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首页> 外文期刊>Canadian Journal of Pure and Applied Sciences >PHENOTYPIC INTRASPECIFIC VARIABILITY AMONG SOME ACCESSIONS OF DRUMSTICK (MORINGA OLEIFERA LAM.)
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PHENOTYPIC INTRASPECIFIC VARIABILITY AMONG SOME ACCESSIONS OF DRUMSTICK (MORINGA OLEIFERA LAM.)

机译：表皮种内种间变异的种内变异

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Phenotypic characterization of plant species is the basis for selection, conservation as well as improvement. Moringa oleifera (Lam.) is commo nly gro wn as multi-purpose medicinal and leafy vegetable crop in Nigeria. This stud y evaluated phenotypic intraspecific variations amo ng 40 accessions of M. oleifera collected from different agro-ecological zones. A total of 30 morphometric traits involving qualitative and quantitative vegetative, floral, fruit/pod and seed traits, seed set and germination percentages were co mbined for the analyses. Descriptive statistics, variance analysis, correlation coefficient, principal component analysis (PCA) and cluster analysis (CA) were used to evaluate the intraspecific variability. The accessions showed marked differences in floral, fruit pod and seed characters analyzed. Accessions edN037 (71 days), osN024 (73 days), ogN028 (74 days), oyN003 (75 days) and abN059 (76 days) were identified as early maturing accessions. Correlation coefficients r ≥ 0.70 were high and significant for reproductive characters. The PCA and CA generated similar results. The first five principal component axes explained 61.40% of the total variation with PC1 (23.92%) and PC2 (14.19%) contributing 38.11% of the total variation. The CA showed that the degree of intraspecific similarity was high (66.82%) based on Euclidean similarity index. Nevertheless, fo ur clusters were formed indicating intraspecific phenotypic dissimilarity among the 40 accessions especially with the separation of accessions that were collected from similar environments. The phenotypic variations could be explored for utilization, conservation and for future genetic improvement by selection of accessions with pro mising agronomic characters.
机译：植物种类的表型表征是选择，保存和改良的基础。辣木（Lam。）在尼日利亚作为多用途的药用和多叶蔬菜作物而普遍种植。该研究评估了从不同农业生态区收集的40个油橄榄分枝杆菌的表型种内变异。总共分析了30个形态，性状，包括定性和定量营养，花卉，果实/荚果和种子性状，种子结实率和发芽率。描述性统计，方差分析，相关系数，主成分分析（PCA）和聚类分析（CA）用于评估种内变异性。这些种质在分析的花，果荚和种子性状上显示出显着差异。鉴定为edN037（71天），osN024（73天），ogN028（74天），oyN003（75天）和abN059（76天）的种是早熟种。相关系数r≥0.70对于生殖性状而言很高并且很显着。 PCA和CA产生了相似的结果。前五个主成分轴解释了总变化的61.40％，其中PC1（23.92％）和PC2（14.19％）贡献了总变化的38.11％。 CA显示，基于欧几里得相似指数，种内相似度很高（66.82％）。然而，形成了四个簇，表明40个种之间的种内表型不相似，尤其是从相似环境中收集到的种之间的分离。可以通过选择有前途的农艺性状的种质，探索表型变异的利用，保存和未来的遗传改良。

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