EXTERNAL AND INTERNAL-P REQUIREMENTS OF PLANT-SPECIES DIFFERING IN THEIR MYCORRHIZAL DEPENDENCY

被引：11

作者：

MANJUNATH, A ^{[1
]}

HABTE, M ^{[1
]}

机构：

[1] UNIV HAWAII,DEPT AGRON & SOIL SCI,1910 E W RD,HONOLULU,HI 96822

来源：

ARID SOIL RESEARCH AND REHABILITATION | 1992年 / 6卷 / 04期

关键词：

BRASSICA-NIGRA; GLOMUS-AGGREGATUM; LEUCAENA-LEUCOCEPHALA; LEUCAENA-RETUSA; PINNULE-P CONCENTRATION; SESBANIA-GRANDIFLORA; SESBANIA-PACHYCARPA; SOIL SOLUTION-P; VAM DEPENDENCY;

D O I：

10.1080/15324989209381322

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Species of plants distinctly differing in their dependence on vesicular-arbuscular mycorrhizal (VAM) symbiosis were grown in potted soil at soil solution P levels ranging from 0.003 to 0.6 mg L-1. Vesicular-arbuscular mycorrhizal colonization levels generally decreased with increase in soil solution P concentrations, the degree of decrease being more pronounced with decrease in VAM dependency of host species. Mycorrhizal inoculation effect (MIE) disappeared at a much lower soil solution P concentration in the marginally to moderately VAM dependent Sesbania species compared to MIE noted in Leucaena leucocephala, a very highly VAM-dependent species. Under nonmycorrhizal condition, the former species exhibited lower external and higher internal P requirement for dry matter production compared to the latter species.

引用

页码：271 / 284

页数：14

共 27 条

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