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Assessment of physiological and biochemical responses of chili (Capsicum annuum L.) varieties in floating bed cultivation for adaptation to waterlogged areas of Bangladesh

Md. Al-Imran, Dipalok Karmaker, Shawon Mitra, Ishita Haider, Md. Alimur Rahman, Subroto Das

Abstract

Chili is an important spice crop in Bangladesh. This crop is very much sensitive to waterlogging condition. Besides Floating agriculture system is an innovative agriculture system led by the local people of southern region of Bangladesh in which seedlings of vegetables are produced in low lying areas using different aquatic macrophytes. In this connection, an experiment was carried out to evaluate the probability of chili cultivation in water logging areas through the physiological and biochemical responses under floating agriculture system. To perform the experiment, eight different chili varieties were subjected to floating agriculture in two different agronomic seasons. Besides a soil-based chili cultivation system is also performed to compare the rationality of this method. For this purpose, different agronomic traits like Plant water status, photosynthetic parameters, concentration of Na+. K+, NO3− and PO43−, chlorophyll content, ascorbic acid and proline in leaf tissue were assessed to evaluate the performance of chili on floating bed. This study shows, macrophytes utilized in floating bed provides favorable condition for chili cultivation in water logging condition. Among the different varieties Sakata 653 in summer and Jhilik in winter response better than others. As the performance of chili in floating agriculture system is satisfactory in comparison with soil-based cultivation system, floating agriculture system can be an alternative agronomic condition for chili cultivation in waterlogged areas of Bangladesh.

FP24084  Accepted 22 July 2024

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