番茄营养特征对果实产量的影响  

Effects of tomato nutritional traits on its fruit yield

作　　者：郝敏[1] 岳静[1] 张重丽[1] 张灵菲[1] 魏斌[1] 江小雷[1] 

机构地区：[1]兰州大学草地农业科技学院,甘肃兰州730020

出　　处：《草业科学》2011年第6期1030-1034,共5页Pratacultural Science

基　　金：国家自然科学基金项目(30770333);国家科技支撑项目(2009BAC53B04)和(2008BAD95B03)

摘　　要：利用室外盆栽方法,就3个不同番茄(Lycopersicon esculentum)品种的相对生长率、比叶面积、叶干物质含量、株高和单位叶面积根量等5个营养特征与果实产量的关系进行研究。结果表明,试验所采用的3种番茄在相对生长率、比叶面积、叶干物质含量、株高、单位叶面积根量等营养特征方面表现出较大的差异,因而在果实产量上也表现出显著差异。简单相关分析结果表明,果实产量分别与相对生长率和比叶面积等特征呈显著正相关,与植株高度无相关,而与叶干物质含量和单位叶面积根量呈负相关。但多元逐步回归分析方法对各性状与生物量相关性综合分析的结果表明,只有相对生长率、比叶面积与果实产量具有显著线性关系,其他营养特征与果实产量无显著相关性。由此证明,在探讨番茄营养特征与生产力关系时,不仅要考虑单个特征的作用,更要全面考虑多个特征之间的综合作用效果。Three kinds of tomatoes varieties was conducted to investigate effects of tomato nutritional traits,including relative growth rate,specific leaf area,leaf dry mass content,plant height and root mass per unit leaf area,on its fruit yields by a pot experiment.The results of this study showed that three kinds of tomatoes significantly differed in their measured nutritional traits.General linear correlation analysis indicated that fruit yields was significantly correlated with relative growth rate and specific leaf area,respectively,but not correlated with plant height,and negatively correlated with leaf dry mass content and root mass per unit leaf area.The stepwise multiple regression further analysis showed that the fruit yields was only positively correlated with relative growth rate and specific leaf area.This study suggested that it was better to consider multiple growth characteristics for determining the relationship between tomato functional traits and fruit yields.

关 键 词：番茄 营养特征 果实产量 

分 类 号：S641.2[农业科学—蔬菜学] Q945.1[农业科学—园艺学]