Peanut leaf area index,light interception,radiation use efficiency,and harvest index at three sites in Texas |
| |
| Institution: | 1. Department of Food, Agriculture and Bioresources, School of Environment, Resources and Development, Asian Institute of Technology, Pathum Thani, Thailand;2. Agronomy Department, Zagazig University, Sharqia, Egypt;3. Interdisciplinary Center of Energy Planning, State University of Campinas, São Paulo, Brazil;1. Crop Genetics and Breeding Research Unit, USDA-ARS, Tifton, GA, USA;2. Texas A&M AgriLife Research, and Department of Plant and Soil Science, Texas Tech University, Lubbock, TX, USA;3. Department of Crop, Soil and Environmental Sciences, Auburn University, Auburn, AL, USA;4. International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad, India;5. Department of Agronomy, Agricultural University of Hebei, Baoding, China;6. Horticulture Department, University of Georgia Tifton Campus, Tifton, GA, USA;1. Department of Plant and Soil Sciences, Texas Tech University, Lubbock, TX 79409, United States;2. Cropping System Research Laboratory, USDA-ARS, Lubbock, TX 79415, United States;3. Texas A&M AgriLife Research and Extension, Lubbock, TX 79403, United States;4. New Mexico State University, Agricultural Science Center, Clovis, NM 88101, United States;5. College of Natural Sciences, Forestry, and Agriculture, Maine Agricultural and Forest Experiment Station, Orono, ME 04469, United States;6. Office of Field Operations, USDA FSIS, Dallas, TX, 75242, United States;7. Hawkesbury Institute for the Environment, Western Sydney University, Richmond, NSW 2753, Australia;1. Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas, Físico — Químicas y Naturales, Universidad Nacional de Río Cuarto, Ruta 36, Km 601 (5800), Río Cuarto, Córdoba, Argentina;2. Members of the Research Carrier CONICET, Argentina;3. Institute of Entomology and Plant Pathology, Faculty of Agriculture, Università Cattolica del Sacro Cuore, via Emilia Parmense 84, I-29122 Piacenza, Italy |
| |
| Abstract: | Stability of parameters describing crop growth of peanut (Arachis hypogaea L.) is important because of the diversity of climatic conditions in which peanuts are grown and is valuable when developing simulation models for this species. In contrast, variability in the same parameters is desirable for plant breeders working to develop improved cultivars. This study seeks to quantify key parameters for biomass and yield production of some common peanut cultivars at three sites in Texas. We measured leaf area index (LAI), light extinction coefficient (k) for Beer's law, and harvest index (HI) for four cultivars at Stephenville, TX and one cultivar near Gustine, TX, and for LAI and biomass on four cultivars at Seminole, TX. Mean radiation use efficiency (RUE) values were 1.98 g MJ−1 at Stephenville, 1.92 at Gustine, and 2.02 at Seminole. Highest RUE values were for the Low-Energy Precise Application (LEPA) irrigation treatment at Seminole. Maximum LAI values ranged from 5.6 to 7.0 at Stephenville, from 5.0 to 6.2 at Seminole, and was 5.3 at Gustine. Mean k values ranged from 0.60 to 0.64 at Stephenville and was 0.77 at Gustine. The overall mean HI was 0.36, with a mean of 0.33 for Stephenville, 0.44 for Gustine, 0.53 for spray irrigation at Seminole, and 0.58 for LEPA irrigation at Seminole. Values of RUE, k, and HI for the cultivars in this study and similarities between this study and values reported in the literature will aid modelers simulating peanut development and yield and aid breeders in identifying key traits critical to peanut grain yield improvement. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
