查询词典 grain borer

It will take 56 to 63 days for the frist generetion of Asiatic corn borer to develop from egg to larva, pupa, and imago in Dewu region. 7. The primary imperilment period of first gemeration of Asiatic corn borer is shooting stage. And the heading stage, grain filling stage in early sowing corn and belling stage in late sowing cron is disserved by the second generation. The imperilment degree of second generation is more serious than frist generation. 8. The best way for the prevention of black cutworm is to spray on early larva and to trap and kill with poison bait in late larva.

7第一代玉米螟主要为害拔节期玉米，第二代玉米螟主要为害处于抽雄吐丝期、灌浆期的早播玉米和处于大喇叭口期的晚播玉米，第二代玉米螟对玉米的为害程度显著高于一代玉米螟；玉米螟的为害受玉米品种影响较大，自交系苏宁三号的受害程度明显高于其他各品种；植株长势对玉米螟发生为害程度有极显著影响，表现为长势好、生长旺盛的玉米受害重，长势差的玉米受害轻；海拔高低对玉米螟发生为害的影响不大。

Through the treatments of defoliate, darken ear and darken peduncle, we studied the effects of wheat photosynthesis organs on five items, such as 1000-grain weight, grain weight/ear, grain number/ear, contribution to 1000-grain weight and contribution to grain weight/ear in different fertilizations.

为了解小麦光合器官对产量的作用以及施肥的调节效应，通过剪叶、包穗、包穗下节等处理，研究了不同施肥条件下小麦光合器官对千粒重、穗粒重、穗粒数的影响以及对千粒重贡和穗粒重的贡献率。

Microscope and image analysis technique are adopted in 《JB/T 7990-1998》. The "grain size" tested by microscope is expressed by the "largest breadth" of the grain image. When the grain size is tested by image analysis instrument, the grain size is expressed by the diameter of a circle whose area equals the grain image's.

JB/T7990-1998》规定用图像分析仪或显微镜测量粒度，显微镜法测量的"粒度"是以颗粒投影的"最大宽度"来表征的，而用图像分析仪测量的"粒度"指的是"等面积圆直径"，即，用与颗粒投影面积相等的圆的直径表征颗粒粒度。

In view of limitation and one sidedness among former grain research , the macro agriculture base and hierarchy structure of regional grain security have been systematically studied. Furthermore, the grain demand and assuring quantity of grain security of Western China has been probed, and five important ways of ensuring grain production security has been highlighted in this paper.

针对以往粮食研究中&就粮说粮&的片面性和局限性，在系统研究粮食问题的宏观农业基础和区域粮食安全层次结构的基础上，分别探讨了中国西部地区粮食需求趋势和区域粮食安全保障结构，重点分析了解决西部地区粮食安全的五项生产保障途径。

In the practice it plays an important part in insect surveys, the choice of grain method, the improvement of grain storage level, the extension of storage time and the delay of grain quality deterioration. 1 Research on stored product insects in large warehouse 1.1 Community composition and structure analysis of stored product insects in large warehouse By means of GJ89 type probe trap investigation of stored grain insects and analysis of community composition and structure of large warehouse were carried out in Chongqing Beibei State Grain Reserve Depot. The results showed that there were main Lipocelis botrychophilus、 Cryptolestes ferrugineus、 Tyrophagus putrescentiae and Sitophilus zeamais etc in large warehouse

高大平房仓储粮昆虫生态学研究 1.1 高大平房仓散装储粮昆虫群落组成及结构分析使用GJ89型粮虫陷阱检测器对中央储备粮重庆北碚直属库高大平房仓储粮昆虫进行系统调查，并对其群落组成及结构进行了分析，结果表明高大平房仓储粮昆虫主要有书虱Lipocelis botrychophilus、锈赤扁谷盗Cryptolestes ferrugineus、腐食酪螨Tyrophagus putrescentiae和玉米象Sitophilus zeamais等4类，其中书虱为绝对优势种群；在粮堆垂直方向0～50cm 4类昆虫发生最多，100～150cm发生最少；4类昆虫在粮面0～50cm丰富度、优势度、多样性及均匀度4项指标均高于50～100cm和100～150cm，水平方向6个区域各项指标差异不大。

