籼型光周期敏感核不育水稻的选育

来源 :作物杂志 | 被引量 : 0次 | 上传用户:meiwanmeiliao2
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
1983~1985年以粳型光敏感核不育水稻农垦58为母本,98个早、中、晚籼稻品种为父本杂交育成了籼型光敏感核不育水稻1系(中稻类型)和2系(早稻类型)。在选育过程中,通过多做组合,扩大F_2代群体,严格鉴定选择等方法,克服了杂种后代分离大,有利变异少,籼粳杂交不育与核不育难以区分的困难,并在较低世代育成了稳定的矮稈籼型光敏感核不育水稻。实践证明,光敏感核不育基因可以导入籼稻和粳稻之中,其不育性与亲本的感光性无关,能独立遗传,只要在长日照下即能表达。 From 1983 to 1985, the first line (middle-rice type) and the second line (indica-sensitive genic male sterile line) of indica rice with photo-sensitive genic male sterile rice Nongken 58 as female parent and 98 early, middle and late indica rice as male parent were bred Department (early rice type). In the process of breeding, it is difficult to distinguish between indica-japonica CMS and nuclear infertility through more combinations, expanding F_2 generation population, and strictly identifying and selecting methods to overcome the problems of large segregation of offspring, less favorable mutation, The lower generation bred into a stable dwarf indica-type photo-sensitive nuclear sterile rice. Practice has proved that light-sensitive nuclear sterile genes can be introduced into indica and japonica, its infertility has nothing to do with the sensitivity of the parent, can be independently inherited, as long as it can be expressed in the long sunshine.
其他文献
一、胰腺癌外周血miRNAs表达谱的建立及hsa-miR-125a-5p在胰腺癌中的表达及功能的初步验证   胰腺癌是一种恶性程度高、预后极差的消化系统恶性肿瘤,5年生存率约为6%。因胰
Riding to the highest ground in the vicinity, they obtained a splendid view of the stream, outlined by the foliage of thepecan groves that lined its banks as fa
期刊
Attention is asymmetric(不均匀的) at times. It can flow out of the system, as when the living pay attention to the dead. I was very painfully reminded of this j
期刊
I woke up to a cold and empty room full of nothing but wood and artistic drawings of people I didnt know. The room was gigantic, the ceilings must have been 150
试验于1986年在本所进行。设6月7、12、17日三个播期,亩播12.5公斤,每个播期分7月12、17、22日三个插期,共9个处理。重复三次,随机区组排列,小区面积0.03亩。试验结果如下:
众所周知,汽车制造业是伴随现代工业的发展而发展起来的。随着市场经济的发展和不断完善,汽车制造业也经历了由单一品种、大批量的简单生产方式向多品种、小批量的复杂生产
Ive leed that you cannot make someone love you. All you can do is be someone who can be loved. The rest is up to them. Ive leed that no matter how much I care,
期刊
Two roads diverged in a yellow wood,And sorry I could not travel both rnAnd be one traveler, long I stood And looked down one as far as I could rnTo where it be
期刊
研究背景:蚊是一类重要的医学昆虫,不仅叮咬骚扰人类,同时还可能传播多种疾病,如疟疾、丝虫病、登革热、流行性乙型脑炎、黄热病等,对人类的健康产生极大的危害。蚊媒病流行范围
1986年我们在蒙城县进行了10万亩小麦生长后期喷施三十烷醇示范试验,取得了平均每亩增产20.2公斤的成绩。为了进一步验证三十烷醇对小麦的增产效应,在蒙城县委、县政府的支