directive breeding 中文意思是什麼
directive breeding
解釋
定向發育-
Gene engineering technology is more superior than the cross breeding and directive breeding technology with its short cycle, low cost and high benefit. though traditional breeding technology has been used for a long time. now the direct reports for the changes of the flower color by the chi ( chalcone isomerase ) gene are a few what we known.
關于花色結構基因查爾酮異構酶chi （ chalconeisomerase ）基因對花色改變的直接報道很少，因此，本論文選用了chi基因為目的基因，以純深紅色和純白色矮牽牛（ petuniahybidavilm . ）為材料，研究了chi基因的共抑制和反義抑制以及表達產物增加對花色改良的作用，並在花色改變植株中首次觀察到花器官變異。 -
The directive thinking is : basis of resources breeding and management and development and utilization ; leading by feature industry such as forest industry and forest tourism ; aiming at meeting the need of market and public environment construction ; guiding at systemic, synthetically and stereoscopic development ; building up region industry group and industry train. on the basis of analysis industry position, it studied the relation between industry system and industry group and the relation between industry group and industry train. using theorical pattern, it described the relation and degree of coordination in industry trains and suggested the policy of adjustment of industry structure and advancement for state - owned forest region
本文界定了林業的產業性質，在三次產業分類法的基礎上提出四次產業分類法，提出了「零級產業（環境產業） 」概念，辨析了環境產業與林業產業的相關關系；分析了森林三大效益?成本關系；分析國有林區產業單一狀況的弊端；從經濟、社會和生態三方面分析了產業協同發展的價值；提出國有林區產業體系建立的指導思想：以資源培育與開發利用產業為基礎和龍頭，以特色產業? ?如林產工業、森林旅遊等為主導，以滿足市場需求和公益環境建設需求相兼顧為目標，以系統、綜合、立體開發為指針，建立具有區域特點的、協調的產業群和產業鏈；在產業位勢分析的基礎上，勾畫了產業體系與產業群、產業群與產業鏈之間的相關關系：運用理論模型描述產業鏈之間的相關關系及協同度。 -
Directive breeding of microalgae and effects of it on environment factors in prawn pond
蝦池微藻定向培育及其對養殖環境因子的影響 -
The result worked out here will provide strong scientific foundation and effective research approach when it comes to the research of wood quality and it ' s forming mechanism, wood transgene and directive breeding
這一結果將為木材性質研究、木材性質形成機理、樹木優質種質資源培育、樹木轉基因工程、定向培育材質改良的樹木新品種提供強有力的科學依據及研究方法。
分享友人