加工番茄果实品质研究初报

对31个加工番茄品种和杂交组合的主要感观品质、营养品质和加工品质进行测定。结果表明,番茄单果质量与纵径、横径和纵横径之积具有相关性,单果质量与纵横径之积之间相关系数高达0.9731。31个加工番茄品种和杂交组合的单果质量22.60～137.40g、果实硬度1.90～10.70kg·cm-2、果实红色度9.60～30.71、可溶性固形物3.43%～5.93%、可滴定酸0.21%～0.67%、可溶性糖1.89%～12.47%、糖酸比7.28～40.73,差异明显。其中果实硬度以昌农020、石红15号等较高,果色以E6203、U338×U924等红色度较高,可溶性固形物以U338×U924、U520×U338等较高,可滴定酸含量以U338×加州2、U924等较高,可溶性糖含量以U338×9-1、佳禾9号等较高,糖酸比以加州2×U520、U338×9-1等较高。杂交组合的品质优于亲本和对照新疆主栽品种里格尔87-5。综合品质指标表明,果实品质较好品种或杂交组合为U338×U924,其次是石红15号、加州2×U520和加州2×U924,而佳禾9号和U924×U370综合品质次之,对照里格尔87-5综合品质较为一般。

Primary Report about Fruit Quality of Processing Tomato

In this study, appearance quality, nutrient composition and processing quality were investigated on 31 processing tomato（Lycopersicon esculentum Mill.）varieties and crossing combinations. The results showed that obvious relevance existed between fruit weight and longitudinal diameter, latitudinal diameter, and their multiplication product, with the highest correlation coefficient of 0.970 1. Major differences existed in fruit weight, fruit hardness, red fruit degrees, soluble solids, titratable acid, soluble sugar content and sugar/acid ratio among different tomato cultivars and the crossing combinations. The variation range of these 7 different parameters were between 22.60-137.40 g, 1.90-10.70 kg&;#8226;cm-2, 9.60-30.71, 3.43 %-5.93 %, 0.21 %-0.67 %, 1.89 %-12.47 % and 7.28-40.73, respectively. The fruit hardness is the highest in‘Changnong 020’and‘Shihong No.15’. The red extent reaches the highest in E6203 and U338×U924. The soluble solids contents are the highest in U338×U924 and U520×U338. The titratable acid content is the highest in U338בJiazhou 2’and U924, and soluble sugar content is the highest in U338×9-1 and‘Jiahe No.9’. Sugar/acid ratio is the highest in ‘Jiazhou 2’×U520 and U338×9-1. The fruit quality of crossing combinations is better than that of parent plants and the main cultivars‘Liger 87-5’. Through the general quality analysis, the comprehensive quality is the best in U338×U924, relatively better in‘Shihong No.15’,‘Jiazhou 2’×U520,‘Jiazhou 2’×U924, while the less comprehensive quality falls into‘Jiahe No.9’and U924×U370. The fruit quality of wildly used cultivar‘Liger 87-5’is not so prominent.