Photosynthesis Under Field Conditions. IV. Light Studies with Individual Corn Leaves 1

  title={Photosynthesis Under Field Conditions. IV. Light Studies with Individual Corn Leaves 1},
  author={John D. Hesketh and Robert B. Musgrave},
  journal={Crop Science},
The shape of the light response curve of individual leaves has recently become important in models for light absorption by field crops. Studies of the light response of individual corn leaves under sunlight is discussed. A leaf chamber technique for the continuous measurement of net assimilation of CO/sub 2/ by a leaf or corn ear was developed. Uptake rates of corn leaves under optimum light were of the order of 45 mg. of CO/sub 2/ per square decimeter leaf area per hour. Corn ear temperature… 

Figures from this paper

Effect of mutual shading on dry-matter production in the tropical rice plant

The leafiness of plants may be described by the use of the lea/ area index (LAI), which is defined as the total area of leaves per unit area of land surface, which influences not only total drymatter production but rice yield as well.

I. Studies on the Photosynthetic Activity in Several Kinds of Fruit Trees

At higher temperatures than optimum, the photosynthetic activity was decreased rapidly with increasing leaf temperatures in Japanese persimmons, figs, peaches and chestnuts, but in grapes and satsuma mandarins it was lowered gradually.

Photosynthesis of the rice plant under water stress

Abstract Leaf-resistance values sharply decreased after sunrise, remained low during daytime, and increased sharply toward sunset. This general pattern was modified by weather conditions and

Prediction of Net Photosynthesis of Trees From Light Intensity and Temperature

Daily rates of net photosynthesis of tree leaves were predicted from sunlight and temperature conditions near leaf surfaces for oaks in a coastal plain forest on Long Island, New York. Predictions

The effect of plant density on the micro climate of sunflower (helianthus annus l) crop in a medium potential, semi-humid area in Kenya

rhe relationship between soil factors (soil moisture, soil temperature and soil nutrients), plant factors (stomatal conductance, leaf temperature, leaf area index (1 AI) and photosynthetic rate) and

On the factor light in plant communities and its importance for matter production. 1953.

The development of the production structure of a plant community, especially of the photosynthetic system, is strongly constrained by matter production, which is clearly demonstrated by observations of the seasonal development of Phragmites–Sanguisorba associations and of vine communities.

Effects of shading and nitrogen on growth of corn (Zea mays L.) under field conditions

During the vegetative period, N increased dry matter yield per plant, and the rate of increase was enhanced at higher light levels, and this was consistent in both years.

Determination of the Rate of CO(2) Evolution by Green Leaves in Light.

A light stimulated CO( 2) evolution from green leaves was found in all the plant species studied except corn where there was no apparent CO(2) evolution in the light.

2 - Canopy Photosynthesis: History, Measurements, and Models