Phosphorus Use Efficiency of Common Bean Cultivars in Ethiopia. Issue 11 (17th June 2018)

• Record Type: Journal Article
• Authors: Shanka, Dereje; Dechassa, Nigussie; Gebeyehu, Setegn; Elias, Eyasu
• Is Part Of: Communications in soil science and plant analysis. Volume 49:Issue 11(2018)
• Page Start: 1302
• Page End: 1313
• Publication Date: 2018-06-17
• Subjects: Grain yield efficiency index -- Phaseolus vulgaris L. -- phosphorus deficiency -- root; Soil science -- Periodicals; Plants -- Chemical analysis -- Periodicals; Agricultural chemistry -- Periodicals; 631.405
• DOI: 10.1080/00103624.2018.1457158
• Languages: English
• ISSNs: 0010-3624

Abstract

ABSTRACT: Phosphorus (P) deficiency in the soil is one of the major factors limiting common bean production in Ethiopia. A pot experiment was conducted in a glasshouse at Hawassa University in southern Ethiopia to evaluate twelve common bean cultivars for P use efficiency at three phosphorus rates (0, 120, and 240 kg P2 O5 ha −1 ). The results of the study revealed that the interaction effect of cultivar and P rates significantly (P < 0.01) influenced grain yield efficiency index (GYEI), grain yield and yield attributing traits, leaf P concentration, root length, diameter and surface area. Grain yield efficiency index at low and medium phosphorus rates indicated that Red-Wolaita, Dinkinesh, Tabour, Nasir and Haramaya are P-efficient, whereas Chore was found to be P-inefficient. These genotypic variations could be exploited for sustainable production of the crop by fitting suitable varieties to soils with variable P availability. Thus, the P-efficient cultivars indicated above could be recommended for cultivation by smallholder farmers in soil with low P availability that is dominant in the study area.