Potential of Rhizobium to Promote Plant Growth for the Development of Albizia procera Seedling

Author: Arti Ghabru, Neerja Rana and Meenakshi

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Abstract

Nitrogen and organic matter content in forest soils have decreased as a result of intensive harvesting of forest resources. One of the essential components for the growth and development of plants is nitrogen. Nitrogen is a growth-limiting nutrient in terrestrial and aquatic ecosystems despite its abundance in the atmosphere because, with the exception of nitrogen-fixing bacteria, it is inert and worthless in its gaseous state. Numerous tree species have been investigated to determine how inorganic fertilizers affect the girth, height, and biomass increment of forest tree species. However, the rising costs and unbalanced usage of these chemical fertilizers have an adverse effect on the environment. Species of trees that fix atmospheric nitrogen through their root nodules have been considered over time because of this potential. There is evidence that nodulating plants can improve soil fertility. An affordable and practical way to lessen the need for nitrogen fertilizers and restore damaged ecosystems is through biological nitrogen fixation. Forests are essential for any country's ecological stability and economic growth. Research on the population structure of forest trees under various environmental conditions have shown that genetic and physiographic variances are related to seed location or source. The economical and environmentally beneficial method of biological nitrogen fixation (BNF) involves leguminous plants and nitrogen-fixing microorganisms working together to increase soil nitrogen availability. Since ancient times, symbiotic bacteria found in legumes have been known to improve the soil's nutrient content. In the Microbiology Laboratory of the Department of Basic Sciences, the current study is based on "Improvement of Albizia procera Seedling utilising Rhizobium Inoculation", was carried out. Out of ten seed sources, the study found that the Baddi seed source in Himachal Pradesh and the FRI, Dehradun seed in Uttarakhand were the best. The Albizia procera nodules yielded a total of 66 isolates, including 28 from Uttarakhand and 38 from Himachal Pradesh. Rhizobium spp. has been identified in 35 of 66 isolates. The shoot biomass, root biomass, and nodulation status considerably increased over the uninoculated control after the two isolates, BA2 and FA6, were chosen and used as biofertilizer.

Keywords

Albizia procera, Leghaemoglobin, seedling parameters, Nitrogen fixation potential, nodulation, biofertilizers, rhizobium, plant growth parameters

Conclusion

It is important to use different seed pre-treatments and locations to produce quality seedlings with the lowest costs and labor. For tree improvement programs quality seed source play important role. The application of rhizobial isolates BA2+ and FA6+, along with eco-friendly methods for producing quality seedlings of Albizia procera, is advised based on the aforementioned study. These methods could significantly reduce the dependence on chemical fertilizers and play a significant role in afforestation cultural practices and programmes.

References

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How to cite this article

Arti Ghabru, Neerja Rana and Meenakshi (2023). Potential of Rhizobium to Promote Plant Growth for the Development of Albizia procera Seedling. Biological Forum – An International Journal, 15(4): 427-433.