References of "Baudoin, Jean-Pierre"
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See detailGestion durable de la fertilité du sol dans un système agro-pastoral à Baraka-Fizi, au Sud-Kivu
Mto, W. W.; Mergeai, Guy ULg; Malumba Kamba, Paul ULg et al

in Malumba Kamba, Paul (Ed.) Gestion durable des agro-systèmes en milieu tropical humide (2013)

L'agriculture itinérante sur abattis-brûlis est identifiée parmi les principales menaces aux forêts et à la biodiversité de la localité de Baraka-Fizi en particulier et de la République Démocratique du ... [more ▼]

L'agriculture itinérante sur abattis-brûlis est identifiée parmi les principales menaces aux forêts et à la biodiversité de la localité de Baraka-Fizi en particulier et de la République Démocratique du Congo en général. Cet article propose un modèle agroforestier permettant la fixation des champs et la sédentarisation des élevages et conduisant à des utilisations rationnelles des terres. L'usage des émondes d'engrais verts comme fertilisants ; l'optimisation de leurs doses et modes d'application dans différentes associations de cultures ; les assolements collectifs et l'intégration de l'élevage bovin dans le système de production sont les principales directives de ce modèle. Une gestion optimale et durable de la fertilité des sols et l'amélioration de l'économie paysanne peuvent être attendues grâce aux effets synergiques entre les productions agroforestières (engrais verts), vivrières, fourragères et bovines. [less ▲]

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See detailTest modeling of the growth of self-fertilized embryos of Phaseolus vulgaris L. and Phaseolus coccineus L. genotypes
Nguema Ndoutoumou, Pamphile; Boussiengui Boussiengui, Gino; Ngakou, Albert et al

in African Journal of Plant Science (2013), 7(8), 310-316

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See detailIn vitro micropropagation of Jatropha curcas L. from bud aggregates
Medza Mve, Samson Daudet ULg; Mergeai, Guy ULg; Druart, Phillipe et al

in Journal of Technology Innovations in Renewable Energy (2013), 2

Entire plants were regenerated from nodes explants of Jatropha curcas L. following a procedure of bud aggregate induction on MS (Murashige and Skoog) medium supplemented with 25 mg.l-1 citric acid, 12.2 ... [more ▼]

Entire plants were regenerated from nodes explants of Jatropha curcas L. following a procedure of bud aggregate induction on MS (Murashige and Skoog) medium supplemented with 25 mg.l-1 citric acid, 12.2 mg.l-1 adenine sulfate, 15 mg.l-1 L-arginine, 2.46 µM IBA (indole-3-butyric acid), 30 g.l-1 sucrose and 7 g.l-1 of agar, and enriched with different balances of BA (benzyladenine) and L glutamine. The histological studies performed on aggregates showed that the buds result from both the development of axillary buds and adventitious budding starting from underlying tissues of the explant. The culture medium containing 6.65 µM BA and 25 mg.l 1 L-glutamine gave the best results with an average of 64 buds per aggregate after three weeks for all accessions tested. The buds developed into shoots when placed in a MS medium supplemented with 2.21 µM BA, 5.70 µM IAA (indole-3-acetic acid) and 15 mg.l-1 L arginine. These shoots were isolated and then rooted in MS containing 2.46 µM of IBA, 2% sucrose and 0.7% agar. The entire process took 13 weeks with a 98% survival rate in terms of plantlets acclimatization. We obtained a multiplication rate of 13 buds per explant and per subculture which is the double of those obtained in other recent works based on the micropropagation of J. curcas from node explants. This protocol is economically more profitable. [less ▲]

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See detailEffects of fruit maturity on oxidative stability of Lagenaria siceraria (Molina) standl. seed oil extracted with hexane
Loukou, A.L.; Lognay, Georges ULg; Baudoin, Jean-Pierre ULg et al

in Journal of Food Biochemistry (2013), 37(4), 475-484

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See detailAmélioration des agrosystèmes intégrant le haricot commun (Phaseolus vulgaris L.) au Sud-Kivu montagneux
Civava, M.R.; Malice, Marie; Baudoin, Jean-Pierre ULg

in Malumba Kamba, Paul (Ed.) Gestion durable des agro-systèmes en milieu tropical humide (2013)

Le haricot commun, Phaseolus vulgaris L., est l'une des principales cultures de l'est de la République Démocratique du Congo. Au Sud Kivu montagneux, il est principalement produit en système d'association ... [more ▼]

