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软紫草二型花柱植株结实特性的比较研究
引用本文:冯建菊,谭敦炎.软紫草二型花柱植株结实特性的比较研究[J].西北植物学报,2006,26(12):2587-2591.
作者姓名:冯建菊  谭敦炎
作者单位:1. 新疆农业大学,林学院,乌鲁木齐,830052;塔里木大学,植物科技学院,新疆阿拉尔,843300
2. 新疆农业大学,林学院,乌鲁木齐,830052
基金项目:国家自然科学基金(90302004,30460029),新疆维吾尔自治区高校科研计划(XJEDU2004123)
摘    要:对软紫草二型花柱植株结实特性的观察结果表明:3个样地中长花柱植株的分枝数、每株花数及结实率均高于短花柱植株;在S1和S2中,长花柱植株的单株种子产量、结籽率和种子千粒重均高于短花柱植株;S3中长花柱植株的单株种子产量和结籽率高于短花柱植株,而种子千粒重却低于短花柱植株。统计分析显示,软紫草2种花型植株的结实特性在各样地中存在不同程度的差异,而同一花型植株的结实特性在不同样地间多表现出差异显著,说明软紫草的结实特性受花型和生境的双重影响,且生境比花型对其结实特性的影响更大。

关 键 词:软紫草  二型花柱  结实特性  结籽特点
文章编号:1000-4025(2006)12-2587-05
收稿时间:2006-03-17
修稿时间:2006-03-172006-11-10

Comparative Study of Fruit-setting Characteristics of Distyly Arnebia euchroma (Boraginaceae) Plants
FENG Jian-ju,TAN Dun-yan.Comparative Study of Fruit-setting Characteristics of Distyly Arnebia euchroma (Boraginaceae) Plants[J].Acta Botanica Boreali-Occidentalia Sinica,2006,26(12):2587-2591.
Authors:FENG Jian-ju  TAN Dun-yan
Institution:1 College of Forestry Sciences, Xinjiang Agricultural University, Urumqi 830052, Chinas;2 .College of Plant Science and Technology, Tarim University, Alar, Xiniiang 843300, China
Abstract:The observation of the fruit-setting characteristics of distyly Arnebia euchroma plants revealed that in three quadrats,the plants with long and middle-length styles had higher branch numbers,higher flower umbers per plant and high setting rates than the plants with short style;In quadrats 1 and 2,the plants with long styles had higher seed yields,higher seed-setting rates and higher 1 000-seed weights than the plants with short styles and in qudrat 3,the plants with mid length styles had high seed yields,and high seed-setting rates than the plants with short styles but lower 1 000-seed weights than the latter.Statistical analysis indicates that Arnebia euchroma plants with the two styles differed in seed setting among the different quadrats to a varying degree and the plants with same styles appeared to significantly differ in seed setting among the different quadrats,which indicating that the seed-setting characteristics of Arnebia euchroma were affected by its flower types and habitats and more by the latter.
Keywords:Arnebia euchroma  distyly  fruit-setting characteristic  seed-setting characteristic
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