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- Title
喷水方式对葡萄叶片SPAD值和叶绿素含量及产量的影响.
- Authors
刘洪波; 白云岗; 张江辉; 丁平
- Abstract
【Objective】 The effects of different water spraying methods on SPAD value, chlorophyll content and yield of grapes under micro-spray conditions in extreme arid areas were studied to determine the high quality and high yield water spray method.【Methods】 The SPAD value, chlorophyll content, quality and yield of grape under different water spraying methods were measured by micro-spray irrigation to analyze the diurnal and diurnal variation characteristics of SPAD value under different water spraying methods and the correlation between SPAD value and chlorophyll content. 【Results】 Under different water spray duration conditions, the SPAD value of each treatment decreased first and then increased. The daily variation value was between 40.1 and 45.6 SPAD, and the daily average value of SPAD value of WP1 was 44.3, followed by WP2 (43.5) and WP3 (42.9), and CK (41.2) was the lowest. The regression equations between grape SPAD value and chlorophyll a, chlorophyll b and total chlorophyll content were: Ca=0.068,5VSPAD-0.890,2, Cb=0.045,4VSPAD-1.019,4, Ct=0.114VSPAD-1.909,6, and in terms of grape quality index and yield, micro-spray improved the quality of VC, polyphenol content and tannin content, and increased the average yield by 8.6%. 【Conclusion】 There was a significant positive correlation between SPAD value and chlorophyll a, chlorophyll b and total chlorophyll content in grape leaves under different water spray patterns, which indicated that it was feasible to use SPAD value to predict chlorophyll a content, b content and total chlorophyll content. This might provide a new method for rapid determination of leaf green content in field grape leaves.
- Publication
Xinjiang Agricultural Sciences, 2020, Vol 57, Issue 5, p822
- ISSN
1001-4330
- Publication type
Article
- DOI
10.6048/j.issn.1001-4330.2020.05.005