干旱区生态环境知识资源中心(Arid): 敦煌绿洲区覆膜补灌对谷子光合特性农艺性状及产量的影响

Arid

	敦煌绿洲区覆膜补灌对谷子光合特性农艺性状及产量的影响
其他题名	Effect of supplemental irrigation on photosynthetic characteristics, agronomic traits and yield of foxtail millet under condition of film mulching in Dunhuang oasis
	刘天鹏 1; 何继红 1; 董孔军 1; 任瑞玉 1; 张磊 1; 许岩 2; 杨天育 1
来源期刊	干旱地区农业研究
ISSN	1000-7601
出版年	2017
卷号	35 期号:2 页码:68-73
中文摘要	在年降雨量不足40mm的敦煌绿洲灌区,以谷子为材料,采用裂区试验,研究了覆膜栽培条件下拔节、抽穗和灌浆各阶段灌一次水对其光合特性、农艺性状及产量的影响。结果显示:在播前统一灌600m~3·hm~(-2)底墒水的情况下,抽穗期灌600 m~3·hm~(-2)水处理(A3),谷子的净光合速率(Pn)、蒸腾速率(Tr)、气孔导度(Gs)及叶绿素含量显著的高于生育期内不灌水(A1)、拔节期灌600 m~3·hm~(-2)水(A2)和灌浆期灌600 m~3 · hm~(-2)水(A4)处理,胞间CO_2浓度(Ci)因品种不同各处理间也存在较大差异;抽穗期灌600 m~3·hm~(-2)水(A3)不仅抽穗明显提前,株高、主穗长、单株穗重、单株粒重、单株草重显著高于A1、A2、A4,且产量也极显著高于A1、A2、A4;相关分析表明,不同处理净光合速率、蒸腾速率、气孔导度、叶绿素含量均与产量显著正相关,光合速率、蒸腾速率、气孔导度间彼此极显著相关。
英文摘要	In Dunhuang oasis area where annual rainfall is less than 40 mm,a split plot experiment was conducted to explore the effect of irrigation at jointing, heading and filling stages on the photosynthetic characteristics, agronomic traits and yield of foxtail millet (Setaria italica L.) under the condition of film mulching. Results showed that, under the condition of identical irrigation with 600 m~3 · hm~(-2) water before planting,the photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Gs) and chlorophyll content of foxtail millet in the treatment of heading stage irrigation with 600 m~3·hm~(-2) water (A3) were significantly higher than those in the treatments of no irrigation (A1), jointing stage irrigation with 600 m~3 · hm~(-2) water (A2) and filling stage irrigation with 600 m~3 · hm~(-2) water (A4). Intercellular CO_2 concentration (Ci) was also much different among different treatments,being affected by different cultivars. Compared with A1,A2 and A4,the treatment of A3 promoted heading time remarkably, increased plant height,main spike length, spike weight per plant,grain weight per plant and straw weight per plant significantly,and raised yield very significantly.Correlation analysis showed that photosynthetic rate,transpiration rate, stomatal conductance and chlorophyll content were significantly positively correlated with yield, while photosynthetic rate,transpiration rate and stomatal conductance were very significantly correlated with each other.
中文关键词	谷子 ; 灌水 ; 光合特性 ; 农艺性状 ; 产量
英文关键词	foxtail millet irrigation photosynthetic characteristics agronomic traits yield
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5979108
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235889
作者单位	1.甘肃省农业科学院作物研究所, 兰州, 甘肃 730070, 中国; 2.甘肃农业大学生命科学技术学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	刘天鹏,何继红,董孔军,等. 敦煌绿洲区覆膜补灌对谷子光合特性农艺性状及产量的影响[J]. 甘肃农业大学,2017,35(2):68-73.
APA	刘天鹏.,何继红.,董孔军.,任瑞玉.,张磊.,...&杨天育.(2017).敦煌绿洲区覆膜补灌对谷子光合特性农艺性状及产量的影响.干旱地区农业研究,35(2),68-73.
MLA	刘天鹏,et al."敦煌绿洲区覆膜补灌对谷子光合特性农艺性状及产量的影响".干旱地区农业研究 35.2(2017):68-73.