Effect of Zinc Cadmium Germination of Medicago sativa Seeds and Growth of Seeding

doi:10.3321/j.issn:1000-7091.2005.01.024

Abstract

Abstract: In our country, water crisis is increasingly serious and the pollution eara of soil heavy metal Cadmium expands continuously. Under this situation, my dissertation studys alfalfa which has good economic value and strong drought and cold resistance. Effect of Cd²⁺,Zn²⁺on seed-percentage, growth of root and plumule from medicago sativa was studied. The results showed that Cd²⁺,Zn²⁺of lower concentration could raise germination precentage with viability and index of seed vigor, promote plumule growth. It has been indicated by the experiment that high concentration Cd²⁺,Zn²⁺ could reduce gernination perentage with viability and index of seed their vigor. In the meantime, Cd²⁺,Zn²⁺ exhibited more inhibition on root growth than on plumule. Effect of combined treatment is bigger than Cd²⁺ treatment or Zn²⁺ treatment.

Key words: Medicago sativa, Cadmium, Zinc, Effects, Seed germination, Seeding growth

CLC Number:

S541

ZHANG Chun-rong, LI Hong, XIA Li-jiang, REN Li-ping, RAO Zhen-hong,. Effect of Zinc Cadmium Germination of Medicago sativa Seeds and Growth of Seeding[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2005, 20(1): 96-99. doi: 10.3321/j.issn:1000-7091.2005.01.024.

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