查询词典 cotton boll

In order to fight the two pests that usually attack cotton in the region, the boll weevil and the cotton leafworm, natural insecticides and biological combat were used.

为了对付棉籽象鼻虫和棉叶蠕虫这两种棉花作物的主要天敌，种植者借助了他们的昆虫天敌和生物手段来解决这一问题。

It has been frequently assumed, but not proved, that the majority of the migrants in what has come to be called the Great Migration came from rural areas and were motivated by two concurrent factors: the collapse of the cotton industry following the boll weevil boll weevil: n.

通常认为，但没有证实，这一被称作大迁徙运动中的多数的移民者来自农村，并且他们被两种共同存在的因素所驱动－开始于1898年的由棉铃虫害导致的棉花工业的垮掉和1914年一战爆发引起的欧洲移民的终止导致的北方对劳力的需求增多。

The leaf Bt protein in whole growth period showed in shape of "V", and the boll shell had higher Bt protein, it was benefit to resistant to boll worm in cotton.

在碳氮代谢生理方面表现为盛铃后碳氮代谢增强；Bt蛋白变化呈V型，但铃壳中含量高，有利于增强对棉铃虫的抵抗。

Based on the pot culture experiments, cotton root structure and distribution were measured in seedling stage, bud stage, flowering stage, boll stage, and boll opening stage with the dripper discharge of

该文以桶栽试验为基础，设置5个滴头流量处理（0.5、1、1.5、2、2.5 L/h）观测了棉花5个生育阶段（苗期、蕾期、花期、铃期、吐絮期）的根系结构和根系分布。

The results showed that the 50% leaf removal could increase the yield of sound boll by 24.4% that suggested the happening of overcompensation. The 25% leaf removal had no influence on cotton plant height and protein content in leaves, suggesting the 25% leaf removal in standard falling into the category of growth redundancy, but the climax in protein content in cotton leaves postponed about one week.

在棉花盛蕾期，用剪刀剪除棉花标准叶面积的25%和50%，模拟田间害虫的食叶危害程度，结果显示：50%去叶处理可使棉花成铃数增加24.4%，产生超补偿现象。25%去叶处理在短时间内对棉花的株高和叶中蛋白质含量都没有影响，植株株型亦无大的变化，表明25%叶面积属于生长冗余范畴。

GGR can promote the development of cotton roots like rhizogenic powder. It can also help seedling height, the number of lateral roots, root dry weight, boll weight and boll number per plant.

双吉尔象生根粉一样都能促进棉花根系的发育，对增加苗高、侧根数、根干重、铃重、单株结铃数均有一定的促进作用。

The details is described below: mixed with water and evenly atomized, 30-60g/mou for seedling, flowering and fruiting stages of apple, pear, grape, orange, banana, and longan; mixed with water and evenly atomized, 30-50g/mu for seedling, flowering and fruit growth stages of vegetables, like chili and solanaceous fruit and gourd; 30-60g/mu for cotton seedling, flower bud, boll, boll opening and yield stage, mixed with water and evenly atomized, 26-32 days of drought resistance period.

干旱、半干旱、干热风胁迫条件下，&ASA&高效植物保水剂在苹果、梨、葡萄、柑桔、香蕉、龙眼等果树和蔬菜的各个生育时期均可使用，具体为：苹果、梨、葡萄、柑桔、香蕉、龙眼苗期、花期、挂果期用量为30～60g/亩，兑水均匀喷雾；蔬菜如辣椒茄果类、瓜类等苗期、扬花期、果实膨大期亩用量30～50g，兑水均匀喷雾；棉花苗期、蕾期、铃期、吐絮收花期用量30～60g/亩，兑水均匀喷雾，防旱期26～32天。

The main characters of new cotton hybrid JiH239 were analysed based on the results of Hebei Cotton Regional Test in 2003~2004. The results showed that JiH239 was high yield, disease-resistance and fiber length and strength were better than CK cultivar, micronaire value was a little high. The Bt toxic protein gene expression levels was higher than bollworm-resistant CK Zhongmiansuo41 in different growing period. The purity of bollworm-resistant was higher than Zhongmiansuo41 in seeding period and no significant variety in bud period and flower-boll period.

笔者以2003~2004年河北省棉花品种区域试验结果为依据，分析了棉花新杂交种冀H239主要性状特征，结果表明，冀H239产量突出，抗病性强，纤维长度、纤维比强度优于对照，马克隆值偏高；苗期、蕾期、花期和铃期棉叶中Bt杀虫蛋白表达量、苗期抗性纯合度均高于抗虫对照品种中棉所41；蕾期和花铃期抗性纯合度与中棉所41差异不显著。

Therefore, it is of great significance to increase cotton production by choosing a satisfied cotton variety of more boll setting, low fall off rate, more three-boils and appropriate height.

因此，选择结铃数多，脱落率低、三桃数量高、株高适宜的品种对提高棉花产量具有重要意义。

With high quality cotton Yuma No. 1 (Gossipier Hirsutum. L) as the testing material, different combinations of population density, fertilizer and DPC chemical spraying were adopted to study the dynamic changes of endogenous hormone contents, the vigor of source-sink and the nutrient transportations from boll walls to lint cotton as well as fiber qualities on different positions.

本论文以高品质棉花渝棉一号为材料，通过密度、肥料和DPC化控等不同水平的调节，从不同部位棉铃的源库活性、内源激素、铃壳中养分运转、棉花品质等方面着手研究高品质棉花渝棉一号不同部位的棉铃发育及其调节机理。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。