干旱区生态环境知识资源中心(Arid): 干旱区黑果枸杞光合电子传递速率对施氮的响应

Arid

	干旱区黑果枸杞光合电子传递速率对施氮的响应
其他题名	Effects of nitrogen application on photosynthetic of electron transport rate of Lycium ruthenicum Murr. in the arid area
	马兴东; 郭晔红; 王爱敏; 李梅英; 于霞霞; 冯洁; 朱文娟
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2021
卷号	35 期号:5 页码:1003-7578
中文摘要	为探明干旱区栽培黑果枸杞(Lycium ruthenicum Murr.)叶片光合电子传递速率(J)对施氮的响应,进一步完善施氮对光合特性的影响机理,本试验设置5个不同施氮(尿素,N,46%)量处理(0、0.05、0.10、 0.15和0.20kg·株~(-1)),测定各处理下黑果枸杞在不同光照强度(PAR)和CO_2浓度下叶片J,并通过J - PAR和J - CO_2的响应曲线拟合得到饱和光强(I_(sat)) 、饱和CO_2浓度(C_(i - sat)) 、最大电子传递速率(J_(max))和零点电子传递速率(J_0)等参数。结果表明: 1) J - PAR响应下,适当施氮对黑果枸杞叶片J_(max)和I_(sat)有一定的提高作用。当施氮量为0.15 ~ 0.20kg·株~(-1)时J_(max)最大,当施氮量为0.10 ~ 0.15kg·株~(-1)时I_(sat)最大。2) J - CO_2响应下,适当施氮对黑果枸杞叶片J_0、J_(max)和C_(i - sat)有一定的提高作用。当施氮量为0.10 ~ 0.15kg·株~(-1)时J_0最大,但J_(max)和C_(i - sat)受季节影响较大,J_(max)在夏果期当施氮量为0.20kg·株~(-1)时最大,在秋果期当施氮量为0.10kg·株~(-1)时最大,C_(i - sat)在夏果期当施氮量为0.20kg·株~(-1)时最大,在秋果期当施氮量为0.05kg·株~(-1)时最大。因此,适当施氮有利于I_(sat)、C_(i - sat)、J_(max)和J_0等参数的提高。
英文摘要	We explored the response of photosynthetic electron transfer rate(J) of Lycium ruthenicum cultivated in arid areas to nitrogen (N,urea,46%) application,and further to improve the understanding of effect mechanism of N application on photosynthetic characteristics. The experiment involved five different N application rates(CK: 0,N1: 0.05,N2: 0.10,N3: 0.15 and N4: 0.20kg·strain ~(- 1)). The J of leaf of Lycium ruthenicum under different light intensity (PAR) and CO_2 concentration under each treatment were measured,and the saturated light intensity (I_(sat)),saturated CO_2 concentration (C_(i - sat)),maximum electron transfer rate (J_(max)) and zero point electron transfer rate (J_0) were obtained by the response curve fitting of J - PAR and J - CO_2. The results showed as follows: 1) in response to J - PAR,proper N application improved the J_(max) and I_(sat) of leaves of Lycium ruthenicum to a certain extent. When the N application rate was 0.15 ~ 0.20kg·strain ~(- 1),the J_(max) was the largest. When the N application rate was 0.10 ~ 0.15kg·strain ~(- 1),the I_(sat) was the largest. 2) In response to J - CO_2,proper N application improved the J_(max) and I_(sat) of leaves of Lycium ruthenicum to a certain extent. When the N application rate was 0.10 ~ 0.15kg·strain ~(- 1),the J_(max) was the largest. But the J_(max) and C_(i - sat) were greatly affected by the season. The J_(max) was the largest when the N application rate was 0.20kg·strain ~(- 1) in the summer fruit period,and it was the largest when the N application rate was 0.10kg·strain ~(- 1) in the autumn fruit period. The C_(i - sat) was the maximum in the summer fruit period when the N application rate was 0.20kg·strain ~(- 1). It was the maximum in the autumn fruit period when the nitrogen rate was 0.05kg·strain ~(- 1). Therefore,proper N application was beneficial to improve the parameters of I_(sat),C_(i - sat),J_(max) and J_0.
中文关键词	干旱区 ; 黑果枸杞 ; 施氮量 ; 电子传递速率- 光响应 ; 电子传递速率- CO_2响应
英文关键词	arid land Lycium ruthenicum Murr. nitrogen application rate J - PAR J - CO_2
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6968445
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/365078
作者单位	马兴东, 甘肃农业大学农学院/甘肃省中药材研究所, 甘肃省干旱生境作物学重点实验室, 兰州, 甘肃 730070, 中国.; 郭晔红, 甘肃农业大学农学院/甘肃省中药材研究所, 甘肃省干旱生境作物学重点实验室, 兰州, 甘肃 730070, 中国.; 于霞霞, 甘肃农业大学农学院/甘肃省中药材研究所, 甘肃省干旱生境作物学重点实验室, 兰州, 甘肃 730070, 中国.; 冯洁, 甘肃农业大学农学院/甘肃省中药材研究所, 甘肃省干旱生境作物学重点实验室, 兰州, 甘肃 730070, 中国.; 朱文娟, 甘肃农业大学农学院/甘肃省中药材研究所, 甘肃省干旱生境作物学重点实验室, 兰州, 甘肃 730070, 中国.; 王爱敏, 河南农业职业学院农业工程学院, 郑州, 河南 450000, 中国.; 李梅英, 国家林业局甘肃濒危动物保护中心, 武威, 甘肃 733000, 中国.
推荐引用方式 GB/T 7714	马兴东,郭晔红,王爱敏,等. 干旱区黑果枸杞光合电子传递速率对施氮的响应[J],2021,35(5):1003-7578.
APA	马兴东.,郭晔红.,王爱敏.,李梅英.,于霞霞.,...&朱文娟.(2021).干旱区黑果枸杞光合电子传递速率对施氮的响应.干旱区资源与环境,35(5),1003-7578.
MLA	马兴东,et al."干旱区黑果枸杞光合电子传递速率对施氮的响应".干旱区资源与环境 35.5(2021):1003-7578.