苜蓿盲蝽对紫花苜蓿植株生长和营养品质的影响  

Effects of Adelphocoris lineolatus on the Growth and Nutritional Quality of Medicago sativa

作　　者：郭江龙 高占林[1] 刘振宇[2] 窦亚楠 安静杰[1] 刘忠宽[2] 党志红[1] 李耀发[1] GUO Jianglong;GAO Zhanlin;LIU Zhenyu;DOU Yanan;AN Jingjie;LIU Zhongkuan;DANG Zhihong;LI Yaofa(Plant Protection Institute,Hebei Academy of Agricultural and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China,Ministry of Agriculture and Rural Affairs,Baoding,Hebei 071000,China;Institute of Agricultural Recourses and Environment,Hebei Academy of Agricultural and Forestry Sciences,Shijiazhuang,050051,China)

机构地区：[1]河北省农林科学院植物保护研究所/河北省农业有害生物综合防治工程技术研究中心/农业农村部华北北部作物有害生物综合治理重点实验室,河北保定071000 [2]河北省农林科学院农业资源环境研究所,石家庄050051

出　　处：《新疆农业科学》2022年第4期1001-1008,共8页Xinjiang Agricultural Sciences

基　　金：公益性行业(农业)科研专项(201103012)。

摘　　要：【目的】研究苜蓿盲蝽危害对紫花苜蓿植株生长和营养品质的影响。【方法】采用温室盆栽罩笼的方法,研究了不同虫口密度苜蓿盲蝽刺吸危害对紫花苜蓿株高、分枝数、茎叶比、干重、粗蛋白和粗脂肪含量,以及相对饲喂价值(RFV)等生长和营养指标的影响。【结果】苜蓿盲蝽虫口密度与受害紫花苜蓿株高呈显著负相关(P<0.001),对照组紫花苜蓿平均株高为42.51 cm,苜蓿盲蝽8头/笼处理组紫花苜蓿平均株高仅为25.24 cm。随着虫口密度的增加,紫花苜蓿茎叶比呈显著上升趋势(P<0.001)而干重显著下降(P=0.009),紫花苜蓿粗蛋白(P=0.02)和粗脂肪(P<0.001)含量也呈显著下降趋势。苜蓿盲蝽危害影响了紫花苜蓿的RFV(P<0.001),对照组RFV为204.14,接虫密度1、2、4和8头/笼处理后,紫花苜蓿的RFV分别较对照组降低了0.56%、9.01%、21.85%和23.16%。【结论】苜蓿盲蝽危害降低了紫花苜蓿的产量和营养价值。【Objective】In order to investigate the effects of Adelphocoris lineolatus on the plant growth and nutritional quality of Medicago sativa.【Methods】The adults of A.lineolatus with different were inoculated to M.sativa plant.The plant height,branch number,stem-leaf ratio,dry weight,crude protein,ether extract and acid relative feeding value(RFV)were determined.【Results】The results showed that there was a significant negative correlation between A.lineolatus density and plant height(P<0.001),with the highest value in the control group(42.51 cm)and least value in 8 insects/cage(25.24 cm).With the increase of density,the stem-leaf ratio showed a significant upward trend(P<0.001)while the dry weight showed a significant downward trend(P=0.009).The crude protein(P=0.02)and ether extract content(P<0.001)also showed a significant downward trend.Meanwhile,A.lineolatus density significantly affected RFV(P<0.001),with the highest RFV(204.14)in the control group.Compared to the control,the RFVs in 1,2,4 and 8 insects/cage treatments were reduced by 0.56%,9.01%,21.85%,23.16%,respectively.【Conclusion】This study confirms that the damage of A.lineolatus reduces the yield and nutritional quality of M.sativa,and provides a basis for strengthening the control of A.lineolatus in the field.

关 键 词：紫花苜蓿 苜蓿盲蝽 危害 生长 营养品质 

分 类 号：S433.3[农业科学—农业昆虫与害虫防治]