西北师范大学学报（自然科学版）Issue(1)：87-90,96,5.
入侵植物五爪金龙有性生殖与土壤养分关系的研究
Correlation relationship betw een sexual reproduction and soil nutrient of invasive species Ipomoea cairica
摘要
Abstract
By using statistical data of number of flowers and seeds , seed rate , soil nutrient in the 10 populations of Ipomoeacairica ,the correlation between sexual reproduction and soil nutrient of invasive species Ipomoea cairica was searched by regression analysis method . The result showed that number of flowers was moderate negatively related to soil organic matter (SOM ,r= -0•594);number of seeds inversely related to soil organic matter (r= -0•801) , soil water content (r= -0•656) and available nitrogen (AN )/available phosphorus (AP ,r= -0•665);seed rate and AN , SOM , AN/AP have the inverse correlation relations obviously . Based on the above , the conclusion can be drew that under higher soil nutrient contents condition , I•cairica tend to nutritive grow th and clonal propagation , w hen soil nutrient deficiency , the plant will allocate greater resources to sexual reproduction so that obtain more opportunity for future invasion .关键词
五爪金龙/有性生殖/土壤养分Key words
I pomoea cairica/sexual reproduction/soil nutrient分类
农业科技引用本文复制引用
陈丹生,马瑞君,王桔红..入侵植物五爪金龙有性生殖与土壤养分关系的研究[J].西北师范大学学报（自然科学版）,2015,(1):87-90,96,5.基金项目
国家自然基金资助项目（31470021）；广东韩山师范学院科研项目 （）
