Objectives: a study on ground both ruderal and representative of the forested savannah completely degraded the city of Lubumbashi on what five varieties of common beans were exploited. Methodology and results: The test has been installed following a complement device randomized with three replicates of five varieties: SER48, BCB 585, SCR14, SER15, and SCR13 .for their assessment against their adaptation to acid soil, the following were observed: days of flowering, days to maturity, vegetative Adaptation, reproductive Adaptation, Infestation of disease, performance and impact to the acidified. The obtained results indicate that there is a difference of effect of adaptation from the varieties as well, so SCR 13, SCR 14, SER 48 and BCB 585 varieties introduced a number high force of adaptation (Group A); and the SER 18 variety has a low number of effect of adaptation (Group B). for the number of pods to reveal a significant difference compared to the varieties; Thus the SER 48 variety has a high number of pods (Group A) however the BCB 585 and SCR 14 varieties give a small number of pods (Group B) and finally the varieties SCR 13 and SCR 15 have given an intermediate number of pods) Group A B) and yields between SCR 13 with 701, 4 kg /Ha and SCR 14 with 575, 8 kg/Ha.

The main objective of this study was to estimate the above-ground biomass in the Miombo forest of the Haut Katanga ecological system in the Democratic Republic of Congo; the case of the “Notre Dame” monastery’s forest of Kiswishi. So, the allometric method was used that consist in the proportionality relation between the relative growth and the mensurations. The evaluated parameters were the terrier area, the above ground biomass according to the Brown’s model (1997) and the estimation of the carbon dioxide emissions for the treeless superficies. On the two selected plots with the medium density of 562 trees per hectare, it was estimated, according to the diameter at the chest height, the above ground biomass of 168.8 metric ton per hectare; the terrier area of 18.86 m2/ha and 618.95 metric ton per hectare of carbon dioxide that would be sent out in the atmosphere if all trees of the ground were cut down and burnt. In conclusion, the Miombo forest of Kiswishi accuse low biomass seeing that it is mainly represented by trees with à diameter at the chest height less than 30 cm.

A study was conducted to evaluate the performance of five varieties of Bean common biofortifie implementation competition under treatment of growth regulators: Allwin Wonder and Allwin top, from February until May 2016. Our experience took place in the experimental field at the Institute superior teaching of Lubumbashi, located on the avenue of the revolution to the Baudouin area. As part of this work, a randomized complete block experimental device has been used. Of our five varieties use, the K132 variety was more precocious to flowering MAHARAGI soybeans takes more time before maturity, however CODMLB007, LSA144 and ZKA93-M95 present a similar result compared to the days of maturation. The CODMLB007 was most attacked by aphids; the LSA144 and MAHARAGI soybeans were less contested and the K132 and ZKA93-M95 are intermediate compared to the impact of aphids attack. For all parameters observed: (days to flowering, days to maturity, reproductive Adaptation (in charge of the pod), vegetative Adaptation (force), attack by insects, performance level), on the threshold of 5%. When it comes to attacks of aphids; the LSA144 MAHARAGI soy have been resistant, have given a better performance and are best suited in the edapho-climate conditions of Lubumbashi.