关键词: 红地球葡萄, 花穗整形, 果实品质, 工作效率

Abstract: Taking 5-years-old Red Globe grape plants as tested material, this paper investigated the effects of different floral clusters pruning methods on fruit quality of Red Globe grape; and screened out labor saving, pruning method with high quality. The results showed that the single-grain weight by leaving spikelet tip 10 cm was the highest. The soluble solid contents by leaving spikelet tip 8 cm, 12 cm and 16 cm were significantly higher than that of the other treatments. The tannin contents of leaving spikelet tip 12 cm and 14 cm were significantly lower than that of the other treatments. Among treatments, leaving spikelet tip 8 cm,10 cm and 12 cm were more conducive to coloration than the treatments of shorting branch, retaining middle ear. Leaving spikelet tip 12 cm could obtain the highest comprehensive efficiency. While, the efficiency of leaving spikelet tip 14 cm was the lowest. The comprehensive evaluation results of different pruning methods were in ranks of leaving spikelet tip 12 cm>10 cm>8 cm>remaining the secondary ear>only shorting branch>leaving spikelet tip 14 cm>16 cm>retaining middle ear. Hence, leaving spikelet tip 12 cm should be the best floral cluster pruning method with labor saving and high quality for Red Globe grape in production practice. This study provided theoretical basis for floral cluster pruning of Red Globe grape.

Key words: Red Globe grape, floral cluster pruning, fruit quality, working efficiency