PT  - JOURNAL ARTICLE
AU  - Subrahmanyam, Desiraju
TI  - Genotype Variability in Photosynthetic Characteristics in Finger Millet
DP  - 2000 Apr 1
TA  - Photosynthetica
PG  - 105--109
VI  - 38
IP  - 1
AID - 10.1023/A:1026756210347
IS  - 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 &lt;sub&gt;N&lt;/sub&gt;) can be partly attributed to the differences in the stomatal conductance (g&lt;sub&gt;s&lt;/sub&gt;) and area leaf mass (ALM). The P &lt;sub&gt;N&lt;/sub&gt; was positively correlated with total dry matter (TDM). However, no relationship between P &lt;sub&gt;N&lt;/sub&gt; 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 &lt;sub&gt;N&lt;/sub&gt;. However, it was not correlated with either total biomass or seed yield. As a result, the use of ALM as surrogate for P &lt;sub&gt;N&lt;/sub&gt; for identifying high biomass producing genotypes only had a limited value. Hence selection for high P &lt;sub&gt;N&lt;/sub&gt; would result in higher biomass producing types.