Leaf surface characteristics affect the deposition and distribution of droplets in rice (Oryza sativa L.)

Abstract We studied the effects of leaf surface characteristics on canopy droplet behaviour using two rice cultivars with similar leaf shapes but significantly different leaf surface characteristics: Jia58 (glabrous rice; smooth leaf surface and no burrs) and Yongyou12 (hairy-leaved rice; rough leaf...

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Autores principales:	Guangmei Ji, Huizhe Chen, Yuping Zhang, Jing Xiang, Yaliang Wang, Zhigang Wang, Defeng Zhu, Yikai Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2b83189714224b61ae4f92acd6a7667a
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spelling	oai:doaj.org-article:2b83189714224b61ae4f92acd6a7667a2021-12-02T19:12:27ZLeaf surface characteristics affect the deposition and distribution of droplets in rice (Oryza sativa L.)10.1038/s41598-021-97061-52045-2322https://doaj.org/article/2b83189714224b61ae4f92acd6a7667a2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97061-5https://doaj.org/toc/2045-2322Abstract We studied the effects of leaf surface characteristics on canopy droplet behaviour using two rice cultivars with similar leaf shapes but significantly different leaf surface characteristics: Jia58 (glabrous rice; smooth leaf surface and no burrs) and Yongyou12 (hairy-leaved rice; rough leaf surface covered with burrs). The plants were subjected to spray tests with different spray pressures and nozzle apertures. The results showed that the deposition amount per unit leaf area was significantly higher in the Yongyou12 canopy than in the Jia58 canopy. The diameter, volume median diameter, number median diameter, and coverage of droplets were significantly higher in Yongyou12 than in Jia58, while the coverage density of droplets was significantly lower. The proportion of small droplets of Jia58 is higher than that of Yongyou12. Thus, a larger amount of large-sized droplets could retain on the leaf surface of hairy-leaved rice, and a larger number of small-sized droplets were retained on the leaf surface of glabrous rice. Smaller pressure and larger flow nozzle were conducive to the retention of the Jia58, while Yongyou12 required larger pressure and larger flow nozzles. Ultrastructural analyses revealed that the leaf surface of glabrous rice had no trichomes and more wax than hairy-leaved rice, and the critical surface tension was lower, resulting in the retention of mainly small droplets on its leaf surface and a lower deposition amount. Therefore, in order to increase the deposition of pesticide droplets on the leaf surface in production, glabrous rice should choose nozzles with smaller spray pressure and large flow rate.Guangmei JiHuizhe ChenYuping ZhangJing XiangYaliang WangZhigang WangDefeng ZhuYikai ZhangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Guangmei Ji Huizhe Chen Yuping Zhang Jing Xiang Yaliang Wang Zhigang Wang Defeng Zhu Yikai Zhang Leaf surface characteristics affect the deposition and distribution of droplets in rice (Oryza sativa L.)
description	Abstract We studied the effects of leaf surface characteristics on canopy droplet behaviour using two rice cultivars with similar leaf shapes but significantly different leaf surface characteristics: Jia58 (glabrous rice; smooth leaf surface and no burrs) and Yongyou12 (hairy-leaved rice; rough leaf surface covered with burrs). The plants were subjected to spray tests with different spray pressures and nozzle apertures. The results showed that the deposition amount per unit leaf area was significantly higher in the Yongyou12 canopy than in the Jia58 canopy. The diameter, volume median diameter, number median diameter, and coverage of droplets were significantly higher in Yongyou12 than in Jia58, while the coverage density of droplets was significantly lower. The proportion of small droplets of Jia58 is higher than that of Yongyou12. Thus, a larger amount of large-sized droplets could retain on the leaf surface of hairy-leaved rice, and a larger number of small-sized droplets were retained on the leaf surface of glabrous rice. Smaller pressure and larger flow nozzle were conducive to the retention of the Jia58, while Yongyou12 required larger pressure and larger flow nozzles. Ultrastructural analyses revealed that the leaf surface of glabrous rice had no trichomes and more wax than hairy-leaved rice, and the critical surface tension was lower, resulting in the retention of mainly small droplets on its leaf surface and a lower deposition amount. Therefore, in order to increase the deposition of pesticide droplets on the leaf surface in production, glabrous rice should choose nozzles with smaller spray pressure and large flow rate.
format	article
author	Guangmei Ji Huizhe Chen Yuping Zhang Jing Xiang Yaliang Wang Zhigang Wang Defeng Zhu Yikai Zhang
author_facet	Guangmei Ji Huizhe Chen Yuping Zhang Jing Xiang Yaliang Wang Zhigang Wang Defeng Zhu Yikai Zhang
author_sort	Guangmei Ji
title	Leaf surface characteristics affect the deposition and distribution of droplets in rice (Oryza sativa L.)
title_short	Leaf surface characteristics affect the deposition and distribution of droplets in rice (Oryza sativa L.)
title_full	Leaf surface characteristics affect the deposition and distribution of droplets in rice (Oryza sativa L.)
title_fullStr	Leaf surface characteristics affect the deposition and distribution of droplets in rice (Oryza sativa L.)
title_full_unstemmed	Leaf surface characteristics affect the deposition and distribution of droplets in rice (Oryza sativa L.)
title_sort	leaf surface characteristics affect the deposition and distribution of droplets in rice (oryza sativa l.)
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2b83189714224b61ae4f92acd6a7667a
work_keys_str_mv	AT guangmeiji leafsurfacecharacteristicsaffectthedepositionanddistributionofdropletsinriceoryzasatival AT huizhechen leafsurfacecharacteristicsaffectthedepositionanddistributionofdropletsinriceoryzasatival AT yupingzhang leafsurfacecharacteristicsaffectthedepositionanddistributionofdropletsinriceoryzasatival AT jingxiang leafsurfacecharacteristicsaffectthedepositionanddistributionofdropletsinriceoryzasatival AT yaliangwang leafsurfacecharacteristicsaffectthedepositionanddistributionofdropletsinriceoryzasatival AT zhigangwang leafsurfacecharacteristicsaffectthedepositionanddistributionofdropletsinriceoryzasatival AT defengzhu leafsurfacecharacteristicsaffectthedepositionanddistributionofdropletsinriceoryzasatival AT yikaizhang leafsurfacecharacteristicsaffectthedepositionanddistributionofdropletsinriceoryzasatival
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Leaf surface characteristics affect the deposition and distribution of droplets in rice (Oryza sativa L.)

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