湖南农业大学学报（自然科学版）2017，Vol.43Issue(4)：394-400,7.DOI:10.13331/j.cnki.jhau.2017.04.009
龙眼与荔枝属间杂种植株生长与茎解剖结构特征及其相关性分析
The plant growth and characteristics of stem anatomical structure and its correlation analysis in genus hybrid of Dimocarpus longanandLitchi chincnsis
摘要
Abstract
Six genus hybrids and their parents (Dimocarpus longan variety 'Zaoshu' ×Litchichincnsis variety 'Ziniangxi') were used as test materials, the anatomical structures of xylem in root and stem were observed by manual microtomyand tissue segregation procedure, and the morphological characteristics, the organic nutrition and the photosynthetic rate of the tested materials were determined, and correlational analyses of the indexes were conducted. The results showed that the ratio of bark, ray width and vessel density of the hybrids were all less than those of the parents , and the vessel elements lengths of the hybrids were greater than those of the parents; except No 9 single plant, the diameter of vessel elements , the frequency of the vessel with tail in one end, plant height, stem diameter, leaf area, the length of internode were significantly greater than the parents, showed the obvious heterosis; in addition, the soluble, starch content, free amino acid content and the net photosynthetic rate of the strong plants of hybrids were greater than those of the weak plants; plant height, leaf area and internodespacing were high significant negative correlation ,with the bark rate and plant height was significant negative correlation with the bark rate; photosynthesis rate of hybrid was significant positive correlation with the ratio of total vessel area to xylem area, the diameter of vessel and the rate of vessel with tail in one end , but was negative correlation with the rate of vessel with tails in two ends; the soluble sugar content and starch content of the hybrid leaves were significant positive correlation with the ratio of total area to xylem area; the amino acid content was very significant or significant positive correlation with the diameter and length of the vessel element, but was negative correlation with the vessel density and ray width.关键词
荔枝/龙眼/属间杂种/解剖结构/生长Key words
Litchi chincnsis/Dimocarpus longan/genus hybrid/anatomical structure/growth分类
农业科技引用本文复制引用
张永福,刘成明..龙眼与荔枝属间杂种植株生长与茎解剖结构特征及其相关性分析[J].湖南农业大学学报（自然科学版）,2017,43(4):394-400,7.基金项目
国家自然科学基金项目(31660559) （31660559）
昆明学院科学研究项目(XJZZ1604) （XJZZ1604）
云南省高校特色生物资源开发与利用重点实验室开放基金项目(GXKJ201615) （GXKJ201615）
