关键词: 番茄, 生物防控, 果实品质, 产量, 发病率, 主成分分析

Abstract: Taking tomato "Ruifen 1" as experimental material, this paper studied the effect of different control measures on tomato fruit quantity, quality and disease incidence in greenhouse, so as to identify the best prevention and control measure for high quality and high yield of tomato in greenhouse. The paper set up 4 treatments, including the control (W1), chemical pest prevention and P-chlorophenoxyacetic acid pollination (W2), biological pest prevention and P-chlorophenoxyacetic acid pollination (W3), biological pest prevention and bumblebee pollination (W4). The main components analysis method was used to evaluate the twelve indexes, including single fruit weight, vitamin C content, titrate acid content, soluble sugar content, soluble solid content, sugar acid ratio, solid acid rate, taste acceptance, physiological disease fruit incidence rate, late blight incidence rate, gray mold incidence rate, and leaf mold incidence rate. The results showed that the 12 indicators of the tested tomato were converted into 2 principal components, representing 88.57% genetic information of the main quality traits. Comprehensive score ranking was W4>W3>W2>W1. Treatment W4 (bumblebee pollination under biological prevention measure) had the highest comprehensive score. The plants under W4 treatment had good field conditions and low disease incidence rate. Therefore, through biological control measures combined with bumblebee pollination can improve tomato yield and quality, reduce disease occurrence. These results provided technological guidance for tomato cultivation.

Key words: tomato, biological prevention and control, fruit quality, yield, disease incidence, principal component analysis