Adaptability Of Meili And Other Red Wine Grape Varieties And Its Cultivation In Yangling

Meili,which was bred by Li Hua's team of Northwest Agriculture & Forestry University,and five introduced black varieties(Granoir,Grenache,Tempranillo,Graciano and Zinfandel)were taken as experimental material,the adaptability of Meili in Yangling Shaanxi,Bailuyuan Shaanxi,Minquan Henan,Heyang Shaanxi,Xiaxian Shanxi and Wuhai Neimenggu,the adaptability of six varieties in Yangling and cultivations of Meili in Yangling were studied,aim to provide scientific theoretical foundation for their generalize in more regions.The results are as follows:(1)The growth and fruiting characteristics of Wuhai Meili were higher.And its fruit had highest contents of reducing sugar,titration acid,peel total polyphenols,total anthocyanins and tannins.The adaptability of Meili in this region was better.Bailuyuan Meili had lower infection of two diseases.Apart from lower content of titration acid,its fruit had higher contents of reducing sugar and peel phenolic compounds.The adaptability of Meili in this region was better.Diseases infection condition of Xiaxian Meili was lightest and its friut had highest content of reducing sugar,lowest contents of peel total flavanols and tannins.The adaptability of Meili in this region was medium.The infection of anthracnose was serious to Heyang Meili and its friut had lower contents of peel phenolic compounds.The adaptability of Meili in this region was medium.Growth and fruiting characteristics of Minquan Meili were lower and its growth vigor was medium.The infection of waterberry was the most serious to Minquan Meili.Its friut had lowest contents of titration acid,peel total polyphenols and total anthocyanins.The adaptability of Meili in this region needs further research.(2)In Yangling,the resistance of Meili to anthracnose was lower.Its friut had lower contents of reducing sugar and peel phenolic compounds.The scores of wine aroma condition and intensity were lower.The adaptability of Meili was medium.Growth and fruiting characteristics of Granoir were highest,but its fruit had lowest contents of reducing sugar,peel total flavanols and total flavonoids.The scores of wine aroma and palate quality were lower.Under-ripeness was obvious in wine aroma characteristics.The adaptability of Granoir was medium.The resistance of Grenache to diseases was medium.And its fruit had higher content of reducing sugar.Its wine had highest scores of aroma condition and medium scores of palate quality.The adaptability of Grenache was medium.The contents of grape titration acid of Tempranillo and Graciano were medium.And the contents of grape reducing sugar,peel phenolic compounds,the scores of wine aroma and palate quality of the two varieties were all higher.But the resistance of two varieties grape to anthracnose were lower.The adaptability of Tempranillo and Graciano were medium.The fruit of Zinfandel had lower contents of reducing sugar and peel phenolic compounds.Under-ripeness was obvious in wine aroma characteristics.The adaptability of Zinfandel was medium.(3)Growth and fruiting characteristics of Meili were highest in short-shoot pruning.Leaf removal and cluster wing removal both could increase the contents of friut reducing sugar and phenolic compounds,improving the grape quality.In soil surface mulching,the inhibitory effect of different mulching was: plastic film >spent mushroom substrate>branches chips.In addition,spent mushroom substrate could increase the amounts of azotobacter and inorganic phosphorus bacteria in 0~20 cm soil layer,silicate bacteria in 20~40 cm soil layer and organic phosphorus bacteria in 40~60 cm soil layer.Branches chips could increase the amounts of organic phosphorus bacteria in 0~20 cm soil layer,azotobacter and organic phosphorus bacteria in 20~40 cm soil layer,and azotobacter,inorganic phosphorus bacteria and silicate bacteria in 40~60 cm soil layer.