The Potential of Deleterious rhizobacteria to Control Primary Weed Echinochloa sp. on Rice

Mohammad Hoesain (Department of Plant Protection, Faculty of Agriculture, University of Jember, Kalimantan Street No. 37 Tegalboto, 68121, Jember, East Java Province, Indonesia)
Rachmi Masnilah (Department of Plant Protection, Faculty of Agriculture, University of Jember, Kalimantan Street No. 37 Tegalboto, 68121, Jember, East Java Province, Indonesia)
Suhartiningsih Dwi Nurchayanti (Department of Plant Protection, Faculty of Agriculture, University of Jember, Kalimantan Street No. 37 Tegalboto, 68121, Jember, East Java Province, Indonesia)
Ankardiansyah Pandu Pradana (Department of Plant Protection, Faculty of Agriculture, University of Jember, Kalimantan Street No. 37 Tegalboto, 68121, Jember, East Java Province, Indonesia)
Fariz Kustiawan Alfarisy (Department of Plant Protection, Faculty of Agriculture, University of Jember, Kalimantan Street No. 37 Tegalboto, 68121, Jember, East Java Province, Indonesia)
Dwi Tirta Sari (Department of Plant Protection, Faculty of Agriculture, University of Jember, Kalimantan Street No. 37 Tegalboto, 68121, Jember, East Java Province, Indonesia)
Farchan Mushal Al Ramadhan (Department of Agrotechnology, Faculty of Agriculture, University of Pekalongan, Sriwijaya Street No. 3 Bendan, 51119, Pekalongan, Central Java Province, Indonesia)
Rismayani (Research Center for Estate Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency, Bogor, West Java, Indonesia, Cibinong, 16911, Bogor, Indonesia)
Sri Ita Tarigan (Department of Integrated Plant Protection, Institute of Plant Protection, Hungarian University of Agriculture and Life Science (MATE), Pater Karoly utca, Godollo, Hungary)

Biosaintifika: Journal of Biology & Biology Education
Vol. 16 No. 2 (2024): August 2024

Deleterious rhizobacteria (DRB) is one of the rhizobacteria that can be used as a bioherbicide and can stimulate plant growth. The objectives that can be obtained from this study are to determine the potential of DRB on the growth of weeds Echinochloa crusgalli and Echinochloa colona on rice. Variables observed in this study were identification of secondary metabolites, measurement of weed sprouts, percentage effectiveness of bacterial isolates against weed seeds, normal sprouts, abnormal sprouts, fresh seeds that did not grow and dead seeds. The aim of this study is to explore biological agents that can be used to control the main weeds of rice crops. This candidate could be a recommendation for environmentally friendly controls. Exploration of the DRB group was obtained by collecting soil samples around the roots of rice crops. Then isolate it, identify as morphologically and physiologically, and test it in vitro studies. The results showed that DRB had the potential to control weed growth and could stimulate the growth of rice. The application of PFA and PFB isolates had a significant effect on inhibiting the length of weed roots and buds, the average percentage of control effectiveness > 80-90%. Novelty in this study could be found as candidate groups of DRB bacteria with specific locations to control the weed Echinochloa sp. on rice crops. For society, this research could be an alternative to reduce dependence on synthetic herbicides . DRB has the potential to be formulated into a bioherbicide  to control weeds.