PHOSPHORUS SUPPLY, MYCORRHIZAL INFECTION AND PLANT OFFSPRING VIGOR

被引：40

作者：

LEWIS, JD ^{[1
]}

KOIDE, RT ^{[1
]}

机构：

[1] PENN STATE UNIV,DEPT BIOL,UNIVERSITY PK,PA 16802

来源：

FUNCTIONAL ECOLOGY | 1990年 / 4卷 / 05期

关键词：

D O I：

10.2307/2389738

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Documents the effects of phosphorus supply to Sinapis alba (Brassicaceae) and of mycorrhizal infection and P supply to Abutilon theophrasti (Malvaceae) on offspring vigour. Both maternal P supply and mycorrhizal infection of maternal plants had significant effects on seed weight, seed N content and seed P content but did not influence emergence rate. In all but a few cases, maternal P supply did not significantly affect growth or root:shoot allocation of offspring in either species. Mycorrhizal infection of Abutilon maternal plants, however, did have significant effects on offspring vigour as measured by shoot weight, root weight, height and leaf area. Some of the variation in these variables (c25%) could be attributed to variation in total seed P content, but mycorrhizal infection may have influenced offspring vigour through effects on variation in P fractions within the seed. -from Authors

引用

页码：695 / 702

页数：8