干旱区生态环境知识资源中心(Arid): Effect of water soluble humic acid applied to potato foliage on plant growth, photosynthesis characteristics and fresh tuber yield under different water deficits

Arid

DOI	10.1038/s41598-020-63925-5
	Effect of water soluble humic acid applied to potato foliage on plant growth, photosynthesis characteristics and fresh tuber yield under different water deficits
	Yang Man-hong; Lei, Zhang; Xu Sheng-tao; McLaughlin, Neil B.; Liu Jing-hui
通讯作者	Liu, JH
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2020
卷号	10 期号:1
英文摘要	Water scarcity is the main limiting factor in agricultural crop production in arid and semi-arid areas in northern China. Humic acid could improve the plant resistance to mitigate the abiotic drought damages, which is a potential strategy to improve the crop production in these regions. An experiment to investigate the effect of water soluble humic acid on plant growth, photosynthesis characteristics and fresh tuber yield of potato under different water deficits was carried out under greenhouse conditions in 2014 and 2015. Treatments included foliar application of fresh water (FW), humic acid diluted with water 500 times (HA) and control (CK), and the water deficits included 45%, 60% and 75% of the field water holding capacity. The HA treatment showed highly significant (P <= 0.01) effect on dry biomass, root/shoot ratio and photosynthesis parameters, improved the dry biomass above ground (DM-AG) by 14.12-36.63%, 11.62-36.26% and 7.85-20.85% over the whole growing season at water deficits of 45%, 60% and 75% of the field water holding capacity respectively in 2014 and 2015; decreased the root/shoot (R/S) ratio in the early growing season and increased the R/S ratio in the later growing season; showed an improved effect on leaf soil plant analysis development (SPAD), photosynthesis rate (Pn) and stomatal conductance (Gs) and decreased transpiration rate (Tr) and intercellular CO2 concentration (Ci) compared with the control. HA usually showed a better effect on photosynthesis parameters in 60% of the field water holding capacity than 45% and 75% except on Pn. Compared with control, HA increased fresh tuber yield by 34.47-63.48%, 35.95-37.28% and 23.37-27.15% at 45%, 60% and 75% of the field water holding capacity respectively. HA enhanced the potato plant growth, and improved photosynthesis parameters and fresh tuber yield under different water deficits under green house conditions, and represents an opportunity to improve crop production and sustainability of agriculture in arid and semiarid regions.
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000559780100024
WOS关键词	DROUGHT RESISTANCE ; SOIL ; STRESS ; AMENDMENTS ; TOLERANCE ; L.
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325631
作者单位	[Yang Man-hong; Liu Jing-hui] Inner Mongolia Agr Univ, Oat Sci & Tech Innovat Team, Hohhot 010019, Inner Mongolia, Peoples R China; [Lei, Zhang] Yunnan Acad Agr Sci, Inst Econ Crops, Kunming 650205, Yunnan, Peoples R China; [Xu Sheng-tao] Yunnan Acad Agr Sci, Agr Environm & Resources Inst, Kunming 650205, Yunnan, Peoples R China; [McLaughlin, Neil B.] Agr & Agri Food Canada, Ottawa Res & Dev Ctr, Ottawa, ON K1A 0C6, Canada
推荐引用方式 GB/T 7714	Yang Man-hong,Lei, Zhang,Xu Sheng-tao,et al. Effect of water soluble humic acid applied to potato foliage on plant growth, photosynthesis characteristics and fresh tuber yield under different water deficits[J],2020,10(1).
APA	Yang Man-hong,Lei, Zhang,Xu Sheng-tao,McLaughlin, Neil B.,&Liu Jing-hui.(2020).Effect of water soluble humic acid applied to potato foliage on plant growth, photosynthesis characteristics and fresh tuber yield under different water deficits.SCIENTIFIC REPORTS,10(1).
MLA	Yang Man-hong,et al."Effect of water soluble humic acid applied to potato foliage on plant growth, photosynthesis characteristics and fresh tuber yield under different water deficits".SCIENTIFIC REPORTS 10.1(2020).