ISSN:
1573-9058
Keywords:
intercellular CO2 concentration
;
leaf biomass
;
net photosynthetic rate
;
stomatal conductance
;
transpiration rate
;
water use efficiency
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The net photosynthetic rate (P N), intercellular CO2 concentration (C i), stomatal conductance (g s), transpiration rate (E), water use efficiency (WUE), and leaf biomass production of four American flue-cured tobacco (Nicotiana tabacum L.) cultivars K 326, K 358, and Speight G 28 were compared with three local Indian cultivars 16/103, Special FCV, and PCT-7, during 1994 and 1995 crop seasons under irrigated and rainfed production systems (Northern light soils, NLS, and Karnataka light soils, KLS) in India. By comparison, the American tobacco cv. K 326 showed the highest P N and g s. A positive correlation was found between P N and biomass production in all the varieties tested (r = 0.55 in NLS and 0.73 in KLS). The American cultivars were superior than the local cultivars in their biomass production and P N under Indian farming conditions.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1007187928932
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