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首页> 外文会议>Second International Conference on Sustainable Agriculture for Food, Energy and Industry Vol.1 Sep 8-13, 2002 Beijing, China >Divergence Analysis in Rice as Influenced by Azotobacter chroococcum
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Divergence Analysis in Rice as Influenced by Azotobacter chroococcum

机译：绿球孢杆菌对水稻发散性的影响

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摘要

35 rice genotypes ― 18 indigenous types, 13 high yielding or recommended varieties and 4 stable mutant lines, were used for the comparative study on genetic divergence with two different approaches : 1) 21 days' old seedlings were inoculated with the bacterial strain ― Azotobacter chroococcum before transplanting, and 2) the seedlings were transplanted without inoculation. The study was made on the basis of 18 different characters including seed parameters and amylose content. Azotobacter chroococcum who able to influence the divergence analysis through micro-environmental change in root rhizosphere of rice genotypes. The reduction in number of clusters as well as reductidn in D~2 values for both intra-and inter-cluster distances, after seedling inoculation confirmed the influence of A. chroococcum. The responsiveness of the genotypes towards inoculum could also be confirmed through the change / variation in average performance of different clusters after seedling inoculation. Intercrossing amongst member genotypes of different clusters having high average performance of some local genotypes were expected to produce promising segregants for seed yield/plant in both the inoculated and uninoculated situation. But for larger and finer grains, inclusion of Kumargore : M and Masuri / Gobindobhog was expected to generate desirable recombinants / restructured genotypes.
机译：用35种水稻基因型― 18种本土型，13种高产或推荐品种和4个稳定的突变系进行比较研究，采用两种不同的方法：1）在21天大的幼苗上接种了细菌–绿脓杆菌（Azotobacter chroococcum）移栽前，以及2）移栽幼苗时不要接种。这项研究是基于18个不同的特性进行的，包括种子参数和直链淀粉含量。能够通过水稻基因型根际根际微环境变化影响发散分析的绿单孢细菌。接种苗后证实了球孢菌的影响，簇内和簇间距离的簇数减少以及D〜2值的减少。基因型对接种物的反应性也可以通过接种苗后不同簇的平均性能的变化/变化来证实。具有一些局部基因型的平均性能高的不同簇的成员基因型之间的交叉期望在接种和未接种的情况下都能为种子产量/植物产生有希望的分离子。但是对于更大或更细的谷物，预计加入Kumargore：M和Masuri / Gobindobhog会产生理想的重组体/重组基因型。

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