)Both their biomass and grain yields are higher 27. 34% and 38.82% than those of the control,respectively;the ear length,1000-grain weight and the concontration of sugar have also increased.Thus,it seems promissing to apply space technology to the variety improving and radiation breeding of the crops and the bio- engineering progenies.
出处
《吉林农业科学》
CSCD
北大核心
1992年第3期9-12,共4页
Journal of Jilin Agricultural Sciences
