查询词典 radish aphid

In the period of radish to grow leaf the fresh weight unit area was menstruate; and then in the period of radish to grow root the leaf heat injury index and death rate of plant in summer were menstruate, also the electric conductivity percentage or high temperature cause death time; Finally radish yield and effective root rate were menstruated in the harvests and accomplish to synthesize evaluation heat tolerance of radish.

由此形成在萝卜长叶期进行苗期单位面积叶鲜重测定；长根期测定叶片热害指数和越夏死株率，或进行电导百分率和高温致死时间测定；萝卜收获期测定有效根率，最后综合评价萝卜耐热性。

The saving-water effect of Radish and Cabbage under PFM and appropriate irrigation,and the drought-resisting of radish seedling which seed was soaked by CaCl_2 were systematicly reseached by field observation and the experiment in door.The main results were summaried as follows:The soil temperature of 0~20cm cultivated layer was increased 3-4.5℃ in early growth period was only 1℃ in late growth period by PFM;there was more water saved up to 20.84mm in 0~60cm soil layer by PFM than no PFM in the early growth period of Radish;the yield and water use efficiency of Radish in L4 were exceeded respectively 10.1% and 21.9% of that contrast, the yield and water use efficiency of Cabbage in G4 were exceeded respectively 8.7% and 26.58% of that contrast, under PFM and appropriate irrigation.

主要研究结果如下：地膜覆盖在植株生长前期耕作层平均可增温3～4.5℃，在生长后期增温幅度减小，仅有1℃左右；地膜覆盖在植株生长前期可有效的保持土壤水分，在萝卜生长前期，使0～60cm土层内多储水20.84mm；在覆膜不灌水充分利用自然降雨的条件下生产萝卜，可比裸地正常灌水萝卜增产10.1%，水分利用效率提高21.9%；覆膜只浇一水生产甘蓝，可比裸地正常灌水生产甘蓝增产8.7%，水分利用效率提高26.58%。

Divides according to the season, may divide into spring the radish and the fall radish; May divide into the large, medium and small three types according to the root size; Divides according to radish's color may divide into the turnip, the blue radish and the carrot.

按季节来分，可分为春萝卜和秋萝卜；按根的大小可分为大、中、小三类型；按萝卜的颜色来分又可分为白萝卜、青萝卜和红萝卜。

Among them multi-types of body colour and special types of hosts are the most universal phenomena. In our experiment, methods of microsatellite primer PCR molecular marker and partial gene sequence analysis of mitochondrial DNA COⅠ-Ⅱwere used to analyze genetic diversity of two body colour bio-types (red bio-type and green bio-type) of green peach aphid from different plants and relationship between green peach aphid and host plants by separately selecting individuals of aphid from rape, Chinese cabbage and tobacco. The main results as follows: 1. Selecting An Ruisheng'method of extracting DNA from small sized insect, using this method can extract DNA well and steadily.

本文采用微卫星引物PCR 分子标记和线粒体COⅠ-Ⅱ部分序列分析的方法，分别选取十字花科植物中的甘蓝和油菜，茄科植物中的烟草，对不同寄主上桃蚜的红色和绿色两种体色生物型的遗传多态性及其与寄主植物的关系进行了研究，取得的主要结果如下： 1、选取安瑞生(2002)小型昆虫DNA 提取方法，能很好且比较稳定的提取桃蚜基因组DNA。

The research results offer basic indicators of resistance to aphid for identifying resistance wheat varieties and theory warranty for breeding of wheat resistance to aphid and intergrate aphid management.

研究结果为小麦品种的抗蚜性鉴定提供了初步指标，为小麦抗蚜育种和麦蚜的综合治理提供了理论依据。

Through the experiment, which of 9%anti- aphid tiny milk acts for methylto prevention and cure wheat aphid with the sulphur and phosphorous, explicit its prevention and cure result to the wheat aphid , attain the purpose to act for methyl to the high poisonous organic phosphorous agrochemical.

通过9%抗蚜威微乳剂防治小麦蚜虫试验，明确了它对小麦蚜虫的防治效果，达到替代甲基对硫磷等高毒有机磷农药的目的。

Result The germination percentages of maize and dry radish, and the seedling heights of Shawo radish, maize and dry radish were reduced with the increase of the cadmium concentration. The cadmium had a remarkable restraining effect on the length of main radicel of 4 kinds of crops.

结果］玉米与旱萝卜的发芽率，沙窝青萝卜、玉米和旱萝卜的幼苗高度均随镉浓度的增加而降低；镉对4种作物的胚根伸长抑制效应十分明显。

After years of research, exploration, the successful realization of Scleroderma guani, Zhou's rodents wasps, Trichogramma, Anastatus Bee, Lai aphid wasps, pulp Kok aphid wasps, Coccinella septempunctata, grass Chrysopa septempunctata, Yang Fan-moth virus, Lymantria dispar virus, the virus, such as spring geometrid more than 10 natural enemies of insect pathogens and insects breed of industrial production.

经多年的研究、探索，已顺利实现管氏肿腿蜂、周氏啮小蜂、赤眼蜂、平腹小蜂、丽蚜小蜂、浆角蚜小蜂、七星瓢虫、草蛉、杨扇周蛾病毒、舞毒蛾病毒、春尺蠖病毒等十几种天敌昆虫及昆虫病原体的周年工厂化繁殖生产。

And aphid. Results of mixed medicamental test showed, Matrine (1.8%) and avermectin(0.04%) had the best effect on killing pesticide and protecting leaves to Pieris rapae L.;Matrine(0.5%) and avermectin(0.2%) and Matrine(0.5%) and avermectin(0.25%) had the best effect to aphid, their LC50 is 0.08815mg/ml 0.07454mg/ml.

药剂混配试验结果表明：对菜青虫的试验中，1.8%苦参碱+0.04%齐螨素处理杀虫效果、保叶效果最佳；对蚜虫的试验中，0.5%苦参碱+0.2%齐螨素混剂处理，0.5%苦参碱+0.25%齐螨素混剂处理效果最佳，两者致死中浓度分别为：0.08815mg/ml、0.07454mg/ml。

Cotton aphid, melon aphid,{Aphis gossypii} Glover

格洛弗小姐是不允许袒护罪过的。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？