Effect of Space Flight Factors on Plant Biomass Developed from Alfalfa Seeds Carried by the Satellite  

卫星搭载对紫花苜蓿当代植株生物量的影响(英文)

作　　者：任卫波[1] 赵亮[2] 王蜜[2] 陈立波[1] 郭慧琴[1] 

机构地区：[1]中国农业科学院草原所,内蒙古呼和浩特010010 [2]内蒙古农业大学,内蒙古呼和浩特010018

出　　处：《Agricultural Science & Technology》2008年第5期78-80,98,共4页农业科学与技术（英文版）

基　　金：Supported by the Special Fund of Basic Scientific Research-Related Subsidy of State-Level Scientific Research Institute for Public Interest;Key Project of National Science and Technology Planning during"the Eleventh Five-year Plan"(2008BADB3B04)~~

摘　　要：[Objective] The aim of this study was to investigate the effect of space flight factors on plant biomass in the generation of alfalfa carried by the satellite.[Method]Seeds from three lines of alfalfa were carried by the seed-breeding satellite Shijian-8.After the satellite returned to the ground,stem diameter,primary branch number and current-year individual biomass of alfalfa were studied.[Result]After space flight,primary branch number and current-year individual biomass of alfalfa increased significantly,while the stem diameter had no significant change.Using the value over(the mean value of control + three standard deviation)as a criterion to screen,the variants with enlarged stem diameter,increased primary branch number and individual biomass was two,five and twelve respectively.[Conclusion]The obtained variants can be used in the variety improvement of alfalfa and its new variety breeding,but whether its favorable variation can inherit stably to the progenies needs further study.[Objective] The aim of this study was to investigate the effect of space flight factors on plant biomass in the generation of alfalfa carried by the satellite.[Method]Seeds from three lines of alfalfa were carried by the seed-breeding satellite Shijian-8.After the satellite returned to the ground,stem diameter,primary branch number and current-year individual biomass of alfalfa were studied.[Result]After space flight,primary branch number and current-year individual biomass of alfalfa increased significantly,while the stem diameter had no significant change.Using the value over(the mean value of control + three standard deviation)as a criterion to screen,the variants with enlarged stem diameter,increased primary branch number and individual biomass was two,five and twelve respectively.[Conclusion]The obtained variants can be used in the variety improvement of alfalfa and its new variety breeding,but whether its favorable variation can inherit stably to the progenies needs further study.

关 键 词：Space MUTATION ALFALFA INDIVIDUAL BIOMASS 

分 类 号：S541.9[农业科学—作物学]