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In order to breed new eggplant variety with parthenocarpic ability and strong cold-resistance, the six cold-resistant traits of fifteen eggplant resources with parthenocarpic ability were evaluated with grey correlative degree analysis. One non-parthenocarpic resource ‘Shenggao No. 2’ was used as control. The results indicated that ‘29’, ‘32’, ‘30’, ‘XBL’, ‘31-2-1’, ‘TXQ’ and ‘31-2-2’ had strong cold-resistance; ‘HLMQ’, ‘HQ’, ‘ZHQ’, control and ‘HXZ’ had weak cold-resistance; the other four resources had moderate cold-resistance. When suffered cold stress, the resources with strong cold-resistance had a larger increase of SOD, POD, CAT activities and a least increase of MDA content and EL. Among the strong cold-resistant resources, ‘29’, ‘30’, ‘31-2-1’, ‘TXQ’ and ‘31-2-2’ had purplish red fruits and significantly stronger cold-resistance than control, which were suitable for cultivation in south China. ‘32’ and ‘XBL’ with white fruits could be used as breeding materials.

Grey Correlative Degree Analysis on the Cold-Resistant Traits of Parthenocarpic Eggplant