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   杂交水稻亲本 的翻译结果: 查询用时:0.021秒
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杂交水稻亲本     
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  parents of hybrid rice
     Those primers detected 102 alleles among 33 parents of hybrid rice.
     在以上33份杂交水稻亲本材料间共检测出102个等位基因(alleles),平均每对SSR引物可检测到5.1个等位基因。
短句来源
     Breeding for Parents of Hybrid Rice with Maize pepc Gene
     转玉米pepc基因的杂交水稻亲本的选育
短句来源
     Identification by RAPD Analysis and Studies on Genetic Relationship of Main Parents of Hybrid Rice in China
     我国主要杂交水稻亲本的RAPD鉴定及遗传关系研究
短句来源
     By analyzing genetic relationship between Ning 2A and other parents of hybrid rice, it was found that Ning 2A possessed genetic composition of indica, which explained the reason that Ning 2A have stronger affinity with indica at molecular levels.
     通过与其他广泛应用的杂交水稻亲本材料的遗传关系分析 ,发现宁 2 A/ B具有籼稻的遗传成分 ,从而在分子水平上解释了该材料与籼稻亲和性较高的原因。
短句来源
     On the basis of the isozyme variation detected by starch and polyacrylamide gel electrophoresis,the genetic difference among the tested rice cultivars (O. sativa L.) including 17 parents of hybrid rice, 3 new plant type lines and 22 Nuda and javanica cultivars was analyzed to study the relation of temperate japonica to Nuda and javanica and to explore the possibility of utilizing the genetic difference detected with isozyme markers in hybrid rice breeding.
     利用淀粉凝胶和聚丙烯酰胺凝胶电泳显示的同工酶差异 ,分析 17个杂交水稻亲本、3个新株型株系和2 2个光壳稻、爪哇稻品种的遗传差异 ,研究光壳稻和爪哇稻及其与温带粳稻之间的关系 ,探索同工酶标记水稻亲本遗传差异在杂交稻育种中利用的可能性。
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  hybrid rice parental
     Introduction of Insect Resistance Gene and Lysine-rich Gene into Super Hybrid Rice Parental Line 1826 through Agrobacterium tumefaciens-mediated Trasnformation
     利用农杆菌介导法将抗虫基因和高赖氨酸蛋白基因导入超级杂交水稻亲本材料1826中
短句来源
  hybrid rice parents
     Effect of hybrid rice parents on F2 rice quality
     杂交水稻亲本对F_2米质性状的影响
短句来源
     Effects of Seedling Age at Transplanting on Heading Time of Hybrid Rice Parents
     不同移栽秧龄对杂交水稻亲本抽穗期的影响
短句来源
     Seedling growing status, nutritional conditions and the cultivation measure have the varying degree influence on the development transformation of hybrid rice parents, promoting or postponing the heading date of the parents.
     水稻的自身的营养状况和栽培措施对杂交水稻亲本的发育转变产生不同程度的影响,促进或延迟亲本的抽穗期。
短句来源
     Using 7 maintainer lines and 9 restorer lines as the materials, the genetic difference of hybrid rice parents and its relation to F1 heterosis were studied through principal component analysis and cluster analysis of 11 major agronomic characters.
     以目前生产上大面积应用和新育成的16个籼型三系杂交水稻亲本为材料,根据11个主要农艺和经济性状进行主成分分析和聚类分析,以马氏距离为指标,研究了杂交水稻亲本间遗传差异的状况及其与杂种优势的关系。
短句来源
     The microsatellite marker or SSR analysis was conducted, using six two-line hybrid rice parents including (Pei′ai) 64S and five restorer lines as the materials. The results showed that 47 of 60 primer pairs could amplify distinct bands among all parents.
     以培矮 64S和 5个恢复系等 6个两系杂交水稻亲本的DNA为模板 ,进行微卫星分子标记 (SSR)分析 ,结果表明 ,在 60对微卫星引物中有 47对在 6份材料中均有清晰带型扩增产物。
短句来源
  rice parental
     Introduction of Insect Resistance Gene and Lysine-rich Gene into Super Hybrid Rice Parental Line 1826 through Agrobacterium tumefaciens-mediated Trasnformation
     利用农杆菌介导法将抗虫基因和高赖氨酸蛋白基因导入超级杂交水稻亲本材料1826中
短句来源
     1826 is an elite super rice parental line but with poor resistance to Nilaparuata lugens (Stal) and with low lysine content.
     1826是一个优良的超级杂交水稻亲本材料,但抗褐飞虱能力低,必需氨基酸赖氨酸的含量低。
短句来源

 

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  parents of hybrid rice
About two-thirds as many alleles were observed in cultivars as in landraces; another two-thirds of the alleles in the cultivar group were found in modern elite cultivars or parents of hybrid rice.
      
  rice parental
In both plant and seed morphology, the hybrid (SH6) was distinct from its rice parental cultivar, as well as from the wild donor species, Z.
      
Based on differential digestion by the isoschizomers, it is estimated that 15.9% of CCGG sites are either fully methylated at the internal Cs and/or hemi-methylated at the external Cs in the rice parental cultivar Matsumae.
      
Genomic rearrangements in the RILs, as being reflected by loss of rice parental bands and gain of novel bands, are marked by triangles.
      
