Influence of Cross-Inoculation on Groundnut and Bambara Groundnut-<i>Rhizobium</i>Symbiosis: Contribution to Plant Growth and Yield in the Field at Sarh (Chad) and Ngaoundere (Cameroon)

• 作者: Albert Ngakou Doloum Gomoung Mbaiguinam Mbailao Steve Takoukam Toukam
• 来源期刊: 美国植物学期刊(英文)
• 学科: 医学
• 关键词: Bambara GROUNDNUT GROUNDNUT Growth RHIZOBIA Cross-Inoculation Yield CHAD Cameroon
• 年，卷（期）: 2017,（8）
• 页码范围: 1953-1966
• 页数: 14页
• 分类号: R73

摘要

In the context of sustainable research aiming at improving seed yield and maintaining soil fertility, a study on cross-inoculation of groundnut (Arachis hypogaea L.) and Bambara groundnut (Vigna subterranean (L.) Verd.) with rhizobia strains from four crop legumes was carried out at Sarh (Chad) and Ngaoundere (Cameroon). The experiment was conducted in each site following a randomized complete block design with 6 treatments known as the control, and 5 cross-inoculation formulations (RA, RN, RS, RV and MR), each of which was replicated thrice. Results obtained show that cross-inoculation contributed to the improvement of growth (plant sizes and biomasses) of the two crop legumes, as well as their seed yield at harvest. The enhanced yield expressed in kg/ha varied from 9.83% to 63.73% for groundnut and 72.71% for Bambara groundnut. These findings suggest that groundnut and Bambara groundnut do have a symbiotic affinity with rhizobia from other crop legumes. Whereas Groundnut, Cowpea, Soybean, Bambara groundnut rhizobia (GR, CR, SR, BR) alone, and the fourth in a mixture (RM) could be used to help improving groundnut seed yields;this mixture would not be indicated for intensive cultivation of Bambara groundnut later.