大扁杏营养器官对农作物他感作用实验

Experiment in prunus armeniaca vegetative organs' allelopathy on crops

以大扁杏营养器官根、茎、叶作为供体材料,花生、玉米、大豆种子作为受体材料,开展林农复合生态系统大扁杏营养器官对农作物种子的他感作用实验研究.研究结果表明:大扁杏根浸提液对3种农作物种子萌发都有抑制效应,其中对花生种子萌发抑制效应最弱;茎浸提液对玉米种子萌发有明显的抑制效应,对大豆种子的萌发具有协同促进效应,对花生种子萌发无影响;叶浸提液对供试农作物种子萌发均有抑制效应,其中对大豆种子萌发抑制效应最显著,对花生种子萌发抑制效应不明显.构建大扁杏优质农林复合系统应首选大扁杏—花生复合模式.

This article mainly utilized Prunus armeniaca's vegetative organs of root, stem, leaf as donor materials,and peanuts, corns, soybean seeds as receptor materials, to launch an experimental research on Prunus armeniaca vegetative organs' allelopathy on crops in agroforestry ecosystem.The experimental results show that Prunus armeniaca water extract of roots has a suppression effect on three kind of the crops seeds, but the weakest suppression effect on peanuts; water extract of stems also has a obvious suppression effect on germination of crop seeds, and a catalytic effect on germination of soybean seeds, but no effect on the germination of peanut seeds;water extract of leaves shows inhibitory effects on the tested crop seeds' germination, and the strongest effect on soybean, but the weakest effect on peanut. Building Prunus armeniaca agroforestry system with high quality should adopt the preferred Prunus armeniaca-peanut composite pattern.