4种寄主植物对亚洲玉米螟生长发育的影响  

Effects on Growth and Development of Ostrinia furnacalis by Feeding with Different Host Plants

作　　者：苏国连 陈斌[1] 李正跃[1] 桂富荣[1] 和淑琪[1] 

机构地区：[1]云南农业大学植物保护学院农业生物多样性与病虫害控制教育部重点实验室,云南昆明650201

出　　处：《云南农业大学学报（自然科学版）》2016年第2期210-217,共8页Journal of Yunnan Agricultural University:Natural Science

基　　金：国家"973"计划(2011CB100404);云南省科技创新团队计划(2011HC005);云南省高校科技创新团队支持计划(云教科[2011]14号);云南省教育厅科学研究基金项目(2013J098)

摘　　要：为了弄清不同寄主植物对亚洲玉米螟生长发育的影响,室内研究了玉米(Zea mays)、甘蔗(Saccharum officinarum)、四季豆(Phaseolus vulgaris)、茼蒿(Chrysanthemum coronarium)对亚洲玉米螟发育历期、体重增长和龄期及成虫产卵量的影响。结果表明:相同条件下,亚洲玉米螟幼虫取食不同寄主植物后其虫龄存在较大差异,其中饲喂四季豆的种群中77.8%个体有4龄,饲喂玉米、甘蔗及玉米甘蔗混合食物后90%个体有5龄,而饲喂茼蒿的种群可达6龄。饲喂四季豆的亚洲玉米螟F1代幼虫总的发育历期最短,仅12.52 d,而饲喂玉米、玉米与甘蔗混合食物的个体发育历期显著长于其他处理,分别为31.0 d和28.17 d。F2代幼虫总发育历期比F1代短;F1代亚洲玉米螟末龄幼虫体重以饲喂四季豆的最大,单头体重达56.13 mg,与饲喂甘蔗的个体体重(51.80 mg)间无显著差异,且显著高于其他处理,而饲喂玉米+甘蔗的最低,仅27.88 mg,与饲喂茼蒿的(34.31 mg)无显著差异。不同寄主植物饲喂的亚洲玉米螟产卵量也有显著差异,以饲喂茼蒿的最高(217粒/雌)。F2代卵的孵化率比F1代低,且饲喂玉米、四季豆及茼蒿的F2代中雌虫比例明显高于雄虫,而饲喂甘蔗及玉米+甘蔗的雄虫比例较高。本研究结果将为进一步研究亚洲玉米螟种群分化及利用作物多样性种植控制亚洲玉米螟的机理提供基础数据。In order to study the effects on the growth and development of Ostrinia furnacalis fed with different host plants,Zea mays,Saccharum officinarum,Z. mays ＋ S. officinarum,Phaseolus vulgaris and Chrysanthemum coronarium were studied to affected the developmental period,weight,instars and fecundity in laboratory. Results showed that the instars of ACB fed with different plants differed significantly on the same conditions. There were 77. 8% individuals fed with P. vulgaris went through 4 instars,90% individuals fed with Z. mays,S. officinarum and Z. mays ＋ S. officinarum went through5 instars,and all individuals fed with C. coronarium went through 6 instars. The larvae developmental period of F1 generation feeding on P. vulgaris was minimum,only was 12. 52 d,other feeding on Z.mays and Z. mays ＋ S. officinarum were longer,which was 31. 0 and 28. 17 d respectively. The larvaedevelopmental period of F2 generation was shorter than the F1 generation. Weight of mature larvae of F1 generation feeding on P. vulgaris was maximun,which was 56. 13 mg,and heavier than other treatments,while had no significantly difference with feeding with S. officinarum（ 51. 80 mg）. Those fed with Z. mays ＋ S. officinarum were lowest,only was 27. 88 mg,had no significantly difference with those fed with S. officinarum（ 34. 31 mg）. Fecundity of various plants showed significantly different,C. coronarium treatment was much higher than other treatments with 217 eggs laid per female. The egg hatching rate of F2 generation was lower than F1 generation,and the sec ratio of F2 generation shows that there were more females in corn treatment,P. vulgaris treatment and C. coronarium treatment and more males in S. officinarum treatment and Z. mays ＋ S. officinarum treatment. The results provided basic data to further study the population differentiation,and control ACB by using crop diversity.

关 键 词：亚洲玉米螟 发育历期 体重 龄期 产卵量 

分 类 号：S435.132[农业科学—农业昆虫与害虫防治]