ACTA AGRICULTURAE BOREALI-SINICA ›› 2017, Vol. 32 ›› Issue (2): 194-199. doi: 10.7668/hbnxb.2017.02.029

Special Issue: Oil crops

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Effects of Low Ca Stress on the Characteristics of Calcium Absorption and Distribution of Different Peanut Cultivars

ZHAO Xiufen, FANG Zengguo   

  1. College of Resources and Environment, Qingdao Agricultural University, Qingdao 266109, China
  • Received:2017-01-05 Published:2017-04-28

Abstract: The effects of low Ca stress on yield,biomass,agronomic characters and calcium absorption,distribution and utilization of different peanut cultivars have been studied in the sand culture pot experiment in order to clarify the characteristics of calcium nutrition of peanuts.Ten cultivars of peanut were selected as experimental materials.The results showed that low Ca stress had no effect on the branch number of most varieties of peanut,but greatly improved single kernel pod number and plant biomass,significantly decreased pod yield and seed yield.Compared with those of the Ca40 group,all the calcium content of shoot,root and shell of different peanut varieties in Ca200 group were significantly higher,but it was no obvious effect on seed Ca content. Calcium distribution ratios of vegetative organ,such as shoot and root were improved by low Ca stress in different peanut varieties,those of reproductive organ,such as shell and seed were decreased,and the extent of reduction of calcium distribution ratios was higher in seed than in shell.Production efficiency and dry matter production efficiency of calcium showed relatively large difference with different peanut varieties,while the difference was slight of calcium utilization efficiency among varieties.The effects of low Ca stress on calcium production efficiency and calcium dry matter production efficiency of peanut were different with cultivars,but it had decreased significantly in calcium utilization efficiency of different varieties.

Key words: Peanut, Cultivars, Low Ca stress, Absorption, Distribution

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Cite this article

ZHAO Xiufen, FANG Zengguo. Effects of Low Ca Stress on the Characteristics of Calcium Absorption and Distribution of Different Peanut Cultivars[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2017, 32(2): 194-199. doi: 10.7668/hbnxb.2017.02.029.

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