| 8个白菜型冬油菜品种抗寒性的初步评价 |
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| 引用本文： | 孙万仓,武军艳,曾军,朱慧霞,刘雅丽,张亚宏.8个白菜型冬油菜品种抗寒性的初步评价[J].湖南农业大学学报(自然科学版),2007(Z1). |
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| 作者姓名： | 孙万仓 武军艳 曾军 朱慧霞 刘雅丽 张亚宏 |
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| 作者单位： | 甘肃农业大学农学院 甘肃农业大学农学院 甘肃兰州 甘肃兰州 |
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| 摘 要： | 以8个抗寒性不同的白菜型冬油菜为试验材料,研究了冬油菜品种的抗寒性与越冬率、植物学特征、生长发育特性、干物质积累特性等指标的关系.结果表明:参试品种可划分为4种类型,即超强抗寒性品种、强抗寒品种、抗寒性品种和一般抗寒品种.抗寒性强的品种MXW-1,DQW-1冬前生长发育较缓慢,匍匐生长,叶色浓绿,叶脉微紫,越冬期叶片数偏少,平均为8～9片,较早进入枯叶期.根系发达,根冠比大.返青晚,成熟期晚,生育期较长.
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| 关 键 词： | 冬油菜 抗寒性 |
Primary evaluation of cold tolerance among eight winter Brassica rapa |
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| SUN Wan-cang,WU Jun-yan,ZENG Jun,ZHU Hui-xia,LIU Ya-li,ZHANG Ya-hong.Primary evaluation of cold tolerance among eight winter Brassica rapa[J].Journal of Hunan Agricultural University,2007(Z1). |
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| Authors: | SUN Wan-cang WU Jun-yan ZENG Jun ZHU Hui-xia LIU Ya-li ZHANG Ya-hong |
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| Abstract: | In this study,eight winter Brassica rapa cultivars were selected as materials,studied the relation between cold tolerance and botanic characteris-tics,growing period and dry matter accumulation.The results indicated:the eight winter rapeseed were divided into four groups:ultra winter-hardy cultivars,strong cold tolerance cultivars,cold tolerance cultivars and ordinary cold tolerance cultivars.The ultra winter-hardy cultivars(MXW-1,DQW-1) grew horizontally and their leaves were dark green or purple,their growing point undercut during the growth.And this type has strong root and longer growth period. |
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| Keywords: | winter rapa cold tolerance |
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