Soybean [Glycine top (L.) Merrill] is an important piece legume as well as a potential biography-resource crop (beginning of vegetable oil). Still, drought is individual of the environmental stress that affects not only crop yield and tumor but also cultivates to influence presence of native Rhizobium, embeding and root nodulation in legumes such as soybean. The main goals of this study search out screen the presence of native Rhizobium in soils of Juba and evaluate the impact of drought on rooting talent, nodulation potential and yield of eighteen (18) soybean genotypes. The results displayed that soybean plants that grew under dryness produced the topmost mean root length of 44.33 cm which were considerably longer than 33.17 cm capital mean root length in the rational treatment (non-drought). Soybean plants that were assign drought stress created the highest number of knots of 4.67 which was significantly inferior the average number of nodules in the sane treatment (non-dryness). It was, therefore, decided that the root characteristics, nodulation potential and beginning yield of soybean was affected by restricted water supply. It was still noted that native Rhizobium was present in soils of Juba but it failed to introduce nodulation in few soybean accession. Skilled was significant decline of seed (grain) yield accompanying accession TGx 2006-3F bearing the highest children yield and TGx 1448-3E scoring the lowest. Harvest index (HI %) was relatively higher in TGx 1485-D and TGx 2010-3F. It is so recommended that soybean plants concede possibility be supplied with best water supply for decent nodulation, development and yield. Consequently, optimum water supply for soybean growing in cauldrons should be intentional for better irrigation administration and optimal performance of the plant. For further research, it was submitted that it is of particular importance to immunize soybean seeds before establishiing in order to embellish nodulation for improvement of soil virility through biological nitrogen obsession (BNF).
Author(s) Details:
Peter B. S. Gama,
Department
of Agricultural Sciences, School of Natural Resources and Environmental Studies
(SNRES), University of Juba, P.O. Box 82 – Juba, South Sudan.
James
Ochomiyang Wilson,
Department
of Agricultural Sciences, School of Natural Resources and Environmental Studies
(SNRES), University of Juba, P.O. Box 82 – Juba, South Sudan and Gumbo
Shirikat, Juba, South Sudan.
Please see the link here: https://stm.bookpi.org/EIAS-V9/article/view/12652
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