Effects of Plant Growth-Promoting Rhizobacteria and Trichoderma sp. on Potato Growth on Medium Plains


The potato is a horticultural commodity with a high economic value and a consistent selling price. Indonesian potato production, however, remains lower than that of other Asian countries. One reason for this is that environmental sustainability has influenced the expansion of potato cultivation on a plateau, so medium plains have become an alternative. Aside from high-quality seeds, using plant growth-promoting rhizobacteria (PGPR) and Trichoderma sp. as an organic fertilizer is a strategic effort to boost potato yields on medium plains. The focus of this research was to examine how PGPR and Trichoderma sp. affect the growth of potatoes on medium plains. This study was carried out in Temanggung and Sawangan, Magelang, Jawa Tengah, at an altitude of 480 m.a.s.l, using the a complete random design with four different treatments: P0 = control, Treatment P1 = PGPR 20 ml/10 liter water, Treatment P2 = PGPR 40 ml/10 liter water, Treatment P3 = Trichoderma 80 gram/10 liter water, Treatment P4 = Trichoderma 150 gram/10 liter water, and Treatment P5 = PGPR 20 ml/10 liter water + Trichoderma 80 gram/10 liter water. The study found that a combination of PGPR and Trichoderma sp. treatment resulted in better growth than a single PGPR treatment.

Keywords: biopesticide, organic fertilizer, PGPR

[1] [BPS], Badan Pusat Statistik. Luas Panen dan Produksi Kentang 2017- 2019. [Online]. Available: https://jateng.bps.go.id/indicator/55/731/1/luas-panen-danproduksi-kentang.html. [Accessed: 14-Oct-2020].

[2] Djuariah D, Handayani T, Sofiari E. Toleransi Tanaman Kentang ( Solanum tuberosum ) terhadap Suhu Tinggi Berdasarkan Kemampuan Berproduksi di Dataran Medium [Heat Stress Potato (Solanum tuberosum) Tolerance Based on Tuber Production in Medium Altitude] Jurnal Hortikultura. 2017;27(1):1–10.

[3] Zaidi A, Khan MS. Role of nitrogen-fixing plant growth- promoting Rhizobacteria in sustainable production of vegetables: Current Perspective. in A. Zaidi, M.S. Khan (eds.). Microbial strategies for vegetable production (pp: 43-79). Springer International Publishing AG 2017

[4] Ekin Z. Integrated use of humic acid and plant growth promoting rhizobacteria to ensure higher potato productivity in sustainable agriculture. Sustainability. 2017:11(12):1-13.

[5] Nasiri A, Yarnia M, Hassanpanah D, Farahvash F, Khalivand E. The response of different potato cultivars to plant growth-promoting rhizobacteria (PGPRs) and chemical fertilizers in aeroponic culture conditions. Journal of Plant Nutrtition. 2022;45(11):1–11.

[6] Waghunde RR, Rahul MS, Ambalal NS. Trichoderma: A significant fungus for agriculture and environment African Journal of Agricultural Research. 2016;(11)22: 1952–1965.

[7] Kai K, Mine K, Akiyama K, Ohki S, Hayashi H. Anti-plant viral activity of peptaibols, trichorzins HA II, HA V, and HA VI, isolated from Trichoderma harzianum HK-61 Journal of Pesticide Science. 2018;43(4): 283–286.

[8] Purwantisari S, Priyatmojo A, Sancayaningsih RP, Kasiamdari RS, Budihardjo K. Systemic inducing resistance against late blight by applying antagonist Trichoderma Viride Journal of. Physic: Conference Series. 2018;1025(1):1-6.

[9] Firmansyah A, Markum DM, Indriyatno I. Pengaruh komposisi media tanam dan pemberian dosis pupuk PGPR (plant growth promoting rhizobacteria) terhadap pertumbuhan semai ketimunan (Gyrinops versteegii) cabutan [The effect of the composition of planting media and the giving of PGPR (plant growth promoting rhizobavteria] Jurnal Belantara. 2018;1(1) 30–34.

[10] Silva RN, Monteiro VN, Steindorff AS, Gomes EV, Noronha EF, Ulhoa CJ. Trichoderma/pathogen/plant interaction in pre-harvest food security Fungal Biology. 2019;123(8): 565–583.

[11] Purwantisari S, Hastuti B. Uji antagonisme jamur patogen Phytophthora infestans penyebab penyakit busuk daun dan umbi tanaman kentang dengan menggunakan Trichoderma spp. Isolat Lokal. Jurnal Bioma. 2009;11(1): 24-32.

[12] Muhibbudin A, Setiyowati EM, Sektiono AW. Mechanism anatagonism of Trichoderma viride against several types of pathogens and production of secondary metabolites Agrosaintifika. 2021; 4(1): 243–253.

[13] Singh RP, Gangwar SK, Kundu MS. Trichoderma spp.: An eco-friendly approach for disease management, Agriblossom, 2021;1(9): 3–14.

[14] Wang Z , Li Y, Zhuang L, Yue Y, Liu J, Zhang L, Gao Z, Wu Y, Gao W, Ding GC, Wang Q, A rhizosphere-derived consortium of Bacillus subtilis and Trichoderma harzianum suppresses common scab of potato and increases yield Computational and Structural Biotechnology Journal. 2019;17(1): 645–653.

[15] Purwantisari S, Parman S, Karnoto K, Budihardjo K. The growth and the production of potato plant supplemented by plant growth promoting rhizobacteria (PGPR). Journal of Physic: Conference Series. 2019;1217(1): 1-6.