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Morphological Characterization Of Tanzanian Sorghum

机译：坦桑尼亚高粱的形态特征

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摘要

Eleven qualitative and 26 quantitative morphological traits were used to determine the genetic relationships in 37 sorghum landraces from Tanzania and two from Zambia. The objectives of this study were to: determine the genetic relationships and thus establish the potential of the landraces as sources of breeding material for future sorghum improvement; and assess important agronomic traits for sorghum classification. Quantitative traits analysis revealed the potential of these landraces as a source of breeding material. Five principal components accounted for 53.64% of the total variability. Cluster analysis revealed two major distinct groups each with two subgroups. There were positive and significant correlations between days to maturity and leaf width (r = 0.477~(**)), plant height (r = 0.353~*), main stem diameter (r = 0.399~*) and leaves per main stem (r = 0.456~(**)). There was a high positive correlation for leaves per main stem with stem diameter (r = 0.621~(**)) and with leaf width (0.426~**)). Based on the correlation analysis, it was concluded that there was a possibility of breeding for positively-correlated traits in sorghum. Information collected by this study could be utilized by sorghum breeders for sorghum improvement and classification.
机译：利用11个定性和26个定量形态特征，确定了来自坦桑尼亚的37个高粱地方品种和来自赞比亚的2个高粱地方品种的遗传关系。这项研究的目的是：确定遗传关系，从而确定地方品种作为将来高粱改良育种材料的潜力；并评估高粱分类的重要农艺性状。数量性状分析揭示了这些地方品种作为繁殖材料的潜力。五个主要成分占总变异性的53.64％。聚类分析揭示了两个主要的不同组，每个组具有两个亚组。到成熟天数与叶片宽度（r = 0.477〜（**）），株高（r = 0.353〜*），主茎直径（r = 0.399〜*）和每个主茎的叶片（r）之间存在显着正相关。 r = 0.456〜（**））。每个主茎的叶与茎直径（r = 0.621〜（**））和叶宽（0.426〜**）之间存在高度正相关。基于相关性分析，可以得出结论，高粱正相关性状有繁殖的可能性。高粱育种者可以利用本研究收集的信息进行高粱改良和分类。

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