Influence of leaf surface wettability on droplet deposition effect of rape leaves and their correlation
The wettability of plant leaf surface reflects the hydrophilic ability of leaves, and influences the spreading and retention behavior of liquid on leaf surface directly, which resulted in the affection of droplet deposition effect as well. In this study, contact angle was used to characterise leaf s...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-12-01
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| Series: | Journal of Agriculture and Food Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666154319300110 |
| _version_ | 1818411830095118336 |
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| author | Hui Fang Zeqing Zhang Shupei Xiao Yufei Liu |
| author_facet | Hui Fang Zeqing Zhang Shupei Xiao Yufei Liu |
| author_sort | Hui Fang |
| collection | DOAJ |
| description | The wettability of plant leaf surface reflects the hydrophilic ability of leaves, and influences the spreading and retention behavior of liquid on leaf surface directly, which resulted in the affection of droplet deposition effect as well. In this study, contact angle was used to characterise leaf surface wettability, the influence of vegetable oil addition on leaf surface wettability and droplet deposition effect was investigated, and the correlation models between leaf surface wettability and deposition amount were established. Besides, the photolysis rate and elution recovery rate of tartrazine 85, allura red, ponceau 2R and methylene blue were compared. As a result, with the increase of vegetable oil addition in spray indicator, the contact angles of spray indicator on rape leaf surface decreased sharply at first, then slowly and tended to be stable, while the deposition amount showed a trend of sharp rise and then fluctuated in a certain range. Meanwhile, the droplet deposition amount on rape leaves was positively correlated with surface wettability, the correlation from good to bad was: tartrazine 85 (R = 0.9299), allura red (R = 0.9244), ponceau 2R (R = 0.9202), methylene blue (R = 0.8748). In combination with the photolysis rate and elution recovery rate of four spray indicators, tartrazine 85 and allura red performed better than ponceau 2R and methylene blue for their low photolysis rate and high elution recovery rate, which were more suitable for farmland spray applications. |
| first_indexed | 2024-12-14T10:37:38Z |
| format | Article |
| id | doaj.art-f04f091413854340aad89902ab1d848b |
| institution | Directory Open Access Journal |
| issn | 2666-1543 |
| language | English |
| last_indexed | 2024-12-14T10:37:38Z |
| publishDate | 2019-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Agriculture and Food Research |
| spelling | doaj.art-f04f091413854340aad89902ab1d848b2022-12-21T23:05:51ZengElsevierJournal of Agriculture and Food Research2666-15432019-12-011100011Influence of leaf surface wettability on droplet deposition effect of rape leaves and their correlationHui Fang0Zeqing Zhang1Shupei Xiao2Yufei Liu3College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, ChinaCollege of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, ChinaCollege of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, ChinaCorresponding author.; College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, ChinaThe wettability of plant leaf surface reflects the hydrophilic ability of leaves, and influences the spreading and retention behavior of liquid on leaf surface directly, which resulted in the affection of droplet deposition effect as well. In this study, contact angle was used to characterise leaf surface wettability, the influence of vegetable oil addition on leaf surface wettability and droplet deposition effect was investigated, and the correlation models between leaf surface wettability and deposition amount were established. Besides, the photolysis rate and elution recovery rate of tartrazine 85, allura red, ponceau 2R and methylene blue were compared. As a result, with the increase of vegetable oil addition in spray indicator, the contact angles of spray indicator on rape leaf surface decreased sharply at first, then slowly and tended to be stable, while the deposition amount showed a trend of sharp rise and then fluctuated in a certain range. Meanwhile, the droplet deposition amount on rape leaves was positively correlated with surface wettability, the correlation from good to bad was: tartrazine 85 (R = 0.9299), allura red (R = 0.9244), ponceau 2R (R = 0.9202), methylene blue (R = 0.8748). In combination with the photolysis rate and elution recovery rate of four spray indicators, tartrazine 85 and allura red performed better than ponceau 2R and methylene blue for their low photolysis rate and high elution recovery rate, which were more suitable for farmland spray applications.http://www.sciencedirect.com/science/article/pii/S2666154319300110WettabilityContact angleDroplet deposition effectSpray indicatorPhotolysis rateElution recovery rate |
| spellingShingle | Hui Fang Zeqing Zhang Shupei Xiao Yufei Liu Influence of leaf surface wettability on droplet deposition effect of rape leaves and their correlation Journal of Agriculture and Food Research Wettability Contact angle Droplet deposition effect Spray indicator Photolysis rate Elution recovery rate |
| title | Influence of leaf surface wettability on droplet deposition effect of rape leaves and their correlation |
| title_full | Influence of leaf surface wettability on droplet deposition effect of rape leaves and their correlation |
| title_fullStr | Influence of leaf surface wettability on droplet deposition effect of rape leaves and their correlation |
| title_full_unstemmed | Influence of leaf surface wettability on droplet deposition effect of rape leaves and their correlation |
| title_short | Influence of leaf surface wettability on droplet deposition effect of rape leaves and their correlation |
| title_sort | influence of leaf surface wettability on droplet deposition effect of rape leaves and their correlation |
| topic | Wettability Contact angle Droplet deposition effect Spray indicator Photolysis rate Elution recovery rate |
| url | http://www.sciencedirect.com/science/article/pii/S2666154319300110 |
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