Bacterial Isolates as Potential Inoculants for Organic Kale (Brassica oleracea L.) Production in Nueva Ecija
Article Sidebar
Main Article Content
Abstract
Organic agriculture greatly depends on soil microorganisms to produce the optimum amount of nutrients available for plant use. This study was conducted to evaluate the yield and yield components of organic Kale (Brassica oleracea L.) in response to bacterial inoculants. The experiment was conducted in a ten-yearold organic farm at Ramon Magsaysay-Center for Agricultural Resources and Environment Studies, Central Luzon State University (RM-CARES-CLSU), Nueva Ecija. All treatments used 5t/ha recommended rate of organic fertilizer (RROF), varying only with inoculants Enterobacter aerogenes, Enterobacter cloacea, and Bacillus subtilis. Plants applied with organic fertilizer inoculated with E. cloacea increased yield by 27% compared to plants applied with solely organic fertilizer. E. cloacea was also the best inoculant for organic fertilizer based on yield weight per plot and per hectare and the number of survived plants. It is also the most efficient bacterial inoculant for organic fertilizer to enhance the availability of nutrients for optimum organic Kale production. E. aerogenes, on the other hand, stimulated the nitrogen uptake significantly, and although comparable with other treatments, it can induce high dry matter yield and high nitrogen and potassium content of the plant.
Article Details
References
Awal, M.A, Ishak, W., Endan, J., & Haniff, F. (2004). Determination of Specific Leaf Area and Leaf Area-leaf Mass Relationship in Oil Palm Plantation. Asian Journal of Plant Sciences, 3(3): 264–268. https:/doi.org/10.3923/ajps.2004. 264.268
Charwizira, E., De Ruiter, J.M., Maley, S., George, M.J., Dellow, S.J., & Michel, A.J., (2014). Water Use Efficiency of Forage Kale Crops. Proceedings of the 5th Australian Dairy Science Symposium p. 101
Correa, C.V., Cardoso, A.I.I., & Claudio, M.D. T.R. (2013). Produção de repolho em função de doses e fontes de potássio em cobertura. Semina: Ciências Agrárias, 34(5): 2129. https:/ doi.org/10.5433/1679-0359.2013v34n5p2129
Damam, M., Kaloori, K., Gaddam, B., & Kausar, R. (2016). Plant growth-promoting substances (phytohormones) produced by rhizobacterial strains isolated from the rhizosphere of medicinal plants. International Journal Pharmaceutical Science Review, 37(1): 130–136
Deepa, C. K., Dastager, S. G., & Pandey, A. (2010). Isolation and characterization of plant growth promoting bacteria from non-rhizospheric soil and their effect on cowpea (Vigna unguiculata (L.) Walp.) seedling growth. World Journal of Microbiology and Biotechnology, 26(7): 12331240. https://doi.org/10.1007/s11274-009 0293-y
Gupta, G., Parihar, S.S., Ahirwar, N.K., Snehi, S.K., & Singh, V. (2015). Plant Growth Promoting Rhizobacteria (PGPR): Current and Future Prospects for Development of Sustainable Agriculture. Journal of Microbial & Biochemical Technology, 07(02). https://doi org/10.4172/1948-5948.1000188
Gunnars, K.B. (2018, June 29). 10 Health Benefits of Kale. Healthline. https://www.healthline.com nutrition/10-proven-benefits-of-kale
Khalifa, A.Y., Alsyeeh, A.M., Almalki, M.A., & Saleh, F.A. (2016). Characterization of the plant growth promoting bacterium, Enterobacter cloacae MSR1,isolated from roots of non-nodulating Medicago sativa. Saudi Journal of Biological Sciences, 23(1): 79–86. https://doi.org/10.1016/j sjbs.2015.06.008
Maheshwari, D. K., Dubey, R. C., Aeron, A., Kumar, B., Kumar, S., Tewari, S., & Arora, N. K. (2012). Integrated approach for disease management and growth enhancement of Sesamum indicum L. utilizing Azotobacter chroococcum TRA2 and chemical fertilizer. World Journal of Microbiology and Biotechnology, 28(10): 3015–3024. https://doiorg/10.1007/s1 1274-012-1112-4
Ramesh, A., Sharma, S.K., Sharma, M.P., Yadav, N., & Joshi, O.P. (2014). Plant Growth-Promoting traits in enterobacter cloacae subsp. Dissolvens MDSR9 isolated from soybean rhizosphere and its impact on growth and nutrition of soybean and wheat upon inoculation. Agricultural Research, 3(1): 53–66. https://doiorg/10.1007s 40003-014-0100-3
Philippine Council for Agriculture, Aquatic and Natural Resources Research and Development. (2015). Tomato Production Guide. https://www.pressreader.com/philippines agriculture9ggr/20151201/28249288763076
Raza, W., Ling, N., Yang, L., Huang, Q., & Shen, Q. (2016a). Response of tomato wilt pathogen Ralstonia solanacearum to the volatile organic compounds produced by a biocontrol strain Bacillus amyloliquefaciens SQR-9. Scientific Reports, 6(1). https://doi.org/10.1038srep24856
Raza, W., Yousaf, S., & Rajer, F.U. (2016b). Plant growth-promoting activity of volatile organic compounds produced by Bio-control strains. Science Letters Journal, 4(1): 40–43.
Tu, C., Louws, F.J., Creamer, N.G., Paul Mueller, J., Brownie, C., Fager, K., Bell, M., & Hu, S. (2006). Responses of soil microbial biomass and availability to transition strategies from conventional to organic farming systems. Agriculture, Ecosystems & Environment, 113(1–4): 206–215. https://doi.org/10.1016/j agee.2005.09.013
Willer, H., Lernoud, J., & Kemper, L. (2019). The World of Organic Agriculture, Statistics, and Emerging Trends (20 Edition). Research Institute of Organic Agriculture FiBL and IFOAM Organics International, Frick and Bonn.