Allelopathic effects of invasive weed species Abutilon theophrasti Medik., Ambrosia artemisiifolia L., Datura stramonium L. and Xanthium strumarium L. on tomato

L. Radivojević, M. Sarić-Krsmanović, J. Gajić-Umiljendić, L. Santric
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引用次数: 1

Abstract

Abutilon theophrasti Medik, Ambrosia artemisiifolia L., Datura stramonium L. and Xanthium strumarium L. are four well-known invasive weed species that are widespread in many crops. Laboratory experiments were conducted to evaluate the allelopathic effects of decomposition products of these four invasive weeds on seed germination and early seedling growth of tomato. The results of the study showed that decomposition products obtained from A. theophrasti, A. artemisiifolia, D. stramonium and X. strumarium had different allelopathic impacts on germination and seedling growth of tomato. The degree of inhibition or stimulation depended on weed species and type of decomposition product. Root decomposition products of all species except X. strumarium decreased the early growth of tomato (2-37%). X. strumarium had only stimulating effect on early growth of tomato (1-86%). Also, the results showed that leaves of the other three invasive weed species had stimulating effects on early growth of tomato (1-53%). Hence, the allelopathic potential of X. strumarium, as well as the leaf decomposition products of the other three invasive weed species could be used to develop an appropriate technology to improve tomato production.
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入侵杂草Abtilon theoprasti Medik的化感作用。,青蒿、曼陀罗和苍耳对番茄的影响
Abutilon theophrasti Medik、Ambrosia artemisiifolia L.、Datura stramonium L.和Xanthium strumarium L.是四种众所周知的入侵杂草,广泛存在于许多作物中。通过室内试验,评价了4种入侵杂草分解产物对番茄种子萌发和早苗生长的化感作用。研究结果表明,不同腐解物对番茄萌发和幼苗生长具有不同的化感作用。抑制或刺激的程度取决于杂草种类和分解产物的类型。除瘤胃外,其余树种根系分解产物均对番茄早期生长有抑制作用(2-37%)。瘤胃对番茄的早期生长只有刺激作用(1 ~ 86%)。结果表明,其他3种入侵杂草的叶片对番茄的早期生长有促进作用(1 ~ 53%)。因此,利用野蓟马的化感作用潜力,以及其他三种入侵杂草的叶片分解产物,可以开发出适当的技术来提高番茄产量。
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审稿时长
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