Exogenous application of ascorbic acid alleviates chilling injury in apricot ( Prunus armeniaca L. cv. Shahroudi) flowers

Exogenous application of ascorbic acid alleviates chilling injury in apricot ( Prunus armeniaca L. cv. Shahroudi) flowers

Автор: Bayat Hassan, Noghondar Morteza Alirezaie, Neamati Hossein, Nezami Ahmad

Журнал: Журнал стресс-физиологии и биохимии @jspb

Статья в выпуске: 3 т.9, 2013 года.

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One of the most important limiting factors in spread of apricot in Iran is late spring frost, which damages flower bud and decrease total yield of crop. It has been found that ascorbic acid (AA) plays a beneficial role during plant response to chilling and freezing stresses. To evaluate the effects of AA on alleviating of cold stress, the flower buds of Prunus armeniaca L. cv. Shahroudi were sprayed at pink cluster stage with AS at 4 levels (0, 100, 200 and 300 mg. L -1) and were then exposed to artificial cold stress (4 h at – 4 °C) or without cold stress (+ 25°C). Experimental attributes including electrolyte leakage (EL) of flower buds and percentage of damage of pistil, anthers and petals to temperature treatments were determined. The results showed that at - 4°C the lowest and highest percentage of damage and EL of flower buds were observed in application of 200 and 0 mg.L -1 AA, respectively. The highest and lowest percentage of damage of flower organs and EL were obtained in application of 300 and 200 mg. L -1 AA, respectively at + 25 °C. Based on the results of this experiment, AA alleviates the negative effect of cold stress on EL and flower organ damages in apricot cv. Shahroudi, depending on the concentrations of AA used.

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Electrolyte leakage, foliar spray, pink cluster, stress

Короткий адрес: https://sciup.org/14323765

IDR: 14323765

Список литературы Exogenous application of ascorbic acid alleviates chilling injury in apricot ( Prunus armeniaca L. cv. Shahroudi) flowers

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