调环酸钙对麦后移栽加工番茄产量与品质调控效果研究OA

This study focuses on after-wheat processing tomatoes in the Shihezi region of northern Xinjiang,addressing issues such as stress-induced growth,shorter growth periods,and reduced yield and quality caused by summer high temperatures and early autumn frosts.It investigates the effects of the growth retardant prohexadione-calcium(Pro-Ca)on controlling excessive vegetative growth and regulating yield and quality.The experiment included three concentration treatments:750 g·hm-2(P1),900 g·hm-2(P2),and 1 050 g·hm-2(P3),applied via foliar spraying at full bloom and fruit setting stages,with a water spray group as the control(CK).The results showed that After the application of Pro-Ca,the effect of controlling excessive vegetative growth and the fruit setting ability per plant were significantly enhanced.Compared with the control group,it significantly increased the red-ripening rate and yield,although no significant differences were observed among the different treatment concentrations.Among them,the P2 treatment achieved a red-ripening rate of 67％and a yield of 126 246 kg·hm-2.representing increases of 42.6％and 79.6％,respectively,compared to the control.Pro-Ca also significantly increased the soluble solids content by 12.5％～15％,which can reduce the processing cost ratio.However,it had no significant effect on quality indicators such as lycopene content and viscosity that affect the quality of tomato products.Overall,in this study,the application of prohexadione-calcium significantly improved the yield and soluble solids content of after-wheat processing tomatoes,with a recommended dosage of 900 g·hm-2.These findings provide a theoretical basis for the efficient cultivation and further in-depth research of after-wheat processing tomatoes.