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   叶毛密度 的翻译结果: 查询用时:0.251秒
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叶毛密度
相关语句
  leaf-hair density
     Resistant rate in cultivars with higher leaf-hair density related to the length of leaf-hair.
     多毛品种高的叶毛密度须协同一定的叶毛长度才具有抗螨性。
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  “叶毛密度”译为未确定词的双语例句
     4. The regression models about non-preference indexes of the aphid in relation to pubescence density, content of epidermis wax, thickness of epidermal cell, soluble sugar and free amino acids of cotton varieties were built.
     (4)棉蚜对不同棉花品种的选择性与蜡质含量、叶毛密度、表皮层细胞厚度、可溶性总糖含量和游离氨基酸含量密切相关。
短句来源
     Both pubescence density and soluble sugar were negatively related to non-preference, while the free amino acids and thickness of epidermal cell positively.
     叶毛密度和可溶性糖含量与不选择性呈负相关,游离氨基酸和表皮层细胞厚度与不选择性呈正相关。
短句来源
     4. The behavior reaction to different cucumber volatiles, the density of leaf trichomes, and the effect of leaf color on the pest population were also investigated in this thesis.
     4.用Y臂嗅觉仪研究了烟粉虱对黄瓜植株气体挥发物的行为反应,在解剖镜下测定了叶毛密度,并进行了叶色比较。
短句来源
     There had significant differences of the leaf trichome density among different cucumber strains, and there had a significant correlation between the leaf trichome density and the quantity of adults and their eggs.
     不同黄瓜品种的叶毛密度差异显著,而且叶毛密度与烟粉虱成虫数量和产卵量呈显著正相关。
短句来源
     The density of the leaf hairs of different cucumber varieties demonstrated significantly positive correlation with the adult preference and oviposition.
     黄瓜品种叶毛密度与烟粉虱成虫趋向和产卵量存在显著正相关。
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  相似匹配句对
     Only B.masoniana and B.rex were active towards Candida albicans .
     和秋海棠(B.rexPutz.)
短句来源
     Studies on the Chemical Constituents of Croton Caudatus Geisel.var. Tomentosus Hook.
     巴豆的化学成分研究
短句来源
     Particles bulk volume density test method
     颗粒体积密度试验方法
短句来源
     Study on Density of Rex Rabbit
     力克斯兔被密度研究
短句来源
     EFFECTS OF DENSITY ON Tetranychus truncatus EHARA (ACARINA,TETRANYCHYDAE)
     截形螨的密度效应
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The experiment on screening and identification seedlings of cotton cultivars of higher resistance to the carmine spidermite,Tetranytrus cinnabarinus (Boisduval) was carried out in 1993~1995.The result revealed that Gossypium barbadence,G.arbareum,and some cultivars of G.Hirsutum like higher leaf-hair density,red-leaf and glandless possessed resistance to mites.The average damage index of the dentified cultivars with red-leaf,higher leaf-hair density...

The experiment on screening and identification seedlings of cotton cultivars of higher resistance to the carmine spidermite,Tetranytrus cinnabarinus (Boisduval) was carried out in 1993~1995.The result revealed that Gossypium barbadence,G.arbareum,and some cultivars of G.Hirsutum like higher leaf-hair density,red-leaf and glandless possessed resistance to mites.The average damage index of the dentified cultivars with red-leaf,higher leaf-hair density and glandless was significantly lower than that of the diffused ones,which indicated that these characters possessed potential resistance to mites. Resistant rate in cultivars with higher leaf-hair density related to the length of leaf-hair.

通过对98个棉花品种的苗期鉴定,筛选出了一批对朱砂叶螨抗性强的种质资源,包括亚洲棉、海岛棉和部分具有多毛、红叶和无色素腺性状的陆地棉品种。所鉴定的红叶、多毛和无色素腺品种平均受害指数显著低于推广品种,表明这些性状具有潜在的抗螨性。多毛品种高的叶毛密度须协同一定的叶毛长度才具有抗螨性。

The effects of ten cucumber varieties on the feeding and oviposition of adult Bemisia tabaci were assessed using selection and non-selection tests.The results showed that the quantity of adults and eggs per plant on Zhongnong NO.19,Yuyou NO.3 and 22-35RZ were significantly higher than that on Sijiqiugua,22-94RZ and Chunguang NO.2.There was no significant difference in the hatch rate and emergency rate among the cucumber varieties,and all the pests developed normally.The density of the leaf hairs of different...

