Mixing barley cultivars affects aphid host plant acceptance in field experiments
Mixing barley cultivars affects aphid host plant acceptance in field experiments
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DOI：
10.1046/j.1570-7458.2002.00937.x
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发表时间：
2002-02
影响因子：
1.9
通讯作者：
V. Ninkovic;U. Olsson;J. Pettersson
中科院分区：
文献类型：
--
作者：
V. Ninkovic;U. Olsson;J. Pettersson
4个接受蚜虫性无显著差异的大麦品种分别在纯林分和两两组合中单行并排播种。在有白粉蚜(Rhopalosiphum padi （L.）翅的田间地块上进行了原位沉降试验。（同翅目：蚜虫科），表明某些品种组合对蚜虫的接受度发生了变化。在一项实验室试验中，将一个栽培品种的植株暴露在其他栽培品种的空气中，当处理来自某些其他栽培品种的空气时，四个栽培品种中的三个对蚜虫的接受度显着降低。这三个品种中有两个在田间条件下表现出相同的减少。这支持了一种假设，即植物间的交流可能会在邻近植物中释放出改变蚜虫寄主植物接受程度的反应。结果还表明，这一机制并不局限于实验室的最佳生长条件，尽管它可能在田间条件下根据植物基因型进行修改。
Four barley varieties with no significant difference in aphid acceptance were sown in pure stands and in pairwise combinations with varieties side by side in separate rows. Settling tests were done in situ in the field plots with apterae of Rhopalosiphum padi (L.) (Homoptera:Aphididae) and showed that aphid acceptance was changed in some combinations of cultivars. In a laboratory test, in which plants of one cultivar were exposed to air from the other cultivars, aphid acceptance was significantly reduced in three of the four cultivars when treated with air from certain other cultivars. Two of these three cultivars showed the same reduction under field conditions. This supports the hypothesis that plant/plant communication may release responses in neighbouring plants that change aphid host plant acceptance. The results also show that this mechanism is not restricted to optimal growing conditions in the laboratory, although it may be modified under field conditions depending on plant genotype.