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- Larvae of the bean weevil cannot move from bean to bean, so they have to compete for limited resources when two or more larvae are in the same bean. 豆象是属于内食性的昆虫,因此当一个寄主豆中有一只以上的幼虫存在时,常有幼虫竞争的现象产生。
- Environmental manipulations were used to explore the effects of larval competition on the life history strategy of the bean weevil, C. maculatus. 试验中取有或无幼虫竞争经历之四纹豆象雌虫,提供寄主豆不足与充裕两种资源状况,以比较两者在成虫期生活史特徵表现上之差异。
- The results show that the larval competition of these bean weevils was density dependent. 寄主豆中起始幼虫比例是竞争成败的关键之一。
- In recent years,a lot of bean weevils have been found in import goods,which are difficult to be controlled. 近年来,在进口货物上截获到很多的豆象,防治困难。
- In this study, the effects of intraspecific and interspecific male interference on the fecundity and longevity of female bean weevils were explored. 因此进行试验探讨对绿豆象及四纹豆象雌虫于同种或不同种雄虫干扰下,其产卵数、卵孵化率及寿命的影响。
- The possi bility of identifying the species of bean weevils by using the electophoresis method on larval lipase isoenzyme was discussed. 由此探讨利用酯酶同工酶电泳法鉴别豆象的可能性。
- Prevention and Cure of Green Bean Weevil in Storage Green Bean and Red Bean 绿豆和小豆种子仓贮时绿豆象的防治
- ADVANCE OF PREVENTION RESEARCH ON SIX QUARANTINE BEAN WEEVIL IN STORED GRAIN 六种检疫性储粮豆象防治研究进展
- However, our results contradicted to this prediction.Therefore, how larval strategies affect larval competition between the two bean weevils still needs to be further explored. 由于种间竞争试验结果与幼虫行为策略之关系,与游戏理论模式之预测结果并不相符,因此有关幼虫行为策略对种间竞争之效应仍需进一步的探讨。
- COMPARATIVE STUDY OF PHASEOLUS VULGARIS AND P.ANGULARIS ON DEVELOPMENT OF BRAZILIAN BEAN WEEVIL 菜豆和饭豆对巴西豆象发育影响比较研究
- I cannot afford to go because I haven't a bean. 我没法去,因为我身无分文。
- THE EFFECTS OF FOOD ON THE DEVELOPMENT OF BRAZILIAN BEAN WEEVIL ZABROTEA SUBFASCIASCIATUS 食物对巴西豆象生长发育的影响
- THE EFFECTS OF TEMPERATURE AND HUMIDITY ON THE DEVELOPMENT OF BRAZILIAN BEAN WEEVIL 温度和湿度对巴西豆象生长发育的影响
- I haven't a bean, so I can't pay you. 我一文不名,因此不能付钱给你。
- I haven't a bean until I get paid. 不发工资我可是身无分文。
- The weevil is a shiny, cylindrical beetle. 象甲科害虫是一种发光的圆柱形甲虫。
- The explorer live on a monotonous diet of bean and rice. 探险者靠吃豆子和米饭这些单调的食物为生。
- The sale of red bean fall off considerably in the past few months. 在过去的几个月中,红豆的销量急剧下降。
- Baked bean is on offer this week at the local supermarket. 当地超级市场本周烘豆罐头大减价。
- The weevil is a shiny, cylindrical beetle . 象甲科害虫是一种发光的圆柱形甲虫。