Le haricot commun, Phaseolus vulgaris L., est l'une des principales cultures de l'est de la République Démocratique du Congo. Au Sud Kivu montagneux, il est principalement produit en système d'association culturale, intégrant l'agriculture et de l'élevage, sur des terrains en pente avec des pratiques culturales inappropriées et une gestion calamiteuse de l'érosion, de la fertilité des sols. Comme modalités palliatives à la faible productivité de ce système, le bon choix de la période de semis, l'exploitation des terrains avec des cultures en couloir en intégrant des haies antiérosives de Leucaena et de Tripsacum en courbe de niveau et l'intégration de l'élevage de caprin dans le système, sont quelques pistes proposées qui permettraient de résoudre ce problème ainsi que celui de la disponibilité des terres qui se posent avec acuité dans le milieu. Ce système est présumé rentable car les déchets d'une activité sont utilisés comme intrants pour une autre au sein de la même exploitation. [less ▲]

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See detailDescription of Phaseolus vulgaris L. aborting embryos from ethyl methanesulfonate (EMS) mutagenized plants
Silué, Souleymane; Diarrasouba, Nafan; Fofana, Inza Jesus et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17(4), 563-571

The aim of this study was to describe the embryos abortion process and the inheritance of the embryos abortion trait in Phaseolus vulgaris plants deficient in seed development. These plants were isolated ... [more ▼]

The aim of this study was to describe the embryos abortion process and the inheritance of the embryos abortion trait in Phaseolus vulgaris plants deficient in seed development. These plants were isolated within the second generation of an ethyl methanesulfonate (EMS) TILLING population of P. vulgaris cv. 'BAT93'. Mutant embryos show abnormalities mainly in suspensors, shoot apical meristem (SAM) and cotylédons from the globular to the cotyledon stages and abort before maturity compared to those observed in wild-types samples. Mutant embryos show also hyperhydricity and contain low amount of chlorophyll. Genetic analyses of F1, F2 and F3 populations from the crosses carried out between the mutagenized plants with aborting embryos and the wild-type plants indicated that the embryo abortion phenotype is maternally inherited and controlled by a single recessive gene. These Phaseolus mutant plants with aborting embryos constitute a valuable material for plant embryogenesis studies. [less ▲]

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See detailMedium effects on micropropagation and genetic stability of Citrullus lanatus oleaginous type
Gnamien, Yah Gwladys; Zoro Bi, Irié Arsène; Kouadio, Yatty Justin et al

in Agricultural Sciences (2013), 04(07), 32-44

To regenerate adventitious shoots from the cotyledon proximal parts of Citrullus lanatus (Thunb.) Matsum. and Nakai ssp. mucosospermus (Fursa) oleaginous type, different concentrations of MS mineral ... [more ▼]

To regenerate adventitious shoots from the cotyledon proximal parts of Citrullus lanatus (Thunb.) Matsum. and Nakai ssp. mucosospermus (Fursa) oleaginous type, different concentrations of MS mineral elements, sucrose, 6-benzylaminopurine (BAP) and agar were tested. Shoot induction proved to depend on the interaction between levels of sucrose, BAP and MS mineral elements in the medium. The medium containing 3/2 strength of MS mineral elements, 35 g/l sucrose and 1 mg/l BAP solidified with 6 g/l agar allowed the production of numerous shoots without a callus phase. After 3 weeks of culture, 76.7% of the cotyledon proximal parts induced shoots with an average of 12.26 shoots per explant and a mean shoot length of 17.13 mm. The induced shoots were directly rooted and thus complete plants ready for acclimatization were obtained using a two steps procedure. Depending on the genotype, the shoot induction from cotyledon proximal parts ranged from 54% to 96%. Rooted plantlets were acclimatized and transferred to field, where they grew well, developed flowers and fruits like seeded plants. The assessment of the genetic stability of the in-vitro-regenerated plantlets by means of an Amplified Fragment Length Polymorphism (AFLP) analysis with the combination of 5 primers revealed no differences between regenerated plantlets and mother plants. [less ▲]

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See detailEtude histologique des embryons avortés lors des croisements entre Phaseolus vulgaris L. et Phaseolus coccineus L.
Nguema Ndoutoumou, Pamphile; Toussaint, André ULg; Baudoin, Jean-Pierre ULg

in International Journal of Biological and Chemical Sciences (2013)

