PT Journal
AU Subrahmanyam, D
TI Genotype Variability in Photosynthetic Characteristics in Finger Millet
SO Photosynthetica
PY 2000
BP 105
EP 109
VL 38
IS 1
DI 10.1023/A:1026756210347
WP https://ps.ueb.cas.cz/artkey/phs-200001-0020.php
DE area leaf mass; Eleusine coracana; grain mass; harvest index; internal CO2 concentration; leaf area; net photosynthetic rate; stomatal conductance; transpiration
SN 03003604
AB High variability in leaf gas exchange and related traits were found in 30 genotypes of field grown finger millet. The variability in carbon exchange rate per unit leaf area (P <sub>N</sub>) can be partly attributed to the differences in the stomatal conductance (g<sub>s</sub>) and area leaf mass (ALM). The P <sub>N</sub> was positively correlated with total dry matter (TDM). However, no relationship between P <sub>N</sub> and seed yield was found. The leaf area showed a positive and significant correlation with total biomass. None of the other gas-exchange traits had significant relationship either with TDM or with seed yield. The ALM showed a strong positive association with P <sub>N</sub>. However, it was not correlated with either total biomass or seed yield. As a result, the use of ALM as surrogate for P <sub>N</sub> for identifying high biomass producing genotypes only had a limited value. Hence selection for high P <sub>N</sub> would result in higher biomass producing types.
ER