摘要
在温室盆栽条件下，研究了不同碱化度土壤中盐生植物芨芨草（ＡｃｈｎａｔｈｅｒｕｍｓｐｌｅｎｄｅｎｓＮｅｖｓｋｉ）和非盐生植物高羊茅（ＦｅｓｔｕｃａｅｌａｔａＫｅｎｇ）生长和丛枝菌根（ＡＭ）的发育状况。结果表明：这两种植物均能被ＡＭ菌感染；碱化度小于１０％的非盐碱土壤中高羊茅比芨芨草的菌根侵染率高。而碱化度大于２０％的盐碱土壤中，后者的菌根侵染率则显著大于前者。碱化度越高的土壤对菌根发育的抑制作用越大、菌根发育越差。不同碱化度土壤中菌根生长发育状况和功能因ＡＭ菌种的不同而存在差异，其中以Ｇｌｏｍｕｓｍｏｓｅａｅ３２和Ｇｉｇａｓｐｏｒａｒｏｓｅａ较耐盐碱。接种ＡＭ菌能显著提高芨芨草和高羊茅的生长量。
Effects of percentage of exchangeable sodium in soil on status of mycorrhizal development
and growth of halomorphic Achnatherum splendens and nonhalomorphic Festuca elata. The
results showed that both kinds of plants were able to be colonized by arbuscular mycorrhizal
(AM) fungi. In soline-sodic soil mycorrhizal colonization status ofAchnatherum splendens, was
better than that of Festuca elata while in normal soil it showed opposite. The higher
percentage of exchangeable sodium (PES) in soil the more inhibition occurred to the
colonization. There were differences in mycorrhizal development and function of AM fungi in
soil with different PES. Glomus mosseae 32 and Gigaspora rosea showed stronger tolerance
to soline-sodic soil . Growth of Festuca elata and Achnatherum splendens was increased by the
inoculation with AM fungi.
出处
《莱阳农学院学报》
1999年第2期79-83,共5页
Journal of Laiyang Agricultural College
基金
国家自然科学基金
山东省自然科学基金
关键词
菌根
发育
盐碱土壤
高羊茅
芨芨草
arbuscular mycorrhizal fungi
soline-sodic soil
Festuca
elata Achnatherum splendens
