Peanut as a potential crop for bioenergy production via Cd-phytoextraction: A life-cycle pot experiment

Su, G. and Li, F. and Lin, J. and et al, . (2012) Peanut as a potential crop for bioenergy production via Cd-phytoextraction: A life-cycle pot experiment. Plant Soil. 9 pp..

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Aims The current study aimed to assess the potential of peanut (Arachis hypogaea L.) for bioenergy production via phytoextraction in cadmium (Cd) -contaminated soils and screen appropriate cultivars for this approach. Methods A life-cycle pot experiment was conducted to determine the biomass, seed yield, oil content and Cd accumulation of seven peanut cultivars under Cd concentration gradients of 0, 2, and 4 mg kg−1. Results Peanut exhibits genotypic variations in Cd tolerance, seed production, oil content, and Cd accumulation. Exposure of plants to 2 and 4 mg kg−1 Cd did not inhibit shoot biomass, seed yield, and oil content for most of the cultivars tested. There are large amounts of Cd accumulated in the shoots. Although the seed Cd concentration of peanut was relatively high, the Cd concentration in seed oils was very low (0.04-0.08 mg kg−1). Among the cultivars, Qishan 208 showed significant Cd tolerance, high shoot biomass, high pod and seed yield, high seed oil content, considerable shoot Cd concentration, and the largest translocation factor and total Cd in shoots.

Item Type: Article
Additional Information: The National Natural Science Foundation of China (No. 31171464) and the Anhui Provincial Natural Science Foundation (No. 11040606 M87) are gratefully acknowledged for their financial support.
Uncontrolled Keywords: Peanut, Bioenergy production, Cadmium accumulation, Cadmium tolerance, Phytoextraction
Author Affiliation: College of Life Sciences, Huaibei Normal University, Huaibei 235000, People’s Republic of China
Subjects: Plant Protection
Divisions: Groundnut
Depositing User: Mr Siva Shankar
Date Deposited: 13 Aug 2012 06:34
Last Modified: 13 Aug 2012 06:35
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