| 营养元素的使用对马铃薯脱毒组培苗生长的影响 |
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| 引用本文： | 杨琼芬,卢丽丽,包丽仙,白建明,李先平,潘哲超,赵盈兰,隋启君.营养元素的使用对马铃薯脱毒组培苗生长的影响[J].中国马铃薯,2012(4):193-198. |
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| 作者姓名： | 杨琼芬 卢丽丽 包丽仙 白建明 李先平 潘哲超 赵盈兰 隋启君 |
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| 作者单位： | 1. 云南省农业科学院经济作物研究所, 云南 昆明 650205
2. 大理学院农学与生命科学学院, 云南 大理 671000 |
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| 基金项目： | 云南省自然科学基金项目(2010CD004);云南省现代农业马铃薯产业技术体系[云农科字(2009)53号];国家马铃薯产业技术体系(CARS-10-P07) |
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| 摘 要： | 以马铃薯脱毒组培苗为试验材料,对N、P、K、Ca、Mg 5种元素的缺失、适量和加量而影响马铃薯脱毒组培苗生长状况进行试验研究。结果表明:各种元素的用量对组培苗的初生根时间影响较小,无明显差异;不同品系的脱毒组培苗对各种元素的需求量不同,总的来说,P、Ca、Mg的加量使用能够促进组培苗的生长;各种元素的缺失和加量对组培苗的黑尖、分枝等不良性状的影响以及对组培苗的有效叶片数、生根率、平均根长、平均株高等指标的影响存在明显的品系间差异。因此,建立马铃薯脱毒组培苗的快繁体系要根据繁育品系的不同,使用相应的优化培养基,这样既能减少马铃薯组培苗生长过程中的黑尖、分枝和苗弱等现象,又能促进生根和有效叶片的形成,保障和提高马铃薯脱毒组培苗的质量。
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| 关 键 词： | 马铃薯 脱毒组培苗 营养元素 |
Influence of Nutrient Elements on in vitro Potato Plantlets |
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| YANG Qiongfen,LU Lili,BAO Lixian,BAI Jianming,LI Xianping,PAN Zhechao,ZHAO Yinglan,SUI Qijun.Influence of Nutrient Elements on in vitro Potato Plantlets[J].Chinese Potato,2012(4):193-198. |
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| Authors: | YANG Qiongfen LU Lili BAO Lixian BAI Jianming LI Xianping PAN Zhechao ZHAO Yinglan SUI Qijun |
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| Institution: | 1(1.Economic Crop Research Institute,Yunnan Academy of Agricultural Sciences,Kunming,Yunnan 650205,China; 2.Department of Agriculture and Biological Science,Dali University,Dali,Yunnan 671000,China) |
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| Abstract: | The effects of various contents of N,P,K,Ca,and Mg were studied on growth of potato plantlets using the virus-free potato plantlets as material.The results showed that the content of various nutrition elements had little effect on the time of rooting.The plantlet growth of different clones demanded for different nutrient elements.On the whole,increase of P,Ca,and Mg could promote the growth of virus-free potato plantlets.Different contents of these elements played various roles in different clones,including black tips,branches,number of effective leaves,rooting rate,root length and plant height.Therefore,Different media should be designed based on different potato clones for the establishment of the multiplication system of virus-free potato plantlets.The use of optimized medium could reduce the black tip,branching and weak plantlet,promote the growth of roots and effective leaves,and improve the quality of virus-free potato plantlets. |
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| Keywords: | potato virus-free plantlet nutrient element |
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