Effect of Hg,Cr and Pb Single Pollution to Photosynthesis in Mung Bean

doi:10.7668/hbnxb.2009.01.007

Abstract

Abstract: With Jinlu 2 as test material,a pot experiment was conducted to study the effects of treatment of sigleheavy metal(Hg²⁺,Cr³⁺,Pb²⁺)on the photosynthesis of mung bean in podding period. The result showed,compared withCK,the chlorophyll a,chlorophyll b,chlorophyll a to chlorophyll b,net photosynthesis rate,transpiration rate,stomatalconductance and intercellular COz concentration were reduced by different degree with the the increase of concentration ofsingle treatment of Hg²⁺,Cr³⁺and Pb²⁺Low concentration Cr³⁺and Pb²⁺had promoter action on chlorophyll a,chloro-phyll b,transpiration rate,stomatal conductance and intercellularCO₂concentration. The inhibited effect of Hg²⁺on thephotosynthesis of mung bean in podding period was the greatest in three heavy metal.

Key words: Hg,Cr and Pb, Mung bean, Photosynthesis

CLC Number:

S522.01

GUO Feng, FAN Wen-hua. Effect of Hg,Cr and Pb Single Pollution to Photosynthesis in Mung Bean[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2009, 24(1): 26-30. doi: 10.7668/hbnxb.2009.01.007.

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