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Fundam Appl Agric. 2018; 3(3): 505-514

Effect of Different Water Regime and Plant Growth Regulators on Growth, Physiology and Yield of Banana (Musa acuminata Cv. Berangan) in Tropical

Md Aiman Takrim Zakaria, Siti Zaharah Sakimin, Ali Baghdadi, Hawa ZE Jaafar, Siti Norliza Mohd Din, Mohd Fauzi Ramlan.

A field investigation under tropical climate was undertaken in the research plot of the Universiti Putra Malaysia, Selangor, Malaysia to study the effects of exogenous application of plant growth regulators on growth performance, physiology changes and biochemical analysis of banana plants (Musa acuminata cv. Berangan) under irrigated and rain-fed condition. The experiment was laid out as split-plot in randomized complete block design. According to the results showed that, banana plants grown under rain-fed condition significantly reduced morphological characters such as plant height, pseudo-stem, canopy diameter, but enhanced accumulation of proline and malondialdehyde content in leaves tissue by stress-treated plants when compared to control. Physiological characters which include total chlorophyll content, relative water content and electrolyte leakage was measured and indicate significant effect under two different water regime conditions. Application of plant growth regulators on Berangan banana under different water regime conditions might be able to tolerate water stress conditions by changes in vapour pressure deficit as affected by decreasing stomata opening besides enhanced net photosynthesis to produce higher yield of banana fruits.

Key words: Keywords: Water regime, water stress, banana, productivity, proline

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