Effects of Cadmium on Growth and Development of Two Potato Varieties

doi:10.3969/j.issn.1000-7091.2012.01.032

Abstract

Abstract: Effects of cadmium on growth and development of two potato varieties, Kexin No. 1 and Favorite were studied by pot experiments. The results showed that: the toxicity of Cd was increased with the increment of Cd concentration and the plant growth was significantly inhibited. The plant height of Favorite was promoted at Cd concentration of 10 mg/kg. However, the plant height of two varieties was inhibited at Cd concentration of 50 mg/kg. The yield per plant, leaf dry weight, stem dry weight, tuber dry weight, root dry weight were declined under Cd stress. For both varieties, Cd toxicity to different organs ordered: root>tuber>leaf>stem. The resistance of Kexin No. 1 to Cd was better than that of Favorite.

Key words: Cd, Stress, Potato, Growth and development

CLC Number:

S532

BAI Rui-qin, MENG Hai-bo, ZHOU Shuang. Effects of Cadmium on Growth and Development of Two Potato Varieties[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2012, 27(1): 168-172. doi: 10.3969/j.issn.1000-7091.2012.01.032.

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