加工番茄丰产性状和品质性状的典型相关分析

 以23个加工番茄品种（系）为试材，将28个性状根据生物学意义归纳为性状组，对性状和性状组进行基因型值相关分析和典型相关分析。结果表明：对产量影响最大的因素是单株结果数，而单株结果数与均果重之间存在着显著的负相关，因此在加工番茄的丰产育种中，应选择结果数较多、果重适中的材料；可滴定酸与V-C之间存在着显著的负相关，通过对可滴定酸的选择可间接地对V-C进行选择；在相关性上起作用的性状主要有开花期、每果序果数、单株果数、均果重、果实横径、V-C和茄红素等，为了选育丰产、优质的加工番茄新品种，应重视对这些性状的选择。

Canonical Correlation Analysis Among High Yield and Quality Characters of Processing Tomato (Lycopersicon esculentum Mill)

23 processing tomato cultivars (breeding lines) were used as materials,and their 28 characters were divided into different groups according to biological sense. The genotypic and canonical correlation among those characters were studied. The conclusions were obtained as follows:The factor which had great effect on the yield was fruit number per plant,but there was a significantly negative correlation between fruit number per plant and fruit weight,so the material that can bear more fruit and whose fruit weight is moder ate should be selected in high yield breeding. There was a significantly negative correlation between V-C and titrationable acid, titrationable acid could be used as an indirect trait for selecting V-C. The characters that have important effect on correlation included the date of flowering,the fruit number per inflorescence, fruit number per plant,fruit weight, V-C and lycopene, thus, attention should be paid to these characters in high yield and quality breeding.