卫星搭载小麦SP_2代突变系光合及主要农艺性状的研究  

Study on mutation lines of wheat SP_2 generation under spaceflight

作　　者：吕金印[1] 戚微娜[2] 杨德[1] 张素娜[2] 高俊凤[1] 

机构地区：[1]西北农林科技大学生命科学学院,陕西杨凌712100 [2]西北农林科技大学理学院,陕西杨凌712100

出　　处：《西北农林科技大学学报（自然科学版）》2009年第12期123-126,132,共5页Journal of Northwest A&F University(Natural Science Edition)

基　　金：农业部农业公益性行业科研专项"核技术农业应用"(200803034);西北农林科技大学校重点科研项目

摘　　要：【目的】对小麦纯系种子进行卫星搭载处理,从中筛选突变株,为冬小麦育种提供新的种质资源。【方法】通过田间观察与室内分析,研究卫星搭载小麦陕253和西农1043 2个品种第二代(SP2)光合速率、叶绿素含量及主要农艺性状的变化。【结果】2个小麦品种共得到突变株系12份,其中陕253矮秆变异2份(SP2-253-38和SP2-253-54)、早熟变异1份(SP2-253-51)、高秆变异1份(SP2-253-27);西农1043矮秆变异6份(SP2-1043-1、SP2-1043-15、SP2-1043-16、SP2-1043-19、SP2-1043-40、SP2-1043-41)、高秆变异1份(SP2-1043-37)、矮秆大穗变异1份(SP2-1043-14)。【结论】卫星搭载能够引起较高的突变频率,为冬小麦育种提供了选择依据。[Objective] Wheat seeds of pure lines were used for spaceflight treatment. Mutants were chosen to provide new resource of germ plasm. [Method] This study analyzed the photosynthetic rate,the content of chlorophyll and main agronomic characters of wheat Shaan 253 and Xinong 1043 in the second generation under spaceflight treatment. [Result] Twelve mutations were obtained. The short plant mutations were SP2-253- 38, SP2-253-54, SP2-1043-1, SP2-1043-15, SP2-1043-16, SP2-1043-19, SP2-1043-40, SP2 -1043- 41 ,high plant mutations SP2-253-27,SP2-1043-37;earlier ripe mutation is SP2 -253-51 ,short plant and bigger spike SP2- 1043-14. [Conclusion] Spaceflight can induce high variance frequency, and it offers evidence for the breeding of winter wheat.

关 键 词：卫星搭载 小麦 农艺性状 光合 

分 类 号：S512.1[农业科学—作物学]