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Effect of Planting Density and Fertilizer Rate on Some Physiological Parameters of Arabica Coffee Seedlings

Received: 31 August 2021     Accepted: 12 October 2021     Published: 28 October 2021
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Abstract

Planting high density can reduce photosynthetic active radiation due to mutual shading or low light interception. The nature of the canopy and utilization of solar radiation influence the performances of coffee genotype. This study was designed to evaluate the effect of planting density and fertilizer rate on physiological parameters of Arabica coffee seedlings under nursery conditions. It was conducted at the Jimma Agricultural Research Center in southwest Ethiopia in 2018 season. A factorial experimentation in a completely randomized design with three replications was used for the study. The treatments consisted of combinations of two Arabica coffee cultivars (compact-74110 and open-75227), four population densities per polythene tube (one, two, three and four) and three compound NPK fertilizer (22:6:12 + Te) rates (control, 5g and 10g). The most common plant physiological parameters including NAR, AGR, RGR and CGR were estimated and analyzed using standard procedures. The results showed that interaction between cultivar, population density and fertilizer significantly (P ≤0.05) influenced NAR and CGR, and highly significantly (P ≤0.01) influenced AGR and RGR. The highest values of NAR, AGR, RGR and CGR were recorded from the lowest population density (PD1) and increased in the order of PD1 > PD2 > PD3 > PD4 for each parameter. Application of 5g of NPK significantly enhanced NAR, AGR, RGR and CGR as compared with other fertilizer rates, while these parameters were observed to decrease for 10g of NPK perhaps due to toxicity problem. In general, high planting density decrease physiological parameters of the coffee plant, so more attention like intensive coffee tree management practices as well as optimization of population density should be done under field conditions to increase physiological parameters of the coffee plant.

Published in International Journal of Science, Technology and Society (Volume 9, Issue 5)
DOI 10.11648/j.ijsts.20210905.13
Page(s) 222-227
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Coffee Nursery, Physiological Parameters, Compound Fertilizer, Population Density

References
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    Wubishet Tamirat, Amsalu Gobena, Taye Kufa. (2021). Effect of Planting Density and Fertilizer Rate on Some Physiological Parameters of Arabica Coffee Seedlings. International Journal of Science, Technology and Society, 9(5), 222-227. https://doi.org/10.11648/j.ijsts.20210905.13

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    ACS Style

    Wubishet Tamirat; Amsalu Gobena; Taye Kufa. Effect of Planting Density and Fertilizer Rate on Some Physiological Parameters of Arabica Coffee Seedlings. Int. J. Sci. Technol. Soc. 2021, 9(5), 222-227. doi: 10.11648/j.ijsts.20210905.13

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    AMA Style

    Wubishet Tamirat, Amsalu Gobena, Taye Kufa. Effect of Planting Density and Fertilizer Rate on Some Physiological Parameters of Arabica Coffee Seedlings. Int J Sci Technol Soc. 2021;9(5):222-227. doi: 10.11648/j.ijsts.20210905.13

