Effects of two cultivation modes on the cluster region micro-environment,berry development and quality of marselan grape in turpan-hami basin
[Objective]To study the effects of two cultivation modes on the cluster micro-environment and fruit development of Marselan grape in Turpan-Hami Basin in the hope of providing reference for the se-lection of wine grape cultivation modes in production areas.[Methods]The research was carried out in Marse-lan grape with L-MVSP(Fruit setting height 40 cm,the treatment group)and H-MVSP(Fruit setting height 80 cm,the control group)in Turpan-Hami Basin,the changes of micro-environment index on the cluster re-gion and berry development index during fruit growth period,fruit quality and anthocyanin composition during harvest under two cultivation modes were compared and analyzed under two cultivation modes.[Results]The daily maximum temperature and daily average temperature of the cluster region micro-environment were lower for L-MVSP than for H-MVSP,with 1.66 and 2.21℃respectively,the sum of temperature difference excee-ding 35℃and the time of temperature exceeding 35℃were decreased for L-MVSP than for H-MVSP,with 39.25℃and 40.12 h respectively;The daily maximum humidity,daily minimum humidity and daily average humidity were 2.89％,1.70％and 2.64％higher,respectively for L-MVSP than for H-MVSP,the daily av-erage low humidity duration was 11.56 h lower for L-MVSP than for H-MVSP;The leaf canopy transmis-sion radiation,soil reflection radiation and total radiation were 36.94％,50.38％and 44.91％lower,respec-tively for L-MVSP than for H-MVSP.The L-MVSP was more benefit for fruit development than H-MVSP,tartaric acid,malic acid and ascorbic acid were higher for L-MVSP than H-MVSP at veraison,grape in L-MVSP had a higher cluster quality and fruit grain quality,increased by 38.74％and 25.61％respec-tively,the wilting rate decreased by 14.20％,the soluble solids decreased by 2.67 ° Brix,the total acid mass concentration increased by 0.83 g/L,and the total flavanol content and total anthocyanin content increased by 23.83％and 5.80％,respectively.However,the proportion of 3′,5′-hydroxy substituted anthocyanins,the proportion of methylation modification of anthocyanins and the proportion of total modification of anthocyanins were decreased in L-MVSP.[Conclusion]The L-MVSP of wine grape Marselan can improve the cluster region micro-environment and improve the berry quality in Turpan-Hami Basin.
万方数据
维普
