Studies On Local Adaptability And The Fruit Storability Of Israel Tomato

F-044,F-409 are tomato hybrids with high quality introduced from Israel,Their yield and quality behaves well in Israel,among the quality characters,the storability of their fruits is prominent.So in this study,their adaptability in Hefei area was initially researched from yield and quality.On this base,the study analysed the correlation between yield and quality,and researched the difference of fruit storability from physiological and biochemical aspects.Then the study researched the change of main nutritional quality during fruit ripening and storage.This study can provide theoretical guidance for this two Israel tomato hybrids planting in Hefei area.,and for their suitable harvest time and storage period.The main results were as follow:1.The adaptability of F-044 and F-409 behaves well in Hefei area.Their agronomic traits were obviously surpass the local cultivars;the yield of F-044 was highest,F-409 took the second place,while WanhongNO.3 was the lowest.The content of soluble sugar and soluble solid in F-044 and F-409 were lower than Qiangfeng and WanhongNO.3.but the content of organic acid,lycopene,Vc and the ratio of sugar to acid were higher than Qiangfeng and WanhongNO.3.2.During fruit ripening,The content of organic acid and Vc in F-044 and F-409 reached the peak at Hongshu stage,other characters reached the peak at Houshu stage. The ratio of sugar to acid and the content of soluble solid in Qiangfeng and WanhongNO.3 reached the peak at Houshu stage,while other characters reached the peak at Hongshu stage,their organic acid reached the peak even at Zhuanse stage.According to analysis of the results:F-044 and F-409 were suitable to harvest at Houshu stage, while Qiangfeng and WanhongNO.3 suitable to harvest at Hongshu stage.3.During fruit storage,the storability of F-044 was highest,F-409 took the second place,while WanhongNO.3 was the lowest.Correlation and path analysis indicated that the storability of fruit was decided by the content of protopectin and cellulose.While the protopectin and cellulose were mainly degraded by PG and cellulose during fruit softening.In the 15^th day after storing,the content of soluble sugar,Vc,lycopene and the WanhongNO.3 have dropped rapidly,and their commercial fruit rate were 73.3%and 70%,respectively.So the appropriate storage period for F-044 and F-409 were 15days; while for Qiangfeng and WanhongNO.3 were 10days.