| 根结线虫对生姜大量元素吸收特性的影响 |
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| 引用本文： | 郭衍银,王秀锋,徐坤,朱艳红,李莉娜.根结线虫对生姜大量元素吸收特性的影响[J].西北农业学报,2003,12(4):93-97. |
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| 作者姓名： | 郭衍银 王秀锋 徐坤 朱艳红 李莉娜 |
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| 作者单位： | 山东农业大学园艺学院,泰安,271018 |
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| 基金项目： | 山东省科技攻关项目"蔬菜安全生产关键技术支撑体系研究"(022090131). |
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| 摘 要： | 研究结果表明,生姜感染根结线虫后,叶片中氮磷钾镁含量降低,而钙含量升高,从而引起叶片黄化、植株早衰和根茎瘦小。根茎中积累较多的氮磷钾,且根茎(Ca Mg)/K下降,没有表现出抗性,为根结线虫生长和发育提供了良好的营养条件,这是造成根茎疣裂的重要原因。根系中氮磷钾含量均有不同程度的降低,且在根茎迅速膨大期(Ca Mg)/K上升,获得部分抗性,因此,不利于根结线虫的发育,在生姜根系上无明显根结。
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| 关 键 词： | 生姜 根结线虫 矿物元素 吸收特性 |
| 文章编号： | 1004-1389(2003)04-0093-05 |
| 收稿时间： | 2003/5/19 0:00:00 |
| 修稿时间： | 2003年5月19日 |
Effects of Root-knot Nematode on the Absorption Characteristics of Mineral Elements in Ginger |
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| GUO Yan-yin,WANG Xiu-feng,XU Kun,ZHU Yan-hong and LI Li-na.Effects of Root-knot Nematode on the Absorption Characteristics of Mineral Elements in Ginger[J].Acta Agriculturae Boreali-occidentalis Sinica,2003,12(4):93-97. |
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| Authors: | GUO Yan-yin WANG Xiu-feng XU Kun ZHU Yan-hong and LI Li-na |
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| Institution: | GUO Yan-yin,WANG Xiu-feng,XU Kun~*,ZHU Yan-hong,LI Li-na |
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| Abstract: | The results indicated that south root-knot nematode infection reduced the concentration of N, P, K and Mg in leaves, while the Ca concentration was increased. Which led to the yellow leaves, plant prematurely senile and thin rhizome. However, infection increased rhizome N, P and K, which was favorable to the growth and development of south root-knot nematode. Besides, the decrease of (Ca Mg)/K indicates that there no resistance reaction in rhizome. The two reasons mentioned above made the south root-knot nematode development in rhizome and rhizome verruca split. The conditions of roots: lower concentration of N and K at some growth stage, increased of (Ca Mg)/K at rhizome vigorous growth stage, were not favorable to the development of south root-knot nematode. So there no obvious root knot in ginger roots. |
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| Keywords: | Ginger Root-knot nematode Mineral elements Absorption chatacteristics |
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