Then, the effects of irrigation in plastic film on cotton yield and quality are analyzed.
在此基础上，分析了膜下灌溉技术对棉花产质量的影响。
Potassium deficiency lead to premature senescence of cotton is constraint China's cotton yield and quality of increase of the important factors.
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。
Cotton is a full important economic crop, but cotton premature senility is one ofproblem mainly to affect cotton yield and quality in Tongling, Anhui province.
棉花是铜陵十分重要的经济作物，棉花早衰又是影响铜陵棉花产量和质量的主要问题之一。
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.
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。
Different tip pruning times have certain regulation effect on yield and fiber quality of cotton.
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。
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.
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。
Yet it will affect yield and quality of cotton, as later sowing always results in later development, excessive vegetative growth and boll shedding.
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。
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.
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。
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.
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。
The correlation among main yield and fiber traits of upland cotton with high fiber quality was investigated by using correlation and path analysis methods.
利用单相关、偏相关和通径分析等多种相关分析方法，研究了纺高支纱陆地棉主要产量、品质性状间的相关关系。
This paper reviewed the key diagnostic index and optimized regulating route of high yield population quality about mulch drip irrigation cotton.
论述了膜下滴灌棉花高产群体质量诊断的主要指标及群体优化调控途径。
The model of fertilizer application in cotton with high yield, quality and efficiency was made through the scientific experiments for many years.
当前，江西鄱阳湖区推广的棉花高产优质高效施肥方案，是通过多年的科学试验获得的。
The effects of nitrogen on cotton yield and fiber quality in purple soil have been investigated by pot and field test.
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。
In transgenic cotton variety breeding, it is likely to found out the high quality and high yield transgenic cotton variety within the suitable selections among every character.
在转基因抗虫棉育种中，应注意各性状间的动态平衡，有利于育成优质高产抗虫棉品种。
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.
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。
The diseases and insect pests and weeds of cotton have seriously restricted to increase the yield and quality of cotton.
棉花病虫草害是制约棉花产量和质量提高的重要原因之一。
The influence of different tip pruning times on yield and fiber quality was studied with the island cotton Xinhai16.
以海岛棉新海 16号为材料 ，研究了不同打顶期对产量和纤维品质的影响。
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；
The yield, resistance to Helicoverpa amigera and Pectinophora gossypiella, fiber quality of 36 varieties or strains of transgenic pest-resistant cotton were evaluated.
对36个转基因抗虫棉品种（品系）进行试验，比较了它们的产量、抗棉铃虫和红铃虫特性以及纤维品质之间的差异，并进行综合评价。
There are positive correlations of different degrees between yield and fiber quality characters in current cotton cultivars except for fineness.
相关遗传力通径分析显示细度是现代品种产量和品质同时改良的限制因子。
The cotton bred by the method has high yield and quality, barren resistance, high stress resistance as well as time and power saving and is convenient for popularization and application.
该方法选育的棉花品种产量高、品质好、耐瘠薄、抗逆性强，而且省时、省工，便于推广应 用。
The cotton bred by the method has high yield and quality, barren resistance, high stress resistance as well as time and power saving and is convenient for popularization and application.
该方法选育的棉花品种产量高、品质好、耐瘠薄、抗逆性强，而且省时、省工，便于推广应 用。
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