Assessing Solar Energy and Water Use Efficiencies in Winter Wheat

机译：评估冬小麦的太阳能和水分利用效率

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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.

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作者
Asrar, G.; Hipps, L. E.; Kanemasu, E. T.;
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年度 1982
页码 p.1-22
总页数 22
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Agristars project; Evapotranspiration; Insolation; Photosynthesis; Soil moisture; Water consumption; Wheat; Agriculture; Canopies (Vegetation); Data acquisition; Earth resources program; Extinction; Planting;

机译：agristars项目;蒸发蒸腾;日照;光合作用;土壤水分;耗水量;小麦;农业;檐篷（植被）;数据采集;地球资源计划;灭绝;种植;

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Assessing Solar Energy and Water Use Efficiencies in Winter Wheat

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