Allelopathic Effects of Soil Incorporated Asparagus Roots on Lettuce, Tomato, and Asparagus Seedling Emergence
Allelopathic Effects of Soil Incorporated Asparagus Roots on Lettuce, Tomato, and Asparagus Seedling Emergence
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土壤掺入芦笋根对生菜、番茄和芦笋出苗的化感作用
DOI：
10.21273/hortsci.21.1.82
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发表时间：
1986
期刊：
影响因子：
1.9
通讯作者：
S. Garrison
中科院分区：
文献类型：
--
作者：
W. E. Shafer;S. Garrison
芦笋（Asparagus officinalis L.）当在播种前0或28天掺入土壤中时，以每100 g干土壤2、4或6 g（干重基础）的根组织加入土壤中通常抑制莴苣并且延迟番茄和芦笋出苗。2和4克芦笋根组织的毒性在50天后降低，但6克率抑制和/或延迟出苗后50和90天纳入土壤中。这些结果表明，芦笋根组织中含有异源和自毒的化感作用化合物，该化合物随着在土壤中时间的增加而失活。
Asparagus (Asparagus officinalis L.) root tissue added to soil at 2, 4, or 6g (dry weight basis) per 100 g of dry soil generally inhibited lettuce and delayed tomato and asparagus seedling emergence when incorporated in soil for 0 or 28 days before seeding. The toxicity of the 2 and 4 g rates of asparagus root tissue was diminished after 50 days, but the 6 g rate inhibited and/or delayed emergence 50 and 90 days after incorporation in soil. These results suggest that asparagus root tissues contain a hetero- and auto-toxic allelopathic compound(s) that is inactivated with increasing time in the soil.