寄主密度 的英文怎麼說
中文拼音 [jìzhǔmìdù]
寄主密度
英文
hostdensity-
The results of the investigation in forests showed that dastarcus helophoroides adults displayed a core distribution pattern, that belonged to aggegated distribution, and changed to mosaic distribution pattern in a denser population due to the exclusion behavior among the individual in host competition
摘要林間調查和研究表明，花絨堅甲成蟲的分佈格局為聚集分佈中的核心分佈型，在群體密度較大時，由於個體間具有競爭寄主的排斥行為，其分佈則轉變為嵌紋分佈；花絨堅甲在進入新的分佈區后，首先是建立大小不等的聚集群，再以聚集群體的形式向周圍擴散。However, volatiles from the same treatment plants of chinese cabbage cultivars or common cabbage cultivars were no difference for adult females. ( 3 ) the females of d. semiclausum reared on radish were tested in the oviposotion selection of d. semiclausum between chinese cabbage and common cabbage. when d. semiclausum wasps were provided with equal numbers of larvae of p. xylostella, the number of hosts parasitized on chinese cabbage was more than on common cabbage
（ 3 ）以蘿卜為寄主植物飼養的半閉彎尾姬蜂，對白菜、甘藍不同寄主植物上寄主幼蟲的產卵選擇性試驗結果表明，當寄主幼蟲的密度相同時，該蜂顯著嗜好寄生白菜上的小菜蛾幼蟲，而對白菜早熟五號、夏豐兩個品種間以及甘藍蘇晨一號、京豐一號兩個品種間小菜蛾幼蟲的寄生率無顯著差異。
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