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2003•Acta Pratacultural ScienceRequires access

Effects of Ca on cold tolerance and related physiological indices of alfalfa seedlings

You Ji

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Abstract

Effects of calcium on cold tolerance and related physiological indices of alfalfa seedlings were studied. Tumuji and Gongnong No.1 alfalfa seedlings were treated by low temperature stress after soaking their seeds in 50 mmol/L of CaCl2 solution. The results showed that the cold tolerance of Tumuji and Gongnong No.1 alfalfa was enhanced by calcium. The activities of SOD, POD, CAT and the contents of proline and ascorbic acid in their seedlings were increased by calcium. It could be inferred that the Ca2+ enhancing cold tolerance of Tumuji and Gongnong No.1 alfalfa is probably related to increase activities of SOD, POD, CAT, and contents of proline and ascorbic acid.

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Effects of calcium on cold tolerance and related physiological indices of alfalfa seedlings were studied. Tumuji and Gongnong No.1 alfalfa seedlings were treated by low temperature stress after soaking their seeds in 50 mmol/L of CaCl2 solution. The results showed that the cold tolerance of Tumuji and Gongnong No.1 alfalfa was enhanced by calcium. The activities of SOD, POD, CAT and the contents of proline and ascorbic acid in their seedlings were increased by calcium. It could be inferred that the Ca2+ enhancing cold tolerance of Tumuji and Gongnong No.1 alfalfa is probably related to increase activities of SOD, POD, CAT, and contents of proline and ascorbic acid.

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Available abstract

Effects of calcium on cold tolerance and related physiological indices of alfalfa seedlings were studied. Tumuji and Gongnong No.1 alfalfa seedlings were treated by low temperature stress after soaking their seeds in 50 mmol/L of CaCl2 solution. The results showed that the cold tolerance of Tumuji and Gongnong No.1 alfalfa was enhanced by calcium. The activities of SOD, POD, CAT and the contents of proline and ascorbic acid in their seedlings were increased by calcium. It could be inferred that the Ca2+ enhancing cold tolerance of Tumuji and Gongnong No.1 alfalfa is probably related to increase activities of SOD, POD, CAT, and contents of proline and ascorbic acid.

Key concepts: Proline, Ascorbic acid, Point of delivery, Calcium, Cold tolerance, Cold stress, Horticulture, Chemistry

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