Effects of excessive zinc stress on growth, yield, nutrient uptake and enrichment characteristics of zinc in above-ground organs of rapeseed (Brassica napus)

›› 2011, Vol. 23 ›› Issue (4): 0-791.

• 环境科学 •

Effects of excessive zinc stress on growth, yield, nutrient uptake and enrichment characteristics of zinc in above-ground organs of rapeseed (Brassica napus)

CAO Chun-xin;LIU Xin-hua;ZHOU Qin;JIANG Qiao-jun;YUAN Ming-an;JIANG Hai-dong;*

1Key Laboratory of Crop Physiology and Ecology Ministry of Agriculture, Hi\|Tech Key Laboratory of Information Agriculture, Nanjing 210095, China; 2Jinhua Academic of Agriculture and Sciences, Jinhua 321017, China

Received:1900-01-01 Revised:1900-01-01 Online:2011-07-25 Published:2011-07-25

Abstract

Abstract: A pot experiment was conducted to study the effects of different zinc treatments on growth, yield, and nutrient uptake and enrichment characteristics of zinc in above-ground organs of rapeseed (B. napus cv. ‘Qinyou 9’). Comparing with the control, low zinc level in soil stimulated the rape growth to some extent, but had less effect on the plant biomass, photosynthetic rate yield and main mineral element contents. With the further increase of zinc level in soil, the plant biomass, photosynthetic rate, yield, main mineral element contents, height and main inflorescence length decreased gradually, while number of first branch was less affected. There were significant differences in the enrichment characteristics of zinc in above-ground organs of rapeseed, following an order of stem>seeds.

Key words: zinc, rapeseed, enrichment characteristics

CAO Chun-xin;LIU Xin-hua;ZHOU Qin;JIANG Qiao-jun;YUAN Ming-an;JIANG Hai-dong;*. Effects of excessive zinc stress on growth, yield, nutrient uptake and enrichment characteristics of zinc in above-ground organs of rapeseed (Brassica napus)[J]. , 2011, 23(4): 0-791.

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Effects of excessive zinc stress on growth, yield, nutrient uptake and enrichment characteristics of zinc in above-ground organs of rapeseed (Brassica napus)

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