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See detailStudy of agronomic constraints to the dissemination of the cultivation of Jatropha curcas L. in Senegal
Terren, Marieke ULg; Saverys, S.; Jacquet de Haveskercke et al

Poster (2012)

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See detailSauvetage d'embryons chez les légumineuses alimentaires en générale et dans le genre Phaseolus en particulier (synthèse bibliographique)
Barikissou, Eugénie; Baudoin, Jean-Pierre ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2012), 16(2), 203-215

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See detailPythium root rot of common bean : biology and control methods. A review
Nzungize, J.R.; Lyumugabe, F.; Busogoro, J.-P. et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2012), 16(3), 405-413

Pythium root rot constitutes a highly damaging constraint on the common bean, Phaseolus vulgaris L., grown in several areas of Eastern and Central Africa. Here, this food legume is cultivated intensively ... [more ▼]

Pythium root rot constitutes a highly damaging constraint on the common bean, Phaseolus vulgaris L., grown in several areas of Eastern and Central Africa. Here, this food legume is cultivated intensively under poor conditions of crop rotation due to the exiguity of the land in the region. Yield losses of up to 70 % in traditional local bean cultivars have been reported in Kenya and Rwanda. In this study, a detailed analysis of the biology and diversity of the Pythium genus was carried out in order to understand the mechanisms leading to the development of the disease. Various control methods for reducing the damage provoked by this disease were analyzed. [less ▲]

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See detailEffect of fruit age, pre-storage and seed fermentation durations on seed germination and seedling vigor in Lagenaria siceraria
Yao, Koffi Bertin; Konan, Amenan Jacky; Koffi, Kouamé Kévin et al

in Journal of Applied Biosciences (2012), (49), 3339-3351

Objectives : the study was conducted to determine the optimum age of the fruit at harvest and to evaluate the effect of pre-storage and fermentation on the seeds'agronomic performance of oleaginous ... [more ▼]

Objectives : the study was conducted to determine the optimum age of the fruit at harvest and to evaluate the effect of pre-storage and fermentation on the seeds'agronomic performance of oleaginous Lagenaria siceraria. Methodology and results : Fruit of the "round-fruited" and "blocky-fruited", two cultivars of the species, were harvested at 3 different ages (30, 40 and 50 days after anthesis (DAA)). These fruits were pre-stored during 0,30 and 60 days after harvest (DAH), and then their seeds were fermented for 0,5 and 10 days. Seed viability (germination percentage and germination speed index) and seedlings vigor (emergence percentage, emergence speed index, seedling shoot length and seedling dry weight) were significantly (P< 0.001) influenced by each of the three factors. Following the positive interaction of these factors, the best viability and the most vigorous seedlings were obtained with seeds from fruits tardily harvested (50 DAA), pre-stored for a long time (60 DAH) and longer fermented (10 days). The simultaneous variation of the fruit wet weight and the seed color, dry weight and moisture content with their viability and the seedlings vigor indicates that these four parameters can be used as indicators of both cultivars maturity. Conclusions and application of findings : The results suggest that in deaginous L siceraria, fruits must be harvested 50 DAA, pre-stored up to 60 DPA. Good agronomic quality seeds must have yellow-orange color and be fermented up to 10 days. [less ▲]

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See detailAlien chromosome transmission and somatic elimination in monosomic addition lines of Gossypium australe F. Muell in G. hirsutum L
Sarr, Djibril; Lacape, Jean-Marc; Jacquemin, Jean-Marie et al

in Euphytica : International Journal of Plant Breeding (2012), 183

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See detailEffect of harvest time on seed oil and protein contents and compositions in the oleaginous gourd Lagenaria siceria (Molina) Standl
Loukou, Ahou; Lognay, Georges ULg; Barthelemy, Jean-Paul ULg et al

in Journal of the Science of Food and Agriculture (2011), 91(11), 2073-2080

BACKGROUND: The stage of fruit ripeness at the time of harvest determines the final quality of ripe fruit. In this study, changes in the chemical composition of seed kernels from the oleaginous gourd ... [more ▼]

BACKGROUND: The stage of fruit ripeness at the time of harvest determines the final quality of ripe fruit. In this study, changes in the chemical composition of seed kernels from the oleaginous gourd Lagenaria siceraria (Molina) Standl. during maturation were evaluated to determine the best time to harvest the berries. Two cultivars (round and oval berry) were studied at three maturation stages (30 and 50 days after fruit set (DAFS) and complete plant whiteness (CPW)). [less ▲]