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  • @article{10.11648/j.ijsts.20210905.13,
      author = {Wubishet Tamirat and Amsalu Gobena and Taye Kufa},
      title = {Effect of Planting Density and Fertilizer Rate on Some Physiological Parameters of Arabica Coffee Seedlings},
      journal = {International Journal of Science, Technology and Society},
      volume = {9},
      number = {5},
      pages = {222-227},
      doi = {10.11648/j.ijsts.20210905.13},
      url = {https://doi.org/10.11648/j.ijsts.20210905.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijsts.20210905.13},
      abstract = {Planting high density can reduce photosynthetic active radiation due to mutual shading or low light interception. The nature of the canopy and utilization of solar radiation influence the performances of coffee genotype. This study was designed to evaluate the effect of planting density and fertilizer rate on physiological parameters of Arabica coffee seedlings under nursery conditions. It was conducted at the Jimma Agricultural Research Center in southwest Ethiopia in 2018 season. A factorial experimentation in a completely randomized design with three replications was used for the study. The treatments consisted of combinations of two Arabica coffee cultivars (compact-74110 and open-75227), four population densities per polythene tube (one, two, three and four) and three compound NPK fertilizer (22:6:12 + Te) rates (control, 5g and 10g). The most common plant physiological parameters including NAR, AGR, RGR and CGR were estimated and analyzed using standard procedures. The results showed that interaction between cultivar, population density and fertilizer significantly (P ≤0.05) influenced NAR and CGR, and highly significantly (P ≤0.01) influenced AGR and RGR. The highest values of NAR, AGR, RGR and CGR were recorded from the lowest population density (PD1) and increased in the order of PD1 > PD2 > PD3 > PD4 for each parameter. Application of 5g of NPK significantly enhanced NAR, AGR, RGR and CGR as compared with other fertilizer rates, while these parameters were observed to decrease for 10g of NPK perhaps due to toxicity problem. In general, high planting density decrease physiological parameters of the coffee plant, so more attention like intensive coffee tree management practices as well as optimization of population density should be done under field conditions to increase physiological parameters of the coffee plant.},
     year = {2021}
    }
    

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  • TY  - JOUR
    T1  - Effect of Planting Density and Fertilizer Rate on Some Physiological Parameters of Arabica Coffee Seedlings
    AU  - Wubishet Tamirat
    AU  - Amsalu Gobena
    AU  - Taye Kufa
    Y1  - 2021/10/28
    PY  - 2021
    N1  - https://doi.org/10.11648/j.ijsts.20210905.13
    DO  - 10.11648/j.ijsts.20210905.13
    T2  - International Journal of Science, Technology and Society
    JF  - International Journal of Science, Technology and Society
    JO  - International Journal of Science, Technology and Society
    SP  - 222
    EP  - 227
    PB  - Science Publishing Group
    SN  - 2330-7420
    UR  - https://doi.org/10.11648/j.ijsts.20210905.13
    AB  - Planting high density can reduce photosynthetic active radiation due to mutual shading or low light interception. The nature of the canopy and utilization of solar radiation influence the performances of coffee genotype. This study was designed to evaluate the effect of planting density and fertilizer rate on physiological parameters of Arabica coffee seedlings under nursery conditions. It was conducted at the Jimma Agricultural Research Center in southwest Ethiopia in 2018 season. A factorial experimentation in a completely randomized design with three replications was used for the study. The treatments consisted of combinations of two Arabica coffee cultivars (compact-74110 and open-75227), four population densities per polythene tube (one, two, three and four) and three compound NPK fertilizer (22:6:12 + Te) rates (control, 5g and 10g). The most common plant physiological parameters including NAR, AGR, RGR and CGR were estimated and analyzed using standard procedures. The results showed that interaction between cultivar, population density and fertilizer significantly (P ≤0.05) influenced NAR and CGR, and highly significantly (P ≤0.01) influenced AGR and RGR. The highest values of NAR, AGR, RGR and CGR were recorded from the lowest population density (PD1) and increased in the order of PD1 > PD2 > PD3 > PD4 for each parameter. Application of 5g of NPK significantly enhanced NAR, AGR, RGR and CGR as compared with other fertilizer rates, while these parameters were observed to decrease for 10g of NPK perhaps due to toxicity problem. In general, high planting density decrease physiological parameters of the coffee plant, so more attention like intensive coffee tree management practices as well as optimization of population density should be done under field conditions to increase physiological parameters of the coffee plant.
    VL  - 9
    IS  - 5
    ER  - 

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Author Information
  • Ethiopian Institute of Agricultural Research, Jimma Agricultural Research Center, Jimma, Ethiopia

  • College of Agriculture, School of Plant and Horticultural Sciences, Hawassa University, Hawassa, Ethiopia

  • International Institute of Tropical Agriculture, Burundi-Station, Bujumbura, Burundi

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