不同玉米基础材料单倍体的诱导率和结实率  

Study on Haploid Induction Rate and Fertility Rate in Different Basic Maize Materials

作　　者：张野[1] 孙贵星 姜龙[1] 慈佳宾[1] 崔学宇 赵超[1] 杨伟光[1] 

机构地区：[1]吉林农业大学农学院,长春130118

出　　处：《吉林农业大学学报》2014年第5期510-514,共5页Journal of Jilin Agricultural University

基　　金：科技部农业科技成果转化基金项目(2011G132B100006);农业部"948"项目(2011-G1-21);吉林省财政厅育种项目(201103);吉林省科技发展计划项目(20116030)

摘　　要：用同一诱导系JS6-1对6份不同血缘的F2代材料进行杂交诱导,调查统计了单倍体幼苗的存活数、单倍体植株的雌雄不协调数、授粉数及最终收获的单倍体穗数,对单倍体诱导率和结实率进行了研究。结果表明:不同玉米基础材料的单倍体诱导率和结实率存在较大差异,Q5的诱导率最高(12.8%),Q2的诱导率最低(8.7%)。不同基础材料的结实率Q3最高(54.4%),Q6最低(24.2%),最高结实率约是最低结实率的2.2倍。通过对单倍体结实率的研究发现,单倍体结实率与单倍体植株雌雄的协调性以及授粉成功率呈正相关,雌雄协调性对于单倍体结实率起到关键作用。With the same inducer JS6-1, six F2 materials of different strains were induced to inves？tigate number of haploid seedling survival, male and female incoordination number of haploid plants, number of pollination and number of final harvesting haploid ears. Induction rate and fertility rate of haploid in different maize materials were studied. The results were as follows：haploid induc？tion rate of different basic materials was greatly different, that of Q5 was the highest （ 12？8%） while that of Q2 was the lowest （ 8？7%） . Among different basic materials, fertility rate of Q3 was the highest （ 54？4%） , that of Q6 was the lowest （ 24？2%） , and the highest fertility rate was about 2？2 times of the lowest. The study on haploid fertility rate showed that haploid fertility rate was positively correlative with male and female coordination of haploid plants and rate of successful pollination, and male and female coordination played a key role in haploid fertility rate.

关 键 词：玉米 单倍体 诱导率 结实率 

分 类 号：S513.032[农业科学—作物学]