干旱区生态环境知识资源中心(Arid): 施磷对干旱胁迫下苦荞生长及磷素吸收分配的影响

Arid

	施磷对干旱胁迫下苦荞生长及磷素吸收分配的影响
其他题名	Effect of phosphorus on growth and phosphorus absorption and distribution in Fagopyrum tataricum under drought stress
	赵海霞 1; 裴红宾 1; 张永清 2; 高振峰 3; 董馥慧 1
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2019
卷号	33 期号:3 页码:177-183
中文摘要	以苦荞(Fagopyrum tataricum L. )为试验材料,试验设水、磷二因素,采用完全随机设计盆栽试验,研究不同水分处理下施磷对苦荞生长、磷素吸收分配及产量的影响,为干旱区苦荞高产、稳产栽培提供水肥管理的理论依据.结果表明:1)在干旱胁迫(W2)条件下,苦荞株高、茎粗、叶面积、地上部干重、根系表面积、平均直径、根体积、总根长和根干重均明显降低;根系SOD、POD、MDA、可溶性糖和脯氨酸含量显著提高;根、茎部位磷素积累量随施磷量增加而增多,而叶、花部位在P2水平下达到最高;花簇数、单株粒重、千粒重和产量均显著降低.2)相同水分条件下,施磷对苦荞地上和地下部分的生长均有促进作用,并显著增加了W2条件下根系主根长,且均表现为P2(0.2g·kg ~(- 1) )水平效果最优;随施磷量的增加,根系可溶性糖和脯氨酸含量为先下降后上升,MDA含量逐渐降低,SOD、POD活性与苦荞产量及各构成要素均呈先升后降的趋势,P2(0.2g·kg ~(- 1) )处理显著提高苦荞产量.结论:适量施磷有利于提高苦荞植株抗旱性,促进植株生长发育和产量形成.在本试验条件下,P2(0.2g·kg ~(- 1) )处理在干旱胁迫下更利于苦荞生长与产量的形成.
英文摘要	In order to provide theoretical basis for the management of water and fertilizer for the high and stable yield of Fagopyrum tataricum in the hilly area,to explore the effect of drought stress and P application on the growth,absorption and distribution,and yield of F. tataricum,pot experiment was conducted under greenhouse condition. The results showed that drought stress (W2) restricted the growth of F. tataricum,such as plant height,the stem diameter,leaf area and dry weight of shoot. In addition,root surface area,mean diameter,root volume,total root length and dry weight of roots were decreased significantly. However,the activities of SOD and POD,the contents of MDA,soluble sugar and proline in roots were increased significantly,and the root and stem accumulation increased with the increase of phosphorus under W2; the accumulation of leaf and flower were the highest at P2 level; the number of flower clusters,grain weight per plant,1000 - grainweight and yield were decreased significantly. Under the same water treatment,phosphorus application promoted the growth of the aboveground and underground parts of F. tataricum,and especially the main root length was increased significantly. The effect of P2 (0.2g·kg ~(- 1) ) was the best. While,the content of soluble sugar and proline first decreased and then increasedwith the increase of phosphorus,the MDA content decreased gradually. The activities of SOD and POD,and yield of F. tataricum and its constituents were increased firstly and then decreased with the increase of phosphorus. The yield of buckwheat was the highest at P2 (0.2g·kg ~(- 1)) level. Conclusion: the suitable amount of phosphorus can improve the drought resistance of F. tataricum and promote the growth and yield of plant. In our study,P2 (0.2g·kg ~(- 1)) treatment was more beneficial to the growth and yield formation of F. tataricum.
中文关键词	苦荞 ; 干旱胁迫 ; 施磷 ; 磷素积累 ; 产量
英文关键词	Fagopyrum tataricum drought stress phosphorus application phosphorus accumulation yield
语种	中文
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6458016
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315961
作者单位	1.山西师范大学生命科学学院, 临汾, 山西 041004, 中国; 2.山西师范大学生命科学学院;;山西师范大学地理科学学院, ;;, 临汾;;临汾, ;; 041004;;041004; 3.山西省农业科学院农产品贮藏保鲜研究所, 太原, 山西 030031, 中国
推荐引用方式 GB/T 7714	赵海霞,裴红宾,张永清,等. 施磷对干旱胁迫下苦荞生长及磷素吸收分配的影响[J],2019,33(3):177-183.
APA	赵海霞,裴红宾,张永清,高振峰,&董馥慧.(2019).施磷对干旱胁迫下苦荞生长及磷素吸收分配的影响.干旱区资源与环境,33(3),177-183.
MLA	赵海霞,et al."施磷对干旱胁迫下苦荞生长及磷素吸收分配的影响".干旱区资源与环境 33.3(2019):177-183.