  其他


Respiration is an important metabolism in plants.The relation between cytochrome oxidase, respiration intensity and rice hiterosis is investigated. The results showed that the the cytochrome oxidase bas a certain complementary effect in the parents of hybrid which is of hiterosis, And also the respiration intensity is strong in the hybrid seedling.These indications are possible to be a basis of predicting hiterosis when the parents are selected.

呼吸作用是植物体内一个很重要的代谢过程,本文研究了水稻杂种优势与细胞色素氧化酶和呼吸强度的关系。实验结果表明,具杂种优势的水稻其亲本细胞色素氧化酶有一定的互补效应,同时,水稻杂种幼苗的呼吸强度也较强。这些指标有可能作为杂交水稻亲本选配时杂种优势预测的初步依据。

We obtained 36 hybrid combinations of hybrid rices by partial diallel crosses, using 4 male sterile lines and 9 restoring lines. The amylose content (a. c) of grain for 108 plots (3—replications was tested to aim at studying general combining ability (g. c. a) and specific combining ability (s. c. a) on a. c of hybrid rices, for the purpose of offering certain references for parent selection and combining mating of hybrid rices. The results show that there exist vastly significant variations among the parents...

We obtained 36 hybrid combinations of hybrid rices by partial diallel crosses, using 4 male sterile lines and 9 restoring lines. The amylose content (a. c) of grain for 108 plots (3—replications was tested to aim at studying general combining ability (g. c. a) and specific combining ability (s. c. a) on a. c of hybrid rices, for the purpose of offering certain references for parent selection and combining mating of hybrid rices. The results show that there exist vastly significant variations among the parents and the combinations, for the effect on amylose content of F_1 grain.The g. c. a of zhenshan 97 A sterile line and minghui 63 restoring line Were better, but the s. c. a for Xian—you 63 was the best. Generally speaking, the a. c of their F_1 Was lower (higher) if the g. c. a of two parents were better (worse). But because of the influence between parents, this phenomenon does not appear in all the combinations. So in the cause of parent selection and combining mating of hybrid rice breeding, both the charaters and g. c. a effect of parents showld be considered, especially restoring lines, and the s. c. a of hybrid combination also needs equal consideration.

选取杂交水稻4个不育系和9个恢复系按不完全双列杂交配组得到36个杂交组合,测定了108个小区(3次重复)稻米的直链淀粉含量,旨在分析杂交水稻亲本直链淀粉含量的一般配合力(gca)和组合的特殊配合力(sca),以期为优质杂交稻米亲本选育和组合选配提供一定的参考依据。结果表明:对F_1稻米直链淀粉含量的影响,亲本间和组合间均存在显著或极显著差异。亲本不育系珍汕97A和恢复系明恢63的gca最好,而sca最好的是汕优63。gca低(高)的两亲本,其F_1稻米的直链淀粉含量一般也低(高)。但由于亲本间存在相互作用,这一现象并不存在于所有组合。在优质杂交稻米亲本选育和组合选配过程中,既要注意亲本(特别是恢复系)本身的特性和一般配合力效应,也要考虑组合的特殊配合力效应。

The Biological characteristics of three parents (Wanhui 9, Dangxuanwan 2A and 80—4A)of japonica hybrid rice were studied with sowing by different seasons in the field. The main results were as follows: (1) The days from seeding to heading of Wanhui 9, Dangxuanwan 2A and 80—4A were 100—106, 91—97 and 93—98days, respectively; the leaves of their main stems were 16±1, 16±0.5 and 16±0.5, respectively. (2) The flowering peak time of 80—4A was indentical to that of Wanhui 9 in great degree 80—4A had advantage of hybrid...

The Biological characteristics of three parents (Wanhui 9, Dangxuanwan 2A and 80—4A)of japonica hybrid rice were studied with sowing by different seasons in the field. The main results were as follows: (1) The days from seeding to heading of Wanhui 9, Dangxuanwan 2A and 80—4A were 100—106, 91—97 and 93—98days, respectively; the leaves of their main stems were 16±1, 16±0.5 and 16±0.5, respectively. (2) The flowering peak time of 80—4A was indentical to that of Wanhui 9 in great degree 80—4A had advantage of hybrid seed production. (3) The flowering peak time of Dangxuanwan 2A was obviously later than that of Wanhui 9,It would be difficult to apply Dangxuanwan 2A to hybrid seed production. (4) Flowering time of the three parents were affected by meterologic factors and culture measures. (5) It was suggested that arranged suitable seeding date of hybrid seed production to Dangxuanwan 2A/Wanhui 9 and 80—4A/Wanhui 9 in this paper.

对三个粳型杂交水稻亲本皖恢9号、当选晚2号A和80—4A进行了分期播种试验和开花习性观察。结果表明,皖恢9号、当选晚2号A、80—4A的抽穗日数分别为100—106天、91—97天、93—98天,主茎叶片数分别为16±1叶、16±0.5叶、16±0.5叶,80—4A与皖恢9号的花时基本吻合,利于高产制种。当选晚2号A花时明显著落后于皖恢9号,不利于高产制种;气象因子及一些栽培措施对三亲本花时有所影响。本文还提出了当选晚2号A/皖恢9号、80—4A/皖恢9号制种的合理播期安排。

 
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