Effects of facility cultivation on fruit quality of'Cocktail'grapefruit in Hubei Province
The differences in fruit quality of'Cocktail'grapefruit between the mode of facility cultiva-tion and open cultivation(CK)were studied to improve the quality of'Cocktail'grapefruit in Hubei Prov-ince.The results showed that the single fruit weight,transverse and longitudinal diameter and fruit shape index of facility cultivation were larger than those of CK.There was no significant difference in peel hard-ness during fruit development.There was a significant difference in peel hardness between facility cultiva-tion and CK from 227 days after anthesis.Facility cultivation significantly increased the content of soluble solid in fruits to 10.43%.The content of titratable acid and Vc in facility cultivation was higher than that in CK.The results of GC-MS analysis showed that facility cultivation increased the content of sucrose in fruits to 49.63 mg/g.The results of real-time quantitative PCR analysis showed that facility cultivation in-creased the content of sucrose in fruits by upregulating the expression levels of CsSPS2,CsSUS2 and Cs-SUS4.It is indicated that facility cultivation can improve the fruit quality of'Cocktail'grapefruit.
'Cocktail'grapefruitfacility cultivationfruit qualitysugar and acid
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