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中国玉米的早期栽培与引种 被引量:13
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作者 向安强 《自然科学史研究》 CSCD 1995年第3期239-248,共10页
前人对中国玉米栽培史作了大量研究工作;然而,玉米是中国原生植物还是引种作物,其在本土栽培的历史或引种传入中国的时间及途径等,至今还是未有公论、有待继续研究的课题。该文系统述评前人研究所得出的诸多观点后,认为中国也是玉... 前人对中国玉米栽培史作了大量研究工作;然而,玉米是中国原生植物还是引种作物,其在本土栽培的历史或引种传入中国的时间及途径等,至今还是未有公论、有待继续研究的课题。该文系统述评前人研究所得出的诸多观点后,认为中国也是玉米原产地之一,而国外玉米的传入则是多渠道的。 展开更多
关键词 玉米 栽培 引种 中国
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Indigenous Fruit Trees of Tropical Africa: Status, Opportunity for Development and Biodiversity Management
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作者 Rasheed Olufemi Awodoyin Oluseun Sunday Olubode +3 位作者 Justin Ugochukwu Ogbu Rasheed Babatunde Balogun Jonah U. Nwawuisi Kalu O. Orji 《Agricultural Sciences》 2015年第1期31-41,共11页
Tropical fruit trees constitute important biological resources in the global agrobiodiversity context. Unlike the tropical fruit trees of American and Asian origin, indigenous fruit trees (IFT) of tropical Africa have... Tropical fruit trees constitute important biological resources in the global agrobiodiversity context. Unlike the tropical fruit trees of American and Asian origin, indigenous fruit trees (IFT) of tropical Africa have scarcely achieved the status of international recognition in commodity markets and research arena outside Africa. This paper presented a critical review of the status of IFT in the Tropical African sub-regions (of West Africa, Central Africa, East Africa, Southern Africa and the Indian Ocean Islands) in relation to the introduced naturalised fruit trees from tropical America and Asia, threats to the diversity and sustainable use of IFT, analysis of the opportunities and challenges of developing IFT, as well as targets for crop improvement of the rich IFT of Tropical Africa. Domestication programme via relevant vegetative propagation techniques for priority IFT of the sub-regions was examined and advocated, in addition to the adoption of complementary conservation strategies, including Field GeneBanks in the management of the continent’s IFT diversity. 展开更多
关键词 BIODIVERSITY Conservation crop Improvement DOMESTICATION Indigenous FRUIT Trees introduced Species Tropical Africa
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植物外源DNA导入技术及其在作物改良上的潜力 被引量:2
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作者 刘萍 徐兆桢 张文杰 《宁夏农学院学报》 1995年第3期92-93,共2页
本文综述了近年来植物外源DNA导入技术概况及各种具体的导入实施方法,指出该技术在作物改良上具有一定的潜力。
关键词 外源DNA导入 作物改良 育种
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