查询词典 bollworm
- 与 bollworm 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Also clarified:"bollworm's son," is wrong, bee arrested budworm not raise as his own son, but arrangements for food for their offspring.
还弄清了:"螟蛉之子"是错误的,蜂抓青虫不是当成自己的儿子养,而是为自己的后代安排食物。
-
MAINLY ON COTTON BOLLWORM,CABBAGE MOTH,ORIENTAL TOBACCO BUDWORM,CABBAGE WORM AND THE EGGS,WITHOUT ANY POLLUTION.
据对全国2000多万亩棉花防治结果的调查,连续使用3年此类农药的棉田,棉铃虫的危害基本被自行控制。
-
Based on the weather data of geographical points and the phenological data of CBW, the single sine model that forecast the occurrence date of cotton bollworm is developed. By using year's data of Shihezi area, parameter of CBW emergence of overwintering generation, first generation and second generation in the Xinjiang region is built under the different low temperature. Based on the above research, the concepts, functional development temperature threshold and functional developmental degree-day, are put forward. Using the data of different station in the Shihezi area, the model is validated
基于地理点的气象数据和棉铃虫物候数据,建立了棉铃虫发生期预测的single sine 模型,利用石河子地区多年的数据,建立了不同发育温度条件下的新疆地区越冬代、第一代和第二代棉铃虫羽化的参数库;在此基础上提出功能发育起点和功能发育日度的概念并修订了模型,利用石河子地区植保站的数据,验证了模型的可行性。
-
In maintaining advantages in cotton breeding suitable to spinnin middle-count yarn, breeding research for cotton varieties suitable to spinning high-count yarn and middle-low-count yarn should be strengthened, and new varieties must be resistant to Fusarium and Verticillium wilt and cotton bollworm and must have high rate of cotton yield before frost, and emphasize the applicalion of transgenic breeding technique in future.
今后应在保持适纺中支纱棉花新品种选育优势的同时,加强适纺高支纱和中低支纱棉花新品种选育,育成品种必须抗枯、黄萎病,抗棉铃虫,霜前花率高,增强稳产性和适应性,并重视转基因育种技术的应用。
-
The effects of fenvalerate, phoxim and their mixture at about doses of LD〓 separately on the larva with 4 instars of cotton bollworm in development, spermatogenesis, spermateliosis and male mesoblast gonad were studied with micro-application method.
以毛细管点滴法,分别研究了约LD50剂量的氰戊菊酯、辛硫磷及其混剂对棉铃虫4龄初期幼虫的生长发育、精子发生与形成以及雄性中胚层生殖腺的影响。
-
Carposina, Navicula caterpillars, flat postornata, soil pests such as mole cricket, can they turn to land the ground froze to death;also bollworm damage, stick insects, sawfly wheat, locust pupae Room nests, etc., to prevent its emergence or incubation in order to better carry out Overwintering insects buried in the 10 ~ 15 cm layer, it should be frozen in the soil before or early spring, while the pests,"sleep" when the Land20 ~ 30 cm, so that exposure of adults or pupae on the ground was frozen to death or birds pecking; such loose soil can also help the soil ripening, and enhance the permeability of soil.
害虫越冬入土在10~15厘米层间,故应在土壤封冻之前或早春,趁害虫"熟睡"之际,将田土深翻20~30厘米,使成虫或蛹暴露在地面上被冻死或被禽鸟啄食;这样也可使土壤疏松,有利于土壤的熟化,增强土壤通透性。
-
A two-choice olfactometer was developed to determine the behavioural responses of adult cotton bollworm to plant volatiles.
发展了一种选择性嗅觉仪,用这种嗅觉仪测定了棉铃虫成虫对萎蔫的枫杨叶、新鲜的棉花叶、棉花花蕾、玉米叶及玉米花丝气味的反应。
-
This paper reports the results of studies on the nuclear polyhedrosis virus-of the cotton bollworm Heliothis armigera.
自1973—1974年以来,在湖北荆州地区微生物站筛选出一批棉铃虫病毒毒株,其毒力均为80%以上,有的高达100%。
-
The relationship between kanamycin-resistance and bollworm-resistance of transgenic cotton progeny was studied by using this method.
利用该方法对转基因植株后代卡那霉素抗性和棉铃虫抗性之间的关系进行了研究。
-
In Xinxiang Aera of Henan Province in 1997, the occurrence of cotton pests were investigated in the Bt cotton and common cotton fields The result showed that the numbers of cotton bollworm egg were similarly in both fields, but that of survival larvae on Bt cotton were lower than that on common cotton The occurrence of cotton aphis was no difference but the spider mite were more heavy in Bt cotton field At the same time,control strategy against cotton pests were discussed for the Bt cotton
对河南新乡棉区种植的转Bt基因棉和常规棉棉田虫情进行了定点系统调查和大田普查,结果表明:棉铃虫在两种棉田棉花上的落卵量无明显差别,而幼虫存量差异显著,Bt棉棉花上幼虫存量显著降低;Bt棉对棉蚜的发生无明显的影响,而Bt棉上棉红蜘蛛的发生比常规棉略重,同时初步研究制定出种植Bt棉后的棉虫综防对策
- 推荐网络例句
-
This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
-
Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
-
There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。