Screening coalmon bean [Phaseolus vulgaris l. savi] genotypes adapted to low soil phosphorus
| dc.contributor.author | Mourice, Sixbert Kajumula | |
| dc.date.accessioned | 2023-08-09T08:46:14Z | |
| dc.date.available | 2023-08-09T08:46:14Z | |
| dc.date.issued | 2006 | |
| dc.description | Dissertation | en_US |
| dc.description.abstract | Two screen house pot experiments were conducted to identify bean genotypes, diverse in their places of origin and seed size, based on vegetative growth and P uptake and final grain yield for adaptation to low phosphorus. Three phosphorus levels; low P (0 added P), medium P (40 mg P/kg soil) and high P (160 mg P/kg soil) were main plots whereas 27 genotypes were subplots, in a split-plot laid out in a completely randomised design. The test soil was very fine, kaolinitic Kanhaplic I-Iaplustult. Out of 27, seven bean genotypes were further evaluated for yield components and final grain yield at low P in the same soil. Shoot biomass, root biomass, shoot P concentration and P uptake increased with increased P supply and genotypic variability in these parameters was significant (P < 0.05). Genotypes G92, PRETO 143, MILENIO, VEF 88(40), BAT 477, A785, ANT 22, DOR 714 and AFR 708 performed better than other genotypes at low P level; also their response to P addition was significant. It was revealed that P was a major limiting factor to bean growth in the soil used for the experiment. Number of pods/plant increased significantly with increase in P levels and was correlated with grain yield at low P and adequate P. P treatments did not affect the seed size of genotypes. Genotypes BAT 477, MILENIO, DOR 714 and A785 had significantly higher grain yield than other genotypes at low P and may be favoured in the selection process. Although genotypes produced some grain yield at low P, soil fertility improvement by applying medium P or appreciable amounts of organic manure may improve yields and increase productivity per unit area. | en_US |
| dc.description.sponsorship | Bean Project | en_US |
| dc.identifier.uri | http://www.suaire.sua.ac.tz/handle/123456789/5584 | |
| dc.language.iso | en | en_US |
| dc.publisher | Sokoine University of Agriculture | en_US |
| dc.subject | Screening common bean | en_US |
| dc.subject | Bean genotypes | en_US |
| dc.subject | Soil phosphorus | en_US |
| dc.subject | Soil fertility | en_US |
| dc.subject | Bean growth | en_US |
| dc.subject | Grain yield | en_US |
| dc.title | Screening coalmon bean [Phaseolus vulgaris l. savi] genotypes adapted to low soil phosphorus | en_US |
| dc.type | Thesis | en_US |