Journal of Food, Agriculture and Environment




Physiological and biochemical response of sorghum plants (Sorghum bicolor) subjected to water deficit


Author(s):

Cândido Ferreira de Oliveira Neto *, Roberto Rivelino do Nascimento Barbosa, Lucila Elizabeth Fragoso Monfort, Heráclito Eugênio Oliveira da Conceição, Raimundo Thiago Lima da Silva, Ismael de Jesus Matos Viégas, Roberto Cezar Lobo da Costa, Wilson José de Mello e Silva Maia, Daiane de Cinque Mariano, Ricardo Shigueru Okumura

Recieved Date: 2015-04-28, Accepted Date: 2015-09-14

Abstract:

Sorghum has a great growth potential cultivation in Brazil since offering resistance to water deficit. The aim of the study was to evaluate the physiological and biochemical behavior in sorghum plants subjected to water deficit. The experiment was conducted in a greenhouse at the Universidade Federal Rural da Amazonia, in Belém city, State of Pará, Brazil. The experimental design was completely randomized in a 2 x 3 factorial scheme: two water conditions (control and water deficit) and three evaluation periods (vegetative stage, reproductive stage and physiological maturity). The results indicated that water deficit provided an increase in concentrations of proline, carbohydrates, sucrose and glycine betaine. While the starch, chlorophyll (a, b, total) and carotenoids were significantly reduced with water deficit condition. In water deficit conditions sorghum plants showed a drastic change in the physiological and biochemical behaviour.

Keywords:

Osmoprotectors, drought tolerance, abiotic stress


Journal: Journal of Food, Agriculture and Environment
Year: 2015
Volume: 13
Issue: 3&4
Category: Agriculture
Pages: 79-85


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