3种架式对'新郁'葡萄栽培性状及果实品质的影响OA北大核心CSTPCD

In order to screen and optimize the high quality and high efficiency cultivation trellis system of table grape in the northwest arid area,China,the'Xinyu'grape was used as experimental material,with 3 treatments including single dragon trunk shaping+horizontal leaf curtain(SDTS-H),inclined single dragon trunk shaping+horizontal leaf curtain(ISDTS-H),and inclined single dragon trunk shaping+vertical+horizontal leaf curtains(ISDTS-VH)were set,and the effects of 3 trellis systems on leaves photosynthetic characteristics,cluster micro-environment,fruit quality and economic benefits of'Xinyu'grape were analyzed.The results showed that the net photosynthetic rate was higher with ISDTS-VH than with SDTS-H by 7.73%,the water use efficiency was higher with ISDTS-H than with SDTS-H by 14.13%.Compared with SDTS-H,mean temperature with ISDTS-H and ISDTS-VH were higher than that with ISDTS-VH with 2.29 and 2.24℃,mean humidity were lower with ISDTS-H and ISDTS-VH than with ISDTS-VH by 4.96 and 3.85 percentage points,respectively.The daily average total radiation with ISDTS-H and ISDTS-VH were 2.66 and 1.31 times compared with SDTS-H.Grapes with ISDTS-H and ISDTS-VH ripened earlier than with SDTS-H,and the contents of soluble solids,anthocyanin,flavonoid,vitamin C and color index of red grape were significantly higher with ISDTS-H and ISDTS-VH fruits than with SDTS-H when berry ripening.The berry mass,flavonoid content and vitamin C content of SDTS-VH were the highest by 13.99 g,7.36 and 44.18 mg·kg-1,respectively,and the anthocyanin content was 1.22 mg·g-1 at the later stage of fruit ripen,the fruit quality was the best.Actual number of clusters similarity index and actual yield similarity index of SDTS-VH were the highest,with 0.73 and 1.06.Compared with SDTS-H,the cumulative hours with ISDTS-VH was reduced by 48.00%and the economic performance increased by 189.58%.Taken together,photosynthetic rate of ISDTS-VH was the highest,cluster micro-environment was the optimal,beneficial to quality formation and yield control,and economic performance was the highest.