基因型和环境条件对葡萄芽形态的影响

D. Dinu, D. Bianchi, L. Mamasakhlisashvili, C. Quarta, L. Brancadoro, D. Maghradze, M. Cardinale, L. Rustioni
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引用次数: 6

摘要

葡萄藤茎部形态在地形学和生长对环境胁迫的适应方面得到了广泛的研究。然而,关于基因型和生长条件对营养生长的相对贡献和相互作用知之甚少。在这项工作中,研究了7个葡萄品种在三个地理距离较远的葡萄标本中,以最大限度地提高样品之间的基因型和环境差异。研究了叶片面积、茎叶柄直径和长度的变化规律。这些测量允许计算衍生参数来描述元素之间的比例。尽管所研究的大多数参数对两个因素(品种和生长条件)都有显著的区别,但根据它们的相对方差解释,可以确定每个因素中最有希望的参数。事实上,基因型和环境在研究参数中的作用呈负相关。低互作效应表明植物行为具有稳定性,证实了利用营养描述进行品种鉴别和生长条件描述的可能性。未来的研究将根据这里描述的茎部形态的表型变异来制定具体的指标。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of genotype and environmental conditions on grapevine (Vitis vinifera L.) shoot morphology
Grapevine shoot morphology is widely studied for both ampelography and growing adaptation to environmental stresses. However, few is known concerning the relative contribution and interactions of the genotype and of the growing conditions to the vegetative growth. In this work, seven grapevine cultivars were studied in three geographically distant ampelographic collections to maximize the genotype and environment differences among samples. Phytomers were studied concerning the leaf area and the stem and petiole diameters and lengths. These measurements allowed the calculation of derivative parameters to describe the proportions among elements. Despite most of the studied parameters significantly discriminated both factors (cultivar and growing conditions), it was possible to identify, for each one of them, the most promising parameters based on their relative variance explanation. In fact, a negative correlation was observed between the roles of genotype and environment among the studied parameters. The low interaction effect suggested a stability in the plant behaviors, confirming the possibility to use vegetative descriptions for both cultivar discrimination and growing conditions. Future studies will be performed to develop specific indexes based on the phenotypical variability of shoot morphology described here.
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