Effects of Plant Growth-Promoting Rhizobacteria and Seedling Density on Morphologic Characteristics and Nutrient Content of Corn Fodder
Effects of Plant Growth-Promoting Rhizobacteria and Seedling Density on Morphologic Characteristics and Nutrient Content of Corn Fodder
Renny Fatmyah Utamy1, Ambo Ako1, Syahdar Baba2, Zulkharnaim1, Sri Gustina1, Laode Alhamd3, Indrawirawan2, Aulia Uswa Noor Khasanah1, Arif Rahman4,5, Siti Annisa Sukri5, Rara Mufliha5, Zyahrul Ramadan5 and Purnama Isti Khaerani6
ABSTRACT
This research assesses the impact of plant growth-promoting rhizobacteria and seedling density on morphology and nutritional quality of fodder (Maize or Corn). The research was arranged according to a randomized, complete factorial design. Factor A was PGPR levels (0, 5, 10, and 15 ml/l) expressed as P, hereafter and Factor B was the density (0.26, 0.33, 0.40, and 0.47 g/cm²) hereafter refers as D. Parameters observed in the research included germination percentage, plant height, fresh weight, dry weight, and proximate analysis. Results indicates that both level of P and D significantly influenced the measured parameters. Interaction of the factors P and D has a highly significant effects (p<0.01) on germination rate, plant height, fresh and dry weight. The combination of P at 15 ml/l with D 0.47 g/cm² showed the highest germination. Whereas, morphological traits like plant height, the optimal combination was associated to P1D2 with P 5 ml/l and D 0.33 g/cm². Similarly, fresh and dry weights indicated the best combination in P2D3, with PGPR at 10 ml/l and a seedling density of 0.40 g/cm². The optimal combination for proximate analysis was P2D2, with PGPR at 10 ml/l and a seedling density of 0.33 g/cm². Furthermore, a positive correlation (p<0.001) was observed between fresh and dry weights (Naturally because both are the same), as well as between neutral detergent fiber (NDF) and acid detergent fiber (ADF). In conclusion, the research highlights potential of integrating PGPR with strategic seedling density management to optimize corn as fodder growth and nutritional value, presenting a promising approach for future primary forage production.
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