Comparative Study on the Dwarfing Pre-selected Indices of Pear Germplasms with Different Growth Potentials
不同生长势梨种质矮化预选指标的比较研究(摘要)(英文)作者机构：延边大学农学院吉林龙井133400
出 版 物：《Agricultural Science & Technology》 (农业科学与技术（英文版）)
年 卷 期：2009年第10卷第6期
页 面：108-110,143页
学科分类：09[农学] 0902[农学-园艺学] 090201[农学-果树学]
基 金：Supported by National Natural Science Foundation(30560091 30960231)~~
主 题：Pear Dwarfing Pre-selected indices
摘 要：[ Objective] The aim of this study was to provide a theoretical basis for breeding selection, matching parents and the identification of traits during early period. [ Method ] With Shanli （ Pyrus ussuriensis Maxim） , S2 × Shanli （vigorous）, S2 x ShanU （dwarfing）, S2, super-dwarfing germplasm as the matedais, the dwarfing traits of each germplasm were identified by indices including leaf stomata density, branch-cortex ratio, leaf thickness, palisade tissue thickness, paisade-spongy ratio and vessel density. [Result] Among five kinds of pear germplasms, Shanli with strong growth potential had the smallest branch-cortex ratio, leaf thickness, palisade tissue thickness and palisade-spengy ratio, but the largest stomata density and vessel density. On the contrary, super-dwarfing germplasm with weak growth potential had the largest branch-cortex ratio, leaf thickness, palisade tissue thickness and palisade-spongy ratio, but the smallest stomata density and vessel density. There was a difference in stomata density, branch-cortex ratio, leaf thickness, palisade tissue thickness, palisade-spongy ratio and vessel density for every germplasm. [ Conclusion] Stomata density, branch-cortex ratio, leaf thickness, palisade tissue thickness, palisade-spongy ratio and vessel density can be used as indices of identification for pear growth potential in early period.
维普期刊数据库
同方期刊数据库