The effects of ten cucumber varieties on the feeding and oviposition of adult Bemisia tabaci were assessed using selection and non-selection tests.The results showed that the quantity of adults and eggs per plant on Zhongnong NO.19,Yuyou NO.3 and 22-35RZ were significantly higher than that on Sijiqiugua,22-94RZ and Chunguang NO.2.There was no significant difference in the hatch rate and emergency rate among the cucumber varieties,and all the pests developed normally.The density of the leaf hairs of different cucumber varieties demonstrated significantly positive correlation with the adult preference and oviposition.

选用10个黄瓜品种通过选择性和非选择性试验,探讨烟粉虱对黄瓜品种的选择性。结果表明,烟粉虱成虫对不同黄瓜品种取食和产卵的选择存在一定差异,最喜好中农19号、裕优3号及22-35RZ,最不喜好四季秋瓜、22-94RZ、春光2号。烟粉虱在不同黄瓜品种上的卵孵化率、羽化率没有显著差异,均能正常发育。黄瓜品种叶毛密度与烟粉虱成虫趋向和产卵量存在显著正相关。

With no-free choice means, the host plant preference of Liriomyza huidobrensis (Blanchard) was examined according to the number of stipples (oviposition and/or feeding punctures) as a preference index on 22 vegetable varieties of 16 species of 6 families in the laboratory. The results showed that the host preference for feeding and oviposition was significantly different among the hosts tested. The preference levels decreased from Leguminosae, Compositae, Cucurbitaceae, Solanaceae, Umbelliferae to Cruciferae....

With no-free choice means, the host plant preference of Liriomyza huidobrensis (Blanchard) was examined according to the number of stipples (oviposition and/or feeding punctures) as a preference index on 22 vegetable varieties of 16 species of 6 families in the laboratory. The results showed that the host preference for feeding and oviposition was significantly different among the hosts tested. The preference levels decreased from Leguminosae, Compositae, Cucurbitaceae, Solanaceae, Umbelliferae to Cruciferae. Kidney bean and garland chrysanthemum were the most preferred, and cabbage and tomato were the least. Chemical analysis and microscopical investigation showed that the content of tannin and flavorne in foliages and the density of leaf trichomes differed significantly among the vegetable varieties tested. The content of tannin was the highest in balsam pear, less in pea, tomato and green pepper, and the least in Cucurbita maschata var. medullosa, garland chrysanthemum, kidney bean and American celery. The content of flavone was the highest in cabbage and tomato, less in balsam pear, and the least in garland chrysanthemum, kidney bean and American celery. The density of leaf trichomes was the highest in C. maschata and Chinese cabbage, less in C. pepo, C. maschata var. medullosa and cabbage, and the lowest in green pepper, lettuce and balsam pear. The correlative analysis indicated that the host preference of L. huidobrensis was significantly negatively correlated with the content of tannin and flavone in foliages, and correlation coefficients were -0.4425 (P=0.0392)and -0.5728 (P=0.0053) , respectively, but it was not significantly correlated with the density of leaf trichomes (R=-0.1807, P=0.4211). These results indicated that tannin and flavorne might play an important role in restraining feeding and oviposition of the pea leafminer.

采用非自由选择法,以刺伤孔(包括取食孔和产卵孔)数为指标,在室内测定了南美斑潜蝇对6科、16种、22个蔬菜品种的寄主选择性。结果表明,南美斑潜蝇对供试蔬菜品种的选择性存在显著差异,选择性大小依次为豆科>菊科>葫芦科>茄科>伞形科>十字花科;菜豆和茼蒿是南美斑潜蝇最喜欢产卵和取食的寄主,而甘蓝和番茄是其选择性最差的寄主。化学分析和解剖镜观察表明,叶片单宁酸、黄酮含量及叶毛密度在供试品种间存在显著差异:苦瓜的单宁酸含量最高,其次为豌豆、番茄和青椒,含量最低的为金丝搅瓜、茼蒿、菜豆和美国西芹;黄酮含量最高的为甘蓝和番茄,其次为苦瓜,最低为茼蒿、菜豆和美国西芹;南瓜和小白菜的叶毛密度最高,其次为西葫芦、金丝搅瓜和甘蓝,最低为青椒、莴苣和苦瓜。相关分析表明,南美斑潜蝇寄主选择性与叶片单宁酸和黄酮含量呈显著的负相关关系,相关系数分别为-0.4425(P=0.0392)和-0.5728(P=0.0053) ,而与叶毛密度相关关系不显著(R=-0.1807 ,P=0.4211)。说明黄酮和单宁酸对南美斑潜蝇产卵和取食具有明显的抑制作用。

 
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