Screening of Tomato (Solanum lycopersicum), Brinjal (Solanum melongena) and Chilli (Capsicum annuum) Genotypes for Photosynthetic Efficiency and Productivity Using Non-Destructive physiological Tools
S Nadaradjan
Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, UT of Puducherry, India.
K Manojkumar *
Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, UT of Puducherry, India.
G. Hemalatha
Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, UT of Puducherry, India.
Premkumar A
Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, UT of Puducherry, India.
D Deerajkumar
Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, UT of Puducherry, India.
D Prethika
Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, UT of Puducherry, India.
S Priyanga
Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, UT of Puducherry, India.
R Rajalakshmi
Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, UT of Puducherry, India.
R Savitha
Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, UT of Puducherry, India.
*Author to whom correspondence should be addressed.
Abstract
The present study evaluated the physiological performance of different genotypes in three crops such as tomato, brinjal and chilli with the aim of screening crop genotypes for improved physiological efficiency and productivity by using portable equipment for photosynthesis and chlorophyll measurement. Photosynthetic rate was measured using a portable photosynthetic system (PPS meter with an Infrared Gas Analyzer, IRGA), photosynthetic efficiency was measured using the Fv/Fm ratio with a fluorometer and chlorophyll content was approximated with the CCM chlorophyll content meter. Tomato had higher overall physiological efficiency for the three parameters. The study shows the potential of the integration of IRGA-based photosynthetic systems, chlorophyll fluorescence (Fv/Fm) and CCM meters to screen crop genotypes for improved physiological efficiency and productivity.
Keywords: Photosynthetic efficiency, photosynthesis, plant growth, crop physiology