Effects of Mulching with Hyperaccumulator Straw on Photosynthetic Pigment Contents in Grape Seedlings under Cadmium Stress

2018 1st International Conference on Environment Prevention and Pollution Control Technology

生态环境科学

Wang, Jun^1 ; Liu, Xingwang^2 ; Lin, Lijin^3

College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China^1

Heping Primary School, Chengdu, Sichuan, China^2

Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China^3

关键词: Cadmium stress;    Chlorophyll b;    Content of chlorophyll;    Hyper-accumulators;    Hyperaccumulator;    Photosynthetic pigment contents;    Pot experiment;    Total chlorophyll;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/199/4/042022/pdf
DOI  :  10.1088/1755-1315/199/4/042022

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

To study the effects of mulching with straw of different cadmium hyperaccumulators (Crassocephalum crepidioides, Galinsoga parviflora, Youngia japonica and Gnaphalium affine) on photosynthetic pigment contents in grape seedlings was conducted by a pot experiment under cadmium stress. The results showed that mulching with straw of C. crepidioides and G. parviflora increased the content of chlorophyll a and total chlorophyll of grape seedlings. All the straw-mulch treatments increased the chlorophyll b content of grape seedlings, and the chlorophyll a/b for all the treatments had no significant difference. Except mulching with Y. japonica reduced the content of carotenoid, other straw-mulch treatments increased the carotenoid content of grape seedlings. Especially, mulching with G. parviflora significantly increased the content of chlorophyll a, chlorophyll b, total chlorophyll and carotenoid, with a increasing of 40.60%, 47.85%, 42.80% and 47.79%, respectively. In conclusion, mulching with G. parviflora straw could increase photosynthetic pigment contents of grape seedlings under cadmium stress.