more-about-biochemical

Drought stress is one of the most important factors limiting the growth and productivity of fig (Ficus

carica L.) in the Iran. Detailed knowledge about the biochemical responses of native figs to drought stress

could contribute to the success of vegetation programs. Four cultivars of fig, ‘Deyme Ahvaz’ (Deym), ‘Sabz

Estahban’ (Sabz), ‘Siah’ and ‘Shahanjir’ (Shah), were selected and subjected to drought by withholding

irrigation for 14 days. Stressed plants were reirrigated and the recovery was studied for 7 days. Control

plants were irrigated daily maintaining soil water content at about field capacity. The levels of pigments

and non-enzymatic antioxidants as well as the activities of antioxidant enzymes were quantified. The

results demonstrate that the four investigated fig cultivars showed a clear difference in their response

to water stress and recovery. Under drought conditions, Deym exhibited higher pigments content and

activities of antioxidant enzymes than other cultivars. Catalase had no major antioxidative function in fig.

Water stress treatment significantly increased -tocopherol concentration but decreased ascorbic acid

content in the studied cultivars.

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