干旱区生态环境知识资源中心(Arid): Effects of uniconazole or ethephon foliar application on culm mechanical strength and lignin metabolism, and their relationship with lodging resistance in winter wheat

Arid

DOI	10.1071/CP19149
	Effects of uniconazole or ethephon foliar application on culm mechanical strength and lignin metabolism, and their relationship with lodging resistance in winter wheat
	Ahmad, Irshad 1,2,3; Kamran, Muhammad 1,2; Guo, Ziyan 1,2; Meng, Xiangping 1,2; Ali, Shahzad 1,2; Zhang, Peng1,2 ; Liu, Tiening 1,2; Cai, Tie 1,2; Han, Qingfang 1,2
通讯作者	Ahmad, Irshad ; Han, Qingfang
来源期刊	CROP & PASTURE SCIENCE
ISSN	1836-0947
EISSN	1836-5795
出版年	2020
卷号	71 期号:1 页码:12-22
英文摘要	Lodging in plants is an important constraint that leads to yield losses and cause problems with mechanical harvesting. This research was aimed at determining the effects of foliar application of uniconazole or ethephon on lignin metabolism, characteristics of second basal internode and their relationship with lodging resistance in winter wheat (Triticum aestivum L.). In separate experiments, uniconazole was sprayed on the foliage at concentrations of 0, 15, 30 and 45 mg L-1, and ethephon at concentrations of 0, 50, 75 and 100 mg L-1 at the four-leaf stage. Foliar application of uniconazole or ethephon significantly reduced the lodging rate by increasing the lignin content and optimising basal-internode characteristics. Lignin content was significantly positively correlated with breaking strength, and negatively correlated with lodging rate, whereby the higher lignin content in the second basal internode significantly improved the lodging resistance and reduced the lodging rate in the wheat crop. Foliar application of uniconazole or ethephon also increased the breaking strength, internode diameter, wall thickness and internode plumpness of the second basal internode; maximum values were obtained with uniconazole at 30 mg L-1 and with ethephon at 75 mg L-1. Grain yield, lignin content and lignin-related enzyme activities of phenylalanine ammonia-lyase, tyrosine ammonia-lyase, cinnamyl alcohol dehydrogenase and peroxidase were all significantly improved with the foliar application of uniconazole or ethephon. These results suggest that lignin content in the second basal internode in wheat was closely related with lodging resistance. Foliar application of uniconazole or ethephon at the four-leaf stage reduced the lodging rate, and the concentration showing the greatest effects was 30 mg L-1 for uniconazole or 75 mg L-1 for ethephon.
英文关键词	crop management plant growth regulators semi-arid regions
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000510748800002
WOS关键词	PLANT-GROWTH REGULATORS ; FUNCTIONAL-ANALYSIS ; USE EFFICIENCY ; SUMMER MAIZE ; GRAIN-YIELD ; BIOSYNTHESIS ; ACCUMULATION ; IMPROVEMENT ; COMPONENTS ; MORPHOLOGY
WOS类目	Agriculture, Multidisciplinary
WOS研究方向	Agriculture
EI主题词	2020-01-01
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311970
作者单位	1.Northwest A&F Univ, Key Lab Crop Physioecol & Tillage Sci North Weste, Minist Agr, Coll Agron, Yangling 712100, Shaanxi, Peoples R China; 2.Northwest A&F Univ, Inst Water Saving Agr Arid Areas China, Key Lab Agr Soil & Water Engn Arid & Semiarid Are, Minist Educ, Yangling 712100, Shaanxi, Peoples R China; 3.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Ahmad, Irshad,Kamran, Muhammad,Guo, Ziyan,et al. Effects of uniconazole or ethephon foliar application on culm mechanical strength and lignin metabolism, and their relationship with lodging resistance in winter wheat[J]. 西北农林科技大学,2020,71(1):12-22.
APA	Ahmad, Irshad.,Kamran, Muhammad.,Guo, Ziyan.,Meng, Xiangping.,Ali, Shahzad.,...&Han, Qingfang.(2020).Effects of uniconazole or ethephon foliar application on culm mechanical strength and lignin metabolism, and their relationship with lodging resistance in winter wheat.CROP & PASTURE SCIENCE,71(1),12-22.
MLA	Ahmad, Irshad,et al."Effects of uniconazole or ethephon foliar application on culm mechanical strength and lignin metabolism, and their relationship with lodging resistance in winter wheat".CROP & PASTURE SCIENCE 71.1(2020):12-22.