Abstract:
【Objective】 The aim of this study is to investigate the effects of sand- substratebag cultivation (BC) and trough cultivation (TC) on tomato yield and quality, and to verify the advantages and effects of different planting modes, aiming to provide technical support for desert and Gobi facility agriculture in Xinjiang.
【Methods】 The tomato varieties under the test were Kardiya 800 and Shijia 1867. This study statistically analyzed the yields of the two tomato varieties under different planting modes, and tested their soluble solid content (SSC), lycopene (LYC) content, vitamin C (VC) content, and sugar-acid ratio. Principal component analysis was applied to comprehensively evaluate the quality of tomatoes grown under different planting modes.
【Results】 There was a significant difference in tomato yields among different planting modes (
P<0.01), with an average yield increase of 9.5% in Trough cultivation compared to Sand- substratebag cultivation. Variance analysis of planting modes on tomato quality indicators showed that VC content reached a very significant level (
P<0.01), and had a significant impact on Lycopene (
P<0.05). Compared to Trough cultivation mode, BC mode had higher VC content and sugar-acid ratio by 22.7% and 15.4% respectively. In contrast, Trough cultivation mode had higher Soluble solid content and Lycopene content by 2.5% and 20.3% respectively compared to BC mode. Principal component analysis was used to comprehensively evaluate the four quality indicators of Soluble solid content, Lycopene, VC content, and sugar-acid ratio in the two tomato varieties under BC and Trough cultivation modes, the scoring order was TC Shijia 1867 > BC Shijia 1867 > BC Kardiya 800 > TC Kardiya 800.
【Conclusion】 The BC mode significantly improves the VC content and sugar-acid ratio of tomatoes, enhances their taste quality and shortens the planting cycle, making it a potential application in the northern Xinjiang region. The Trough cultivation mode was beneficial to increase tomato yield and Lycopene content, the average yield of 2 tomato varieties is 158.3 t/hm
2, which has reached the higher yield level among the greenhouse tomato with stronger potential for promotion and application in desert and Gobi facility agriculture.