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CICIK SURIANI
Universitas Negeri Medan
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The Effect of Concentration and Application Interval of Plant Growth-Promoting Rhizobacteria (PGPR) from Thorny Bamboo Roots (Bambusa blumeana) on the Growth and Yield of Chili Pepper (Capsicum frutescens L.) Tamba, Lisna P.J.; Suriani, Cicik
Metamorfosa: Journal of Biological Sciences Vol. 12 No. 2 (2025)
Publisher : Program Magister Ilmu Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2025.v12.i02.p4

Abstract

The steady demand for chili pepper throughout the year encourages farmers to plant continuously without considering environmental factors, thereby reducing chili pepper production. This decline is caused by low soil fertility due to excessive use of chemical fertilizers. One environmentally friendly approach is the use of Plant Growth Promoting Rhizobacteria (PGPR) Thorny Bamboo Roots (Bambusa blumeana). This study aims to determine the effect of PGPR concentration and application interval, as well as their interaction, on the growth and yield of chili pepper plants. The study used a two-factor Randomized Block Design (RBD), namely concentration (K0: 0 ml/L, K1: 10 ml/L, K2: 20 ml/L, K3: 30 ml/L, K4: 40 ml/L) and time interval (I1: once every 7 days, I2: once every 14 days). The research data were analyzed using ANOVA and then continued with the BNT test. The results showed that the PGPR concentration had a significant effect on all parameters, namely plant height, number of leaves, stem diameter, number of flowers, number of fruits, and wet weight, while the time interval only had a significant effect on stem diameter, and the interaction between the two had no significant effect on all treatments. A concentration of 40 ml/L (K4) was the best concentration, with an average plant height of 63.66 cm, number of leaves of 23.66, stem diameter of 12.86 mm, number of flowers of 16.66, number of fruits of 17.16, and wet weight of 20.73 grams. The 14-day interval (I2) was the optimal interval for stem diameter, with an average of 4.58 mm. Keyword: Thorny bamboo, chili pepper, time interval, concentration, PGPR
Co-Authors . SUHARSONO A Aryeni A. Hadian Pratama Hamzah A. Hadian Pratama Hamzah Abdul Hakim Daulae Adel Dwi Nita Silalahi Afni Nurjanah Agita Setya Ningrum Aisyah Amira Nasution Alvina Oktavia Alya Meuthya Reayani Padang Amelia Patra Harahap Ananda Adilla Anastasia Sinaga Anisah Huzaifah Anisali Panjaitan Annisa Ridha Riyani Aprilia Shofia Isyfi Armaniar, Armaniar Ashar Hasairin Asih Maulida Hasni Asri, Elita Aswarina Nasution Ayu Putri Ningsih Azzahra, Yolanda Putri Bertha Angelina sidauruk Br Bangun, Edmy Febriani Brema Pratama Chairani Fadilla Chyntia Dwi Camelia Cindi Claudia Sipayung Cindi Santika Ramadina Daulae, Abdul Hakim Daulay, Abdul Hakim Desi Novianty Br Ginting Desi Sakinah Tinendung Didi Febrian Donna Ariesta Sinaga Elis Putri Aldina Harahap Elista Sianturi Elza Amanda Emia Sapna Marsyalina Br Barus Eni Susanti Ermy Veronica Sitompul Ester Tania Monita Silalahi Fadillah, Yulia Rahmah Fauziyah Harahap Fauziyah Harahap Fauziyah Harahap Findi Septiani Findi Septiani Fitri Afifah Nasution Geovany Panjaitan Grace Violencia Gusni Katrina Zalukhu Hadinata, Aristo HANDAYANI, DINA Harahap, Salamah Hasanah, Dwi Hasratuddin . Helga Irene Purba Imelda Sri Ulina Br Purba Irene Putri Dinanti Manurung Judika Agnesia Purba Juli Nola Olivia Sinaga Kairani, Anita Lia Rahmawati Lina Warlina Louisa Assian Sinaga MANSUR AS Maylani Magdalena Br Malau Mufti Sudibyo, Mufti Muhammad Fadhal Faiq Muhammad Fahrizal, Muhammad Nadhilla, Annisa Nadia Mubarokah Nadilla Putri Nasution, Ahmad Luthfi Abdillah Nasution, Aswarina Nur Alifah Fitriyana Siallagan Nurdyana Nasution Nurhasanah Nurhasanah Nurhasanah Nurhasanah Nurlela Br Ginting Nurlia Zahara Nursamsu Nursamsu Nurul Aini Nurul Ummi Lubis Nusyirwan Nusyirwan Panggabean, Nurul Huda Panggabean, Syakilah Kurnia Fahmi Parasetya, Eko Puji Prastowo Puspita, Wina Dyah Putri Agresia Sinaga Putri Diana Rafi Alwaliyyu Rafiqah Yusna Siregar Rahel Octavia Siaahan Ratih Indah Sundari Rehlitna Fransiska Sitepu Rini Syahrayni Hasibuan Rizki Fatahillah Hutasuhut Rizki Jumiati Hasibuan Roedhy Poerwanto Rosa Sari Amalia Nasution Roulina Siburian Sakinah Warohmah Samsul Kamal Sanimah Sari, Elvira Nanda Sembiring, Gres Anjelia Serina Fitri Ayu Limbong Sihombing, Josephine Gloria Margareth Simanjuntak, Maretta Indah Sari Sinthia Brigyta Pangerapan Sinthya Syahputri Sinuraya, Kenari Br Siti Rahma Sari siti rahmah Sitompul, Rahmadi Sitti Subaedah Sohifah Sohifah Sohifah Sopi Yanti Sri Dewi Nainggolan Sri Harijati Sri Harijati Sri Wahyuni Siregar Stevani Azharia Br Ginting Subhan Abadi Nasution Suci Rahayu Syafitri, Ade Syahmi Edi Syahmi Edi Syarifuddin Syarifuddin Tamba, Lisna P.J. Tawaria Anasari Barus Tini Rosalia Gultom, Tini Rosalia Togi Romaito Siagian Umayra Umayra Vanesia Syhana EZ Sinaga Wasis Wuyung Wisnu Brata Wasis Wuyung Wisnu Brata Wina Dyah Puspita Sari, Wina Dyah Yohana L Purba Yolanda Dealova Sihite Yunda Safitri Zahara Ain Nur Syahru ⁠Intan Dwita Syahfitri