Growth and Nitrogen Fixation of Phaseolus vulgaris L. at Two Irradiances 1. Growth
- 1 March 1978
- journal article
- research article
- Published by Oxford University Press (OUP) in Annals of Botany
- Vol. 42 (2), 389-397
- https://doi.org/10.1093/oxfordjournals.aob.a085472
Abstract
Plants of Phaseolus vulgaris grown at 7 and 28 W m−2 showed no differences in rate of development of leaves or flowers. At 7 W m-Z plants had longer internodes, more succulent stems and leaves, higher ratios of shoot:root and greater leaf areas that those at 28 W m−2. These differences were established prior to detectable differences in photosynthesis and could partly be attributed to an increased proportion of far-red light. Although the final d. wt, carbon content, and fruit yield were higher at 28 W m−2, plants at 7 W m−2 apparently had similar relative growth rates and greater photosynthetic efficiency. Dry weight differences are most easily interpreted as resulting from the establishment of an earlier net carbon gain at 28 W m−2 than at 7 W m−2.This publication has 4 references indexed in Scilit:
- The translocation of14C photosynthate from leaves and pods in Phaseolus vulgarisAnnals of Applied Biology, 1976
- The influence of blue- and red-biased light spectra on the growth and development of plantsAgricultural Meteorology, 1976
- Physiological and Ecological Studies in the Analysis of Plant EnvironmentAnnals of Botany, 1967
- Response of Birdsfoot Trefoil and Alfalfa to Various Levels of Shade 1Crop Science, 1966