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See detailCulture in vitro de Jatropha curcas L.
Medza Mve, Samson Daudet ULg; Mergeai, Guy ULg; Baudoin, Jean-Pierre ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2011), 15(4), 567-574

The extension of Jatropha curcas L. cultivation as a biofuel feedstock species requires the distribution of a very large number of plants to the producers in a very short period of time. These plants have ... [more ▼]

The extension of Jatropha curcas L. cultivation as a biofuel feedstock species requires the distribution of a very large number of plants to the producers in a very short period of time. These plants have to be able to give a high oil yield and be morphologically and phenotypically homogeneous to facilitate cultural operations. If high oil content can be obtained by varietal selection, the achievement of homogeneous material passes by the in vitro propagation. Various methods of mass production of plant material by axenic culture have been published. This study reviews the protocols published for in vitro propagation of J. curcas and discusses their applicability to an industrial scale. [less ▲]

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See detailIsolation of five new monosomic alien addition lines of Gossypium australe F. Muell in G. hirsutum L. by SSR and GISH analyses
Sarr, D.; Lacape, J.-M.; Rodier-Goud, M. et al

in Plant Breeding (2011), 130

Gossypium australe F. Muell (2n + 2x = 26) is a wild perennial species possessing agronomic useful traits that would be interesting to introgress into G. hirsutum L. (2n = 4x = 52), the main cultivated ... [more ▼]

Gossypium australe F. Muell (2n + 2x = 26) is a wild perennial species possessing agronomic useful traits that would be interesting to introgress into G. hirsutum L. (2n = 4x = 52), the main cultivated cotton species. To isolate monosomic alien addition lines (MAALs) of G. australe in G. hirsutum, the [2(G. hirsutum X G. australe) X G. hirsutum] pentaploid (2n = 5x = 65) was backcrossed as male parent to G. hirsutum. Analysis of 42 BC1 plants and seven alien addition lines, already available, with 150 SSR markers developed from G. hirsutum revealed a cross-species amplification rate of 100% and a polymorphism rate of 56%. Eighty polymorphic SSR markers generated 87 G. australe-specific loci that have been assigned by a hierarchical cluster analysis to 13 linkage groups corresponding to the 13 chromosomes of G. australe. Analysis by SSR markers and genomic in situ hybridization of the self-progeny of disomic alien addition lines, backcross progeny of the pentaploid, allowed the isolation of five new MAALs. [less ▲]

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See detailSet up of simple sequence repeat markers and first investigation of the genetic diversity of West-African watermelon (Citrullus lanatus ssp. vulgaris oleaginous type)
Minsart, L. A.; Zoro Bi, I. A.; Djè, Y. et al

in Gentic Resources and Crop Evolution (2011), 58(6), 805-814

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See detailChanges in DNA-methylation during zygotic embryogenesis in interspecific hybrids of beans (Phaseolus spp.)
Abid, Ghassen ULg; Muhoviski, Yordan; Jacquemin, Jean-Marie et al

in Plant Cell, Tissue & Organ Culture (2011), (3), 383-393

Hybrid embryos resulting from crosses between Phaseolus species often fail to reach maturity and some combinations frequently abort at early developmental stages. The genetic or molecular basis for these ... [more ▼]

Hybrid embryos resulting from crosses between Phaseolus species often fail to reach maturity and some combinations frequently abort at early developmental stages. The genetic or molecular basis for these consistent developmental defects is at present not clear. However, an extremely complex genetic system, thought to be caused by major epigenetic changes associated with gene expression changes, has been shown to be active in plant species. We have investigated DNA methylation in two interspecific hybrids, Phaseolus vulgaris X Phaseolus coccineus and it reciprocal crosses, using methylation sensitive amplification polymorphism (MSAP). The potential use of MSAP for detecting methylation variation during embryogenesis in interspecific hybrids is discussed. Significant differences in the DNA methylation patterns were observed in abortive (interpecific hybrids) and non abortive (parental) genotypes. Taken together, our results strongly suggest that generalized alterations in DNA methylation profiles could play a causative role in early interspecific embryo abortion in vivo. A considerable change in the methylation pattern during embryogenesis could be involved in the disruption of the regulation or maintenance of the embryogenesis process of Phaseolus interspecific hybrids. The results also support the earlier hypothesis that DNA methylation is critical for the regulation of plant embryogenesis and gene expression. [less ▲]

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