干旱胁迫下野燕麦与共生植物的竞争效应  

Competitive Effects Between Avena fatua and Symbiotic Plants Under Drought Stress

作　　者：李潇 赵威[1] LI Xiao;ZHAO Wei(College of Agriculture,Henan University of Science and Technology,Luoyang Henan 471000)

机构地区：[1]河南科技大学农学院,河南洛阳471000

出　　处：《现代农业科技》2024年第19期61-63,67,共4页Modern Agricultural Science and Technology

摘　　要：为研究半干旱地区麦类作物田间野燕麦与共生植物之间的竞争关系,选取小麦、苋、大巢菜作为野燕麦的共生植物,在干旱胁迫下设置3种不同密度以及比例进行混合种植,观察3种共生植物与野燕麦之间的竞争效应。结果表明,大巢菜在中密度(4株/盆)和高密度(8株/盆)混种处理下对野燕麦的竞争替代作用较强,混种处理野燕麦单株生物量较单种降低51.02%~71.79%。野燕麦与大巢菜混种组合各处理野燕麦相对产量均极显著小于1(P<0.01),表明大巢菜在混种时对野燕麦生长有较强的抑制作用。In order to study the competitive relationship between Avena fatua and symbiotic plants in the field of wheat crops in semi-arid areas,Triticum aestivum,Amaranthus tricolor and Vicia sativa were selected as symbiotic plants of Avena fatua,three different densities and ratios were set up for mixed planting under drought stress,and the competitive effects between the three symbiotic plants and Avena fatua were observed.The results showed that under the mixed planting treatment of medium density(4 plants/pot)and high density(8 plants/pot),the competitive substitution effect of Vicia sativa on Avena fatua was strong.Compared with Avena fatua in individual planting,the biomass per plant of Avena fatua in mixed planting treatment reduced by 51.02%-71.79%.The relative yield of Avena fatua in mixed planting combination of Avena fatua and Vicia sativa was significantly less than 1(P<0.01).It indicated that Vicia sativa had a strong inhibitory effect on the growth of Avena fatua during mixed planting.

关 键 词：野燕麦 小麦 苋 大巢菜 共生植物 干旱胁迫 竞争效应 

分 类 号：S451[农业科学—植物保护]