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Effect of Different Levels of Rhizobium Inoculation on the Early Growth of Selected Soybean (Glycine max L.) Varieties

100%

Isah F. A., Hayatu M.

World News of Natural Sciences

2025

vol. 63

issue 2

248-258

Soya bean is one of the most important crops in the world and presents great versatility. This study was conducted to investigate the effect of rhizobium inoculations at different levels on the early growth of two Soybean varieties (Glycine max L.). The study was conducted at the Botanic Nursery in the Department of Plant Biology, Bayero University, Kano. TGX 1835-10E and TGX 1834-5E Soybean varieties were tested. The experiment was laid out in a randomized complete block design (RCBD) with three replications. Different levels of rhizobia inoculation were prepared at 0 g/kg, 2 g/kg, 4 g/kg, and 6 g/kg. Data were collected on number of leaves, plant height, leaf area and number of nodules at 14, 28 and 42 days after planting (DAP). The data were analyzed using a two-way analysis of variance at a 5% significance level. The variety TGX 1834-5E recorded the highest number of nodules (12.25), while the variety TGX 1835-10E recorded the highest number of leaves (3.33, 7.92, and 10.92 at 14,28 and 42 DAP), plant height (5.80 cm, 11.71 cm, and 14.48 cm at 14,28 and 42 DAP), and leaf area (12.30 mm, 18.14 mm, and 30.40 mm at 14,28 and 42 DAP). A higher inoculation level of rhizobia (6 g/kg) was found to increase most of the growth parameters assessed, particularly the number of nodules. Inoculation with rhizobia is effective in improving the growth and nodulation of Soybean varieties.

Effects of Bambara groundnut [Vigna subterranea (L.) Verdc.] interaction with Rhizobium spp. for viable yield crop advancement

75%

Adedayo O. A., Aremu B. R., Babalola O.

World News of Natural Sciences

2025

vol. 63

issue 2

310-330

Viable yield crop remains a preference towards avoiding food insecurity in any country, yet, the fertility of most of the soils in Africa is low, which is the main reason why sustainability does not receive enough support by any means. Various agricultural systems have been carried out to solve the challenges, but many restrictions have been recorded, thereby resulting to a constant little or no crop of local basic food crops in several countries in Africa. Scientists and farmers have become interested in the symbiotic relationships between “Legumes” and “Rhizobia” because of their effectiveness in nitrogen fixation as a true alternative. The blend of Nitrogen Fixing Legumes (NFL) with novel essential reverence yields among small-holder farming structures is possible to improve the fertility of soil. The seed of legumes, in particular, Bambara groundnut (i.e. African Bambara groundnut) creates nitrogen fixing symbiotic interaction together with the bacteria of root nodule collectively termed “Rhizobia” in such a manner that sufficient nitrogen are released for legume and diverse yields during inter-crop or crop rotation. Through this method, it is expected to be considered as a food crop that is necessary for food security thereby giving serious considerations on its usefulness and healthy benefits. As a discourse of significance, it is expected to be referred as a cash crop, as well as an essential preference for promoting the soil's nitrogen fertility.

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2 World News of Natural Sciences

2 2025

1 Adedayo O. A.

1 Aremu B. R.

1 Babalola O.

1 Hayatu M.

1 Isah F. A.

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Effect of Different Levels of Rhizobium Inoculation on the Early Growth of Selected Soybean (Glycine max L.) Varieties

Effects of Bambara groundnut [Vigna subterranea (L.) Verdc.] interaction with Rhizobium spp. for viable yield crop advancement