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1979年我们创造了“棉枯萎抗性定向培育法”。We developed a directive cotton breeding method of resistance to Furarium through 1974—1979.

该文具体论述了意杨优质胶合板材的要求及其进行定向培育的措施。This paper analyses the demands on the trees of producing plywood. And it also suggests the measures for directive breeding.

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定向培育阔叶树工业人工林是解决我国木材紧张局面的根本途径。Oriented cultivation of hardwood industrial plantation was the fundamental way to resolve the tense situation of Chinas' timber.

从实生桑选出优良单株定向培育和系统选择，育成果用桑品种红果1号。A fruit mulberry variety "Hongguo 1" was bred by means of the pedigree selection and definite cultivation from mulberry seedlings.

本研究的结果对樟子松人工林的定向培育和木材加工利用具有指导意义。The optimal silvicultural strategy for growing both construction-wood and pulpwood products Socts Pine plantation forest was discussed.

利用边缘效应理论，开展群落优化结构，定向培育速生丰产林。Cultivating fast growth and high productivity plantation directionally in optimal community structure by use of forest edge effect theory.

为解决苗木培育的技术难题，作者提出了苗木定向培育的概念。In order to tackle with the technical problems of seedling cultivation, the authors put forward the concept of directed cultivation of seedlings.

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土壤条件及造林密度对林木生长的影响，还对毛白杨新无性系生理及造纸特性进行了研究，以期为毛白杨新无性系定向培育提供依据。The physiological and papermaking characteristics of the three new clones were also studied in order to guide oriented cultivation of new clones of Populus tomentosa.

竹子遗传改良工作今后着眼于定向培育营养价值高、风味好的笋用竹种，抗旱、耐久、纤维素含量高的纸浆竹种及观赏性强的园林竹种。Hereafter, bamboo breeding should focus on those species for nutritious and tasty shoot, for pulp-making with drought-resistance and durability, and for ornamental use.

为解决苗木培育与造林相脱节的问题，本文首次提出了苗木定向培育的概念。In order to address the issue of disconnection between seedling cultivation and forestation, the author first puts forwards the concept of directed cultivation of seedlings.

并且可以有针对性地对林木材质进行改良，定向培育，进而提高重要经济林木材和木材纤维的品质与产量。The new way may carry on the improvement target-oriented to the forest material quality and then enhance the quality and the output of important economic forest lumber and the wood fiber.

因此杨树木材的解剖结构可以作为评价杨树材性、品质的指标和选种育种及定向培育的重要依据。So the important basis that the dissection structure of the poplar timber can be cultivated as the index , seed selection breeding and orientation of appraising the poplar material, quality.

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随着DNA重组技术的发展，基因工程技术为这一目标的实现奠定了基础，这也为定向培育新的品种开辟了一条新途径。Now, with the development of DNA-recombination technology, a real foundation has been established to achieve the goal, futhermore a new way of orientation-breeding varieties is being explored.

采用生物技术与常规育种方法相结合，分离棉花抗病相关基因，定向培育抗病新品种，是控制病害最简单易行且行之有效的途径。Applied with combination of biotechnology and traditional breeding, we can screen cotton resistance-related genes, cultivate new breed directionally which is the easiest way to control disease.