论文部分内容阅读
对16份罗望子种质资源进行了植物学性状比较研究,结果表明:不同地理来源的罗望子在植株、叶片、花、果实、种子等植物学形态特征上均存在不同程度的差异性。主成分分析表明:冠幅、冠型、树势、复叶主轴粗度、小叶长、花序长度、花序宽度、花冠直径、萼片长宽比、萼筒宽度、萼筒深度、果肉厚、果实曲线长度、纤维数、纤维重为罗望子的种质资源植物学多样性的主要指标,通过筛选初步将叶长、叶宽、花序长度、花序宽度、花冠直径、单果重、果实直线长度、果实曲线长度、果肉厚度、纤维数、果肉剥离难易程度、种子数量这几个性状作为罗望子种质资源植物学描述评价的代表性状,便于罗望子种质资源的描述和评价;通过聚类分析,16份材料分为6大类群,为罗望子种质种质资源的遗传多样性分析、植物学性状描述规范的制定和新品种的选育奠定基础。
The comparative study on the botanical characters of 16 tamarind germplasm resources showed that there were some differences in the botanical morphology of plants, leaves, flowers, fruits and seeds from different geographical origins. The principal component analysis showed that the crown, crown, tree vigor, spindle diameter, leaflet length, inflorescence length, inflorescence width, corolla diameter, sepal length-width ratio, calyx tube width, calyx tube depth, pulp thickness, Length, fiber number, and fiber weight were the main indexes of botanical diversity of tamarind resources. The leaf length, leaf width, length of inflorescence, width of inflorescence, diameter of corolla, weight of fruit, linear length of fruit, fruit curve Length, thickness of flesh, number of fibers, ease of stripping of flesh and the number of seeds as the representative traits of botanical description and evaluation of germplasm resources of Tamarindus indicus to facilitate the description and evaluation of tamarind germplasm resources. By cluster analysis, Sixteen species were divided into six groups, which laid the foundation for genetic diversity analysis of tamarind germplasm resources, formulation of botanical trait description and selection of new varieties.