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首页> 外文期刊>Current Journal of Applied Science and Technology >Genetic Divergence Analysis of Rice Genotypes under Salt Stress Environment
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Genetic Divergence Analysis of Rice Genotypes under Salt Stress Environment

机译：盐胁迫环境下水稻基因型的遗传分解分析

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The present investigations were conducted in randomized block design with three replications within the net house of the department of PMBGE, A. N.D.U.A.T, Kumar Ganj, Ayodhya to estimate the genetic divergence under normal and salt stress conditions involving 20 rice genotypes during Kharif 2018-19, on the basis of relative parameters of D~(2) values, the clustering pattern of 20 rice genotypes under normal and salt stress conditions were grouped into five non-overlapped clusters. Under normal condition, Cluster III having highest 7 rice genotypes, Cluster II having 5 genotypes, cluster V having 4 genotypes and IV having highest 3 rice genotype. Cluster I having only one genotype. Under saline condition, Cluster I having highest rice 6 genotypes, cluster III having 5 genotypes and cluster IIandIV having 4 genotypes respectively. Cluster V having only one genotype. It means the genetic similarity was found in the genotypes were expressed within the cluster and the pattern of distribution of genotypes in various clusters exhibited that topographical diversity wasn't associated with ancestral diversity as genotypes of same countryside were grouped into different cluster and vice-versa. The highest inter cluster distance was recorded between cluster 2 and cluster 5 (26108.030) followed by between cluster 1 and cluster 5 (18550.010), cluster 3 and cluster 5 (15231.860), cluster 4 and cluster 5 (5335.860) in normal condition and in saline condition the maximum inter cluster distance was existed between cluster 4 and cluster 5 (2344.091) followed by between cluster 3 and cluster 5 (2067.610), cluster 2 and cluster 5 (1447.564), cluster 1 and cluster 5 (1238.095). The results showed extensive variation from one cluster to other in respect of cluster means for all parameters, which represented that genotypes having distinctly different mean performance for various characters were reported into different clusters.
机译：目前的调查是在随机块设计中进行的，在PMBGE，Anduat，Kumar Ganj，Ayodhya的Net House内，Ayodhya在Ayodhya的Net House内进行了三种复制，以估算在Kharif 2018-19期间涉及20米基因型的正常和盐胁迫条件下的遗传分歧D〜（2）值相对参数的基础，将正常和盐胁迫条件下的20种水稻基因型的聚类模式分为五个非重叠簇。在正常情况下，具有最高7种水稻基因型的簇III，具有5个基因型的簇II，具有具有最高3种基因型的4种基因型和IV的簇v。群集我只有一种基因型。在盐水条件下，群体I具有最高水稻6基因型，分别具有5种基因型和簇IIANDIV的簇III分别具有4个基因型。群体v只有一种基因型。意味着在基因型中发现遗传相似性在群体内表达，各种簇中基因型的分布模式表现出地形多样性与祖先多样性无关，因为同一农村的基因型分为不同的集群，反之亦然。在集群2和群集5（26108.030）之间记录最高的群集距离，然后在群集1和群集5（18550.010）之间，集群3和群集5（15231.860），群集4和群集5（5335.860）在正常情况下盐水条件最大群集距离是在集群4和群集5（2344.091）之间存在，然后在集群3和群集5（2067.610）之间，集群2和簇5（1447.564），集群1和群集5（1238.095）之间。结果表明，对于所有参数的集群手段，从一个聚类到其他参数的群体变化，这表示将具有明显不同的各种特征平均性能的基因型被报告为不同的簇。

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