Studies are conducted on melting snow and keeping green by electric cable heating system on Beijing sports turf in winter, grass seed selection, and turf soil temperature field.
本文对北京地区草坪冬季电缆电热融雪保绿问题，草种的选择及土壤温度场进行研究，旨在对北京地区草坪电缆加热系统进行优化设计。
But the key of planting Protection is the selection of grass seed and Sowing method.
而植草防护成败的关键是草种、播种期及播种方法的选择。
This paper relates the selection of a method and technological conditions for extracting a colouring substance from sunflower seed husks.
本文叙述了从向日葵壳中提取色素的方法及工艺条件选择。
As to the city's green construction, we should also pay attention to"Incremental re-seed" and scientific selection of botanical variety.
漳州城市绿化建设还必须注意＂增量补种＂及植物种类的科学选择。
It is differ both from the method of "circulate line selection" for seed reproduction and from the method of "pure line breeding" for varieties development.
该方法既区别于单纯生产原种的“株系循环法”，也区别于选育新品种的纯系育种法。
The haploid plant is the best material for genetic research of carrot, and homozygous diploid formed by doubling chromosome of the haploid plant is also the best resource of breed seed selection.
而单倍体植株是胡萝卜遗传研究的最好材料，由单倍体植株染色体加倍而成的纯合二倍体，又是品种选育的最好资 源。
The invention provides tomato long stigma type high temperature sensitive male sterile line seed selection and a hybridized seed production method.
本发明提供了一种番茄长柱头型高温敏型雄性不育系选育及杂交制种方法。
The seed selection success of overlapping spike not only increases crop type, but also enriches the gene pool in barley.
它的选育成功，不仅增加了作物的类型，而且丰富了大麦的基因库。
Article 16 The State encourages and supports seed selection, breeding and propagation of fine varieties of aquatic species.
第十六条国家鼓励和支持水产优良品种的选育、培育和推广。
It is mainly applied for separation of conductor and non-conductor minerals and classification of planting materials instead of screening operation as well as food processing and seed selection.
主要应用范围：主要用于导体矿物与非导体矿物的分选，也可以代替筛分作业，用于多种物料的分级，以及用于粮食加工和部分选种工作中。
It is mainly applied for separation of conductor and non-conductor minerals and classification of planting materials instead of screening operation as well as food processing and seed selection.
主要应用范围：主要用于导体矿物与非导体矿物的分选，也可以代替筛分作业，用于多种物料的分级，以及用于粮食加工和部分选种工作中。
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