Effects of Temperature, Light Intensity and Nitrogen Application on the Recovery of Photosynthesis in the Senescent Primary Leaves by the Removal of Foliage Leaves in Snap Bean

DOI JASI Web Site 19 References Open Access

Bibliographic Information

Other Title
  • インゲンマメの老化初生葉における本葉切除による光合成の回復に及ぼす温度, 光強度および窒素施用の影響

Search this article

Description

The effects of three environmental factors on the recovery of net photosynthetic rate (Pn) in the senescent primary leaves by the removal of foliage leaves in snap bean plants (Phaseolus vulgaris L.) were examined. Effects of temperature were examined under three different conditions : 23/18, 25/20, and 28/23°C (day/night) . Under these conditions, Pn at 25°C were not affected. Effects of light intensity were examined by covering the primary leaves with 1-3 layers of black cheesecloth. The recovery of Pn on a fresh weight basis decreased with increasing shade level. However, any difference was not observed in Pn on a dry weight basis. Since shading with black cheesecloth increased leaf extension and decreased leaf thickness, the effect of light intensity appeared to be through the effect on leaf morphology. Effects of nitrogen were examined by applying three different levels of nitrogen during the different experimental period. It became evident that the nitrogen level in the nutrient solution applied to plants is an important environmental factor affecting the recovery of Pn.

Journal

  • Environment Control in Biology

    Environment Control in Biology 42 (2), 113-121, 2004

    Japanese Society of Agricultural, Biological and Environmental Engineers and Scientists

References(19)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top