基因工程技术的出现为棉花品质改良和病虫害防治提供了一个有力手段。
Gene engineering has provided a useful tool for improvement in cotton quality and biological protection from pests.
迄今为止，我国棉花品质育种虽然取得了很大的进步，但纤维强度的提高仍较缓慢。
So far, great progress has been made in cotton quality breeding in our country, but the improvement of fiber strength still lags behind.
眼下正是棉花品质和产量形成的关键阶段，持续阴雨天气，影响了棉花裂铃吐絮及采摘，也推迟了新棉的上市时间。
This is cotton quality and yield formation of key stage, continuous wet weather, affected cotton crack open bolls and pick, the bell also delayed the time to market showed.
请迅速寄来备有存货的中、上品质棉花样品与价格表，不胜感激。
We shall be glad if you would send us by return pattern and prices of good and medium quality cotton available for stock.
表明打顶时间对棉花产量和棉纤维品质具有一定的调节效应。
Different tip pruning times have certain regulation effect on yield and fiber quality of cotton.
棉花生产中棉铃的重量及其纤维品质存在时空上的差异，这是客观事实。
It is true that there is temporal and spatial difference for weight and fibre quality of cotton bolls.
生育期适度缺水可以提高棉花的品质。
The moderate water deficit can elevate the quality of cotton.
通过盆栽试验、田间试验研究了紫色土壤施氮对棉花产量品质的效应。
The effects of nitrogen on cotton yield and fiber quality in purple soil have been investigated by pot and field test.
通过田间试验，研究了膜下滴灌棉花的作物产量、品质和作物缺水指标(CWSI)定量关系。
A field study was conducted to determine the relationships between Crop Water Stress Index (CWSI), yield, and quality of cotton under drip irrigation with mulch.
但由于棉花迟播而迟发，又常易徒长，蕾铃脱落更多，结铃推迟，影响产量和品质。
Yet it will affect yield and quality of cotton, as later sowing always results in later development, excessive vegetative growth and boll shedding.
优良的纤维品质是世界棉花育种的主要目标之一。
The high fiber quality is one of the major goals in the cotton breeding of the world.
棉花的不同开花期和结铃部位对铃重、铃期和纤维品质有显著影响。
Different flowering dates and bolling positions had a significant effect on the individual boll weight, boll period and fiber quality of cotton.
因此，提高棉纤维产量和改良棉纤维品质始终是棉花育种工作的主要目标。
As a main product of cotton, the quantitative and qualitative improvements to cotton fibers have been a focus of cotton breeding.
因此，提高生育后期的群体光合速率，延长其高值持续时间，对于增加棉花产量及改善品质具有重要作用。
It indicates that improving canopy apparent photosynthesis rate in latter growing period and prolonging its duration are important to improve cotton yield.
棉花是世界上重要的经济作物，提高皮棉产量和改良纤维品质具有重要的经济效益。
It becomes the main means to improve the lint yield and the quality of fiber by using heterosis that had proved to be existed within different cotton varieties.
本文综述了棉花纤维品质各因子的遗传规律及其研究进展。
The genetic rule and research progress of cotton fiber character are summarized in this paper in terms of various quaters.
特别是当前推广的转基因杂交棉对钾的需求更多，研究钾对棉花生长发育、产量及品质的影响受到重视。
In particular, the current promotion of genetically modified hybrid cotton needs more potassium, study on effect of potassium nutrition on cotton growth, yield and quality was important.
综述了利用外源基因导入手段进行棉花纤维品质改良的相关研究进展，旨为棉花分子育种研究提供帮助。
The research progress of cotton fiber quality improvement using exogenous genes was summarized to provide help for cotton molecular breeding.
近几年，随着纺织技术的不断提高，对棉花的纤维品质尤其是纤维强度和细度的要求也越来越高。
In recent years, improvement in the quality of cotton fiber has been extremely important because of changes in spinning technology.
检验杂质的含量和分析杂质的种类，有助于改进棉花初步加工的工艺措施，提高皮棉品质。
Inspecting amount of impurity and analyzing kinds of impure cotton help to improve on technologic methods for elementary processing cotton and lint of good quality.
土壤干旱，棉花植株矮小，吸收养分量少，发育不良，降低产量和品质；
In the arid soil, cotton plants stunt and absorb sm-all amount of nutrients, so they develop unheathily.
钾素有“品质元素”之称，是棉花生长发育所必需的大量元素之一，对棉花纤维品质有重要的影响作用；
Potassium(K) named "quality element" is one of the important elements which cotton needs in growth and development, and it plays an important part in fiber quality formation of cotton.
通过分析，指出在生产B级棉花打包钢丝时，关键是线材的化学成分均匀。化学成分对钢的内部组织、性能及成品质量起决定作用。
Through the analysis, pointed out the key is the wire rod chemical composition is even when produces the B-grade steel wire for cotton packaging.
而品质一致的外层，则是以羊毛、尼龙和棉花织成的毛毡，泡水收缩之后再加以烘干而制成。
To craft a consistent cover, wool, nylon and cotton are woven into a felt that is soaked, shrunk and dried.
因此利用基因工程手段克隆育性相关的基因，并加以利用创造理想的棉花雄性不育系类型，可能成为促进杂种优势利用，提高棉花产量和品质的新途径。
Therefore, cloning male fertility-related genes and used to create the ideal male sterile line is a new way of improving the cotton yield and quality by cotton heterosis application.
棉花是世界性重要的经济作物，棉纤维品质改良是棉花育种的主攻目标之一。
Cotton is an important cash crop. Improving the fiber quality is the one of main breeding objectives in cotton breeding.
缺钾及其导致的棉花早衰是制约我国棉花产量和品质提高的重要因素。
Potassium deficiency lead to premature senescence of cotton is constraint China's cotton yield and quality of increase of the important factors.
对棉花生产的原棉品质、主推品种、主推技术、创新技术等进行定位；
Orientation of the raw cotton quality, the main variety, the main technology, innovative technology and so on;
1996年的棉花高产简化栽培技术体系研究结果再一次表明：简化棉的丰产性、早熟性与纤维品质均与常规棉相当；
Study in 1996 show again that:the cotton plant cultivated from the simplified system was of about the same yield, maturity and fibre quality as the plant cultivated from the normal system;
1996年的棉花高产简化栽培技术体系研究结果再一次表明：简化棉的丰产性、早熟性与纤维品质均与常规棉相当；
Study in 1996 show again that:the cotton plant cultivated from the simplified system was of about the same yield, maturity and fibre quality as the plant cultivated from the normal system;
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