ALLELOPATHIC POTENTIAL OF SALSOLA-KALI L AND ITS POSSIBLE ROLE IN RAPID DISAPPEARANCE OF WEEDY STAGE DURING REVEGETATION

被引:28
作者
LODHI, MAK
机构
[1] Department of Biology, Forest Park College, St. Louis, 63110, Missouri
关键词
Allelopathy; germination; mine-spoil; nutrient; physioecology; phytotoxins; Salsola kali; succession; weedy stage;
D O I
10.1007/BF00987928
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Salsola kali L. is one of the species that invades during early successional stages on mine-spoil material, but tendś to disappear rapidly from the weedy stage. What controls its rapid disappearance from the weedy stage becomes a logical question. Salsola was found to be an allelopathically active species, which also decreased the growth of selected associated species during its decaying process. However, leaf leachate did not play an important role in depressing the growth of associated species. Salsola was autotoxic, but its germinatoin was not inhibited by any of the isolated phytotoxins applied. The phytotoxins identified from Salsola leaves were caffeic, ferulic, chlorogenic, isochlorogenic, and neochlorogenic acids, and quercetin. Allelopathy may play an important role in the rapid disappearance of the weedy stage, similar to what is established for old farm lands. However, further studies are desirable. © 1979 Plenum Publishing Corporation.
引用
收藏
页码:429 / 437
页数:9
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