‘LD-1’砧米良一号猕猴桃的耐涝性

猕猴桃是一类不耐涝的植物,为了解决猕猴桃的涝害问题,吉首大学近年来尝试用‘LD-1’作为猕猴桃的耐涝性砧木。该研究以米良一号实生苗砧米良一号猕猴桃和‘LD-1’砧米良一号猕猴桃为材料,观测根系淹水后叶片可溶性糖含量、丙二醛含量、叶绿素含量、可溶性蛋白质含量、SOD活性和形态的变化规律,探讨了‘LD-1’砧米良一号猕猴桃的耐涝性。结果表明：（1）米良一号实生苗砧米良一号猕猴桃根系淹水后,可溶性糖含量6 d后极显著（P〈0.01）升高;丙二醛含量8 d后显著（P〈0.05）升高;叶绿素含量和可溶性蛋白质含量没有显著变化;SOD活性6 d后显著（P〈0.05）升高,8 d后不再有显著变化;叶片2 d...

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Bibliographic Details
Published in广西植物 Vol. 36; no. 6; pp. 646 - 650
Main Author 唐玲玲 向小奇 杨江平 彭明峰
Format Journal Article
LanguageChinese
Published 吉首大学 武陵山猕猴桃研究中心，湖南 吉首 416000 2016
吉首大学 生物资源与环境科学学院,湖南 吉首,416000%吉首大学 生物资源与环境科学学院，湖南 吉首 416000
Subjects
LD-1
形态指标
猕猴桃
生理指标
砧木
米良一号
耐涝性
physiological indexes
submergence tolerance
Actinidia deliciosa Miliang 1
砧木
形态指标
morphological indexes
耐涝性
米良一号
Actinidia
猕猴桃
生理指标
stock
LD-1
Online AccessGet full text
ISSN1000-3142
DOI10.11931/guihaia.gxzw201410050

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Summary:猕猴桃是一类不耐涝的植物,为了解决猕猴桃的涝害问题,吉首大学近年来尝试用‘LD-1’作为猕猴桃的耐涝性砧木。该研究以米良一号实生苗砧米良一号猕猴桃和‘LD-1’砧米良一号猕猴桃为材料,观测根系淹水后叶片可溶性糖含量、丙二醛含量、叶绿素含量、可溶性蛋白质含量、SOD活性和形态的变化规律,探讨了‘LD-1’砧米良一号猕猴桃的耐涝性。结果表明：（1）米良一号实生苗砧米良一号猕猴桃根系淹水后,可溶性糖含量6 d后极显著（P〈0.01）升高;丙二醛含量8 d后显著（P〈0.05）升高;叶绿素含量和可溶性蛋白质含量没有显著变化;SOD活性6 d后显著（P〈0.05）升高,8 d后不再有显著变化;叶片2 d后出现轻度萎蔫,10 d后全部枯死。（2）‘LD-1’砧米良一号猕猴桃根系淹水后,可溶性糖的含量4 d后显著（P〈0.05）升高;丙二醛含量、叶绿素含量、可溶性蛋白质含量和SOD活性无显著变化;叶片10 d后未出现显著的萎蔫和枯死现象,30d后仍正常。这说明米良一号实生苗砧米良一号猕猴桃耐涝性较弱,‘LD-1’砧米良一号猕猴桃耐涝性较强,‘LD-1’作砧木显著增强了米良一号猕猴桃的耐涝性。该研究结果为‘LD-1’在米良一号猕猴桃栽培上的应用提供了依据。
Bibliography:Actinidia;submergence tolerance;stock;physiological indexes;morphological indexes
45-1134/Q
Actinidia deliciosa Miliang 1, cultivated by a research team of Jishou University, Hunan Province, is a fruit tree with high output and high nutrition value but poor flood resistance, so the research on water stress is of great impor-tance for its promotion. Some professors attempted to use Actinidia ‘LD-1’ as rootstocks to improve the submergence tol-erance of A. deliciosa Miliang 1 in recent years. But in order to further reveal the submergence tolerance of ‘LD-1’ stock-grafted A. deliciosa Miliang 1 from the physiological perspective, we selected the Miliang 1 seedling stock-grafted A. deliciosa Miliang 1 and the ‘LD-1’ stock-grafted A. deliciosa Miliang 1 as experimental materials, which were trans-planted to flowerpots outside the laboratory at Jishou University in December, 2013. When the condition permitted, we treated the roots of those two materials with flood and non-flood group respectively in July, 2014. And
ISSN:1000-3142
DOI:10.11931/guihaia.gxzw201410050