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An interspecific cross (BC 1) involving a species with one of the largest genomes in the Coffea genus [Coffea heterocalyx (HET), qDNA = 1.74 pg] and a species with a medium-sized genome [Coffea canephora (CAN), qDNA = 1.43 pg] was studied using two types of molecular markers, AFLP and SSR. One hu...


Coulibaly, IRevol, BNoirot, MPoncet, VLorieux, MCarasco-Lacombe, CMinier, JDufour, MHamon, P[AFLP and SSR polymorphism in a coffea interspecific backcross progeny [(C. heterocalyx x C. canephora) x C. canephora]]AFLP and SSR polymorphism in a coffea interspecific backcross progeny [(C. heterocalyx x C. canephora) x C. canephora]
Pérez Velásquez, Juan CarlosCeballos, H.Ramírez, I.C.Lenis, Jorge I.Calle, FMorante, N[Adjustment for missing plants in cassava evaluation trials]Adjustment for missing plants in cassava evaluation trials

Nitrogen (N) deficiency is a major constraint to the productivity of the African smallholder farming systems. Grain, green manure and forage legumes have the potential to improve the soil N fertility of smallholder farming systems through biological N2-fixation. The N2-fixation of bean (Phaseolus...


Ojiem, JOVanlauwe, BernardRidder, N.A. deGiller, Ken E.[Niche-based assessment of contributions of legumes to the nitrogen economy of Western Kenya smallholder farms]Niche-based assessment of contributions of legumes to the nitrogen economy of Western Kenya smallholder farms

Leucaena leucocