Impact of water deficit on light interception, radiation use efficiency and leaf area index in a potato crop (Solanum tuberosum L.)

被引：20

作者：

Camargo, D. C. ^{[1
]}

Montoya, F. ^{[1
]}

Moreno, M. A. ^{[1
]}

Ortega, J. F. ^{[2
]}

Corcoles, J. I. ^{[1
]}

机构：

[1] Castilla La Mancha Univ UCLM, Reg Ctr Water Res CREA, Ctra Penas,Km 3-2, Albacete 02071, Spain

[2] Castilla La Mancha Univ UCLM, ETSIA, Dept Crop Prod & Agr Technol, Campus Univ S-N, Albacete 02071, Spain

来源：

JOURNAL OF AGRICULTURAL SCIENCE | 2016年 / 154卷 / 04期

关键词：

PHOTOSYNTHETICALLY ACTIVE RADIATION; SPECTRAL VEGETATION INDEXES; GROUND COVER; YIELD; REFLECTANCE; NITROGEN; CLIMATE; STRESS; GROWTH;

D O I：

10.1017/S002185961500060X

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The aim of the current research was to analyse the effect of four water irrigation treatments (1.20, 1.00, 0.80 and 0.60 of the crop water requirement) on the relationships among leaf area index (LAI), radiation use efficiency (RUE) and green canopy cover in a potato crop (Solanum tuberosum L.) cv. Agria. The crop was established in a commercial plot irrigated with a centre pivot system in Southeast Spain during the 2011 and 2012 seasons. In both seasons, the highest light absorption efficiency values occurred at the LAI value of 3 that corresponded to maximum ground cover. With regard to the irrigation treatment, a significant linear response was indicated for RUE. The results indicate that the 1.00 irrigation treatment produced the best result, improving water resources management without reducing crop yield.

引用

页码：662 / 673

页数：12

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