Institute of Pomology and Olericulture

China

Institute of Pomology and Olericulture

China
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Lin L.,Institute of Pomology and Olericulture | Wang X.,Institute of Pomology and Olericulture | Liang D.,Institute of Pomology and Olericulture | Xia H.,Institute of Pomology and Olericulture | And 2 more authors.
Environmental Progress and Sustainable Energy | Year: 2016

Mulching with the straws of Trifolium repens, Conyza canadensis and Stellaria media increased the root, stem, leaf, shoot and whole-plant biomasses of Cyphomandra betacea seedlings under cadmium (Cd) stress compared with the control, increased the chlorophyll a, chlorophyll b, total chlorophyll and carotinoid contents, and improved superoxide dismutase, peroxidase, and catalase activities. However, the straw of Eclipta prostrata decreased the biomass, photosynthetic pigment content and antioxidant enzyme activity of Cyphomandra betacea seedlings under Cd stress compared with the control. Mulching with the straws of Trifolium repens, Eclipta prostrate, and Stellaria media increased the Cd contents in roots, stems, leaves, and shoots of Cyphomandra betacea seedlings compared with control, while the straw of Conyza canadensis decreased the Cd content. Therefore, mulching with Conyza canadensis can promote the growth of Cyphomandra betacea seedlings, and decrease their Cd accumulation, which benefits the safe production of Cyphomandra betacea. © 2016 American Institute of Chemical Engineers Environ Prog.


Wang J.,Chengdu University of Technology | Liu C.,Chengdu University of Technology | Zhang X.,Chengdu University of Technology | Lin L.,Institute of Pomology and Olericulture | And 4 more authors.
Environmental Progress and Sustainable Energy | Year: 2015

The effects of application of the straw of cadmium accumulating species (Youngia erythrocarpa (cadmium hyperaccumulator), Bidens pilosa (cadmium hyperaccumulator), Solanum photeinocarpum (potential cadmium hyperaccumulator), and Siegesbeckia orientalis (cadmium accumulator)) in cadmium contaminated soil on the growth and cadmium accumulation of Galinsoga parviflora were studied. The root biomass, stem biomass, shoot biomass, total biomass, and the antioxidant enzyme activity of G. parviflora were increased by application of the straw of Y. erythrocarpa. The straw of Y. erythrocarpa, S. orientalis, and B. pilosa reduced soil pH, increased the soil exchangeable Cd concentration, and increased the Cd contents in stems, leaves, and shoots of G. parviflora compared with the control. The straw of Y. erythrocarpa and B. pilosa increased the Cd extraction amount in stems, leaves, shoots and the whole plant of G. parviflora compared with the control, with the effect of Y. erythrocarpa higher than that of B. pilosa. Therefore, the straw of Y. erythrocarpa and B. pilosa improved the Cd extraction ability of G. parviflora from cadmium-contaminated soil, and the straw of Y. erythrocarpa demonstrated to be the best material. © 2015 American Institute of Chemical Engineers Environ Prog

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