Grain yield per hectare is the most important factor in the method of the gray system analysis. There was significant correlation between effective irrigated area, the amount of fertilizer applied, mechanical power and the grain yield. The area of grain and the population of agriculture are factors that affect grain production. The correlation coefficient of natural resources and grain production changes unstably.

单产与粮食产量始终保持很高的关联度；有效灌溉面积、实际机耕面积、化肥施用量、农村用电量和农机总动力等农业投入对粮食产量提高影响重大；耕地面积和劳动力对粮食产量具有一定的制约；自然条件与粮食产量的关联度剧烈变动。

We accomplished the whole study by the following logic: according to the currency of the world grain trade flow, we constructed the grain trade gravity model and analyzed the main influential factors on the grain trade flow to promote the function of regional trade liberalization on the grain trade flow and forecast the accurate effects of the future regional trade liberalization organization on the main national grain trade varieties under the general balance frame.

全文按以下思路展开，根据世界粮食贸易流动的现状，通过构建粮食贸易引力模型，对影响粮食贸易流动的主要因素进行分析，判断区域贸易自由化对粮食贸易流动具有促进作用，进而在一般均衡的框架下预测未来可能成立的区域贸易自由化组织对我国主要粮食贸易品种的具体影响。

ResultThe results showed tat the sweet sorghum growth obviously surpassed the grain sorghum. The sugar content accumulation beginning and the total content were higher than the grain sorghum, but the sweet sorghum and the grain sorghum sugar accumulation general trend was consistent. Sweet sorghum biology yield was superiority, but grain sorghum ear of characteristic was superiority. In the physiological character, the chlorophyll content grain sorghum surpassed the sweet sorghum, but sweet sorghum was higher in the breath speed.

结果结果表明，甜高粱生长优势显著优于粒用高粱，主要表现在与生物产量有关的性状；糖含量的积累起点及总含量均高于粒用高粱，而甜高粱和粒用高粱糖积累总趋势是一致的；甜高粱生物产量优势强，而粒用高粱穗部性状优势强；生理性状中叶绿素含量粒用高粱优于甜高粱，而呼吸速率甜高粱偏高。

In order to enhance its resistance to bacterial blightand lepidopteran such as leaffolder, striped stem borer and yellow stem borer etc, we intergessed Xa21 and Bt genes into the genetic background of 93-11 by backcross scheme, combining with molecular marker-assisted selection and phenotypic selection. Through three backcross and two self generations, eight families that have homozygous Xa21 and Bt genes were obtained in the BC3F3 families. Two families show higher recovery percentage of 93-11 even up to 90.59%.

为了进一步提高其对白叶枯病的抗性、同时增加其对水稻鳞翅目害虫（如稻纵卷叶螟、二化螟和三化螟等）抗性，利用常规回交育种方法和结合分子标记辅助选择将Xa21基因和Bt基因同时导入93-11中，在BC3F3家系中筛选到8个家系含纯合的Xa21基因和Bt基因，其中有两个家系与93-11比较其遗传背景的回复率很高，达到90.59%。

In addition, the primary choice of resistance to Bt of rice stem borer is conducted through artificial diets of rice stem borer.

另外，本文利用二化螟人工饲料对二化螟抗Bt品系进行了初步的选育。

Some of them were ligated to the plasmid vector pCR 2.1 andsequenced,respectively.

将所获DNA片段克隆到pCR2.1载体进行测序，并与基因组数据库进行同源性比较。

Thinking since Google owns Blogger, I would be able to escalate this issue to the support team.

自谷歌的思考拥有Blogger的，我将能够缓解这一问题的支持团队。