Photosynthesis Under Field Conditions. VII. Radiant Energy Exchanges Within a Corn Crop Canopy and Implications in Water Use Efficiency1

Autor: Allen, L. H., Yocum, C. S., Lemon, E. R.
Zdroj: Agronomy Journal; May 1964, Vol. 56 Issue: 3 p253-259, 7p
Abstrakt: Data are assembled giving sinks of shortwave radiation within a corn crop canopy. From these data, and from net radiation measurements obtained at 225‐, 175‐, 100‐, and 20‐cm. heights within a crop of corn 300 cm. high, net thermal radiation is calculated at those respective heights. Transmission data at those heights, using a Miller field light transmission photometer, indicate that shortwave transmission can be expressed as an exponential function of height as well as of cumulative leaf area index.
Databáze: Supplemental Index