| タイトル | Assessing solar energy and water use efficiencies in winter wheat |
| 本文（外部サイト） | http://hdl.handle.net/2060/19830019042 |
| 著者（英） | Hipps, L. E.; Kanemasu, E. T.; Asrar, G. |
| 著者所属（英） | Kansas State Univ. |
| 発行日 | 1982-09-01 |
| 言語 | eng |
| 内容記述 | The water use and solar energy conversion efficiencies of two cultivars of winter wheat (Triticum aestivum L., vars, Centurk and Newton) planted at three densities, were examined during a growing season. Water use, based on soil moisture depletion, was the lowest under the light, and the highest under the heavy planting densities of both cultivars. Water use efficiency of medium and heavy planting densities were greater than the light planting densities in both cultivars. The canopy radiation extinction coefficients of both cultivars increased with increases in planting density. Efficiency of operation interception of photosynthetically active radiation by both cultivars improved from the time of jointing until anthesis, and then decreased during senescence. The efficiency of the conversion of intercepted radiation to dry matter (biochemical efficiency) decreased throughout the growing season both cultivars. The interception, biochemical, and photosynthetic efficiencies improved as planting density increased. |
| NASA分類 | EARTH RESOURCES AND REMOTE SENSING |
| レポートNO | 83N27313
E83-10329
NAS 1.26:171659
SR-M2-04343
CONTRIB-82-555-J
NASA-CR-171659 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/162310 |
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