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我国杂种小麦走向生产的关键策略
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科技导报 | 专家建议 1997,15(9710): 27-28
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科技导报 |专家建议 1997 , 15 (9710) : 27 -28
我国杂种小麦走向生产的关键策略
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张改生, 刘宏伟, 王军卫, 赵惠燕
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    西北农业大学小麦研究所,陕西杨陵712100
Problems in Applying China’s Hybrid Wheat to Production and Their Solutions
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    出版时间: 1997-10-10
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    植物杂种及其杂种优势的研究与利用,已在实际生产上获得了巨大的经济效益。我国已一跃成为世界上第一个成功地利用水稻杂种优势的国家;我国杂种油菜,无论是在各类雄性不育系的选育方面,还是在三系杂种的实际应用方面均已居于世界前列。目前,我国人口剧增,耕地却在逐年减少,短期内大幅度提高粮食产量已成为我国当前国计民生的头等大事,而在较短时间内能尽快见效,又以提高粮食单产水平显得特别重要。但从当前的研究和生产来看,现有的育种方法(主要是常规育种),在进一步提高单产方面,虽仍有潜力可挖,但幅度有限、难度较大。
    张改生;刘宏伟;王军卫;赵惠燕. 我国杂种小麦走向生产的关键策略. 科技导报, 1997 , 15 (9710) : 27 -28 .
    . Problems in Applying China’s Hybrid Wheat to Production and Their Solutions[J]. Science & Technology Review, 1997 , 15 (9710) : 27 -28 .

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    • 首发时间:1997-10-10
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    2种不同金属材料的力学参数

    Family
    属数
    Number of
    genus
    种数
    Number of
    species
    占总种数比例
    Percentage of
    total species (%)

    Genus
    种数
    Number of
    species
    占总种数比例
    Percentage of total
    species (%)
    鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
    小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
    多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
    红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
    小菇属 Mycena 11 5.26
    光柄菇属 Pluteus 5 2.39
    红菇属 Russula 17 8.13
    栓菌属 Trametes 5 2.39
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