山葡萄新品种“雪兰红”单株留果量对果实品质和产量的影响

Effect of Different Cluster Number Per Plant on Fruit Quality and Yield of New Grape Variety ‘Xuelanhong’

以山葡萄新品种"雪兰红"为试材,研究了其单株留果量对果实品质和产量的影响。结果表明:随着单株留果量增多,果穗上"小青粒"、果实总酸含量和产量大幅度增高,果穗果粒重量和出汁率大幅度降低。其中单株保留30个果穗产量低无栽培效益,保留90个果穗试验树产量高负载量大,新梢和芽眼成熟度差,导致试验树第2年早春萌芽率低,出现"歇树"和部分植株死蔓,比试验当年减产50.2%。单株保留50～70个果穗,表现果穗紧凑"小青粒"少,果实含糖酸和产量适中,试验当年和第2年稳产。因此,通过试验可以确定,建园株行距1.0m×3.0m单株保留2个主蔓小棚架,单株适宜留果量为50～70个。

Taking Vitis amurensin ＇Xuelanhong＇ as material, the effect of different cluster numbers per plant on quality and yield of ＇Xuelanhong; were studied. The results showed that the yield,little green berries and total acid greatly increased,the clusters and berry weight and juice yield decreased with the increasing of cluster numbers per plant. Yield of each plant with 30 clusters was low,while yield was high with 90 clusters, but shoots were not fully mature as load capacity in late autumn,leading to the condition called ＇rest tre＆ and a part of that plants dies in the next year. The output declined by 50. 2;. Each plant retain experimental treatments,little green berries, sugar and acid content was suitable,production was moderate. Therefore, the suitable retain fruit was 50 ; 70 clusters with two main vine trellis, spacing of 1.0 m× 3. 0 m.