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- Sterile line hybrid 不育化杂交种
- It was named AB91.Jiyan 5 is a sweet pepper F1 hybrid,obtained from crossing the genic male sterile line AB91 with inbred line JR. 以AB91为母本,以优良自交系JR为父本,选育成早熟、抗病、高产、优质的甜椒一代杂种冀研5号。
- Positive dots appeared in nuclear DNA and chloroplast DNA of D-type sterile line and its hybrid F1,but did not appear in the receptor. 实验结果表明:D型不育系及杂种F1核DNA和叶绿体DNA点杂交均呈阳性反应,而受体无阳性反应。
- At the points of yield of hybrid seeds production and natural pollination of sterile line, ASL was notably higher than HTL and CMS, and lowed the cost to large extent. 在杂交制种和不育系自然授粉的产量方面核全不育系明显优于核两型系和质不育系,从而使杂种成本大幅降低。
- Sunflower (Helianthus annuus L.) is one of four main oil crops in the world and its hybrid production depends on three lines (sterile line, maintainer line and restoring line). 向日葵杂种生产采用三系配套系统完成。
- New hybrid lines were selected using the new restoring lines crossbred with different sterile lines. 新恢复系与不同的不育系配制成不同类型的杂交稻组合。
- The general combining ability of Zheng shan97A and Xieqin Zao A is high . They are main sterile lines for breeding of late hybrid rice combinations. 珍汕97A、协青早A的一般配合力高,是配制迟熟杂交稻组合的主体不育系。
- Observations on the Morphological Structure of Style and Stigma of Male Sterile Line of Medicago varia Martin. Cv. 苜蓿雄性不育系花柱与柱头形态结构观察研究。
- Inheritance and Utilization of Recessive Genic Male Sterile line ZWA in Brassica Napus L. 甘蓝型油菜隐性核不育材料ZWA的遗传利用研究。
- Alloplasmic male sterile line 034A was breeded by using method of distant hybridization and backcross. 通过萝卜远缘杂交创建不育源,再经过回交转育而选育出异源胞质不育系034A。
- Among sterile lines 880A is a better A line, though it is susceptive in smut. 不育系中,880A表现较好,但是易感黑穗病,需要改良。
- Title: Anatomical Observations of Anther Development of NCa, a Cytoplasmic Male Sterile Line in Rapeseed( Brassica napus L. 关键词:甘蓝型油菜;细胞质雄性不育;花药发育;花粉败育;细胞解剖学
- The results showed that t h e frequency of chromosomal variation of the sterile line was 18%,and that of the receptor was 0.8%. 结果发现,不育变异体花粉母细胞染色体异常比率达到18%25,而受体花粉母细胞染色体异常比例为0.;8%25,二者存在明显差异。
- Three indica male sterile lines, K-qing A, K19A, and K17A, have been bred successively by using sterile plants from the progeny of a hybrid cross between japonica and indica as cytoplasmic male sterile (CMS) gene donor. 利用粳籼杂交后代出现的不育株作细胞质雄性不育供体,先后育成了K青A、K19A和K17A等籼型不育系。
- A doubled haploid( DH) population in three lines hybrid wheat was established by anther culture. The population was composed of21 progenitive plants and22 sterility plants. 用花药培养法构建了1个由43个单株组成的“三系”杂种小麦单倍体加倍(DH)体;其中21株是可育的;22株不育.
- The seed-setting rate of inbreed in bagging of the seven sterile line is zero, thg rate of sterile plant and sterile ability is 100%steadily. 这7个不育系的套袋自交结实率均为0,不育株率和不育度均稳定地达到100%25;
- Male sterile line mainly came from the natural mutant, and then transformed sterile line and maintainer line by backcross. 其胞质雄性不育源大多来自自然突变,后经回交转育出不育系和保持系。
- The results indicated that genetic background was vulnerable among rice male sterile lines in large scale.It suggested that the heterosis were limited for these CMSs in hybrid breeding. 24份细胞质雄性不育系聚类分析结果表明,目前在生产中应用的细胞质雄性不育系遗传背景比较单一,杂种优势利用潜力有限。
- The co mbining ability of S10 and its combinations was tested.The transferring me thod of genetic male sterile line was discussed. 对育成的雄性不育系S10进行了配合力测定,并对所配组合做了品比试验。
- The kinetin(KT)content was low in four out of male sterile lines tested. 在4/5的保持系中激动素含量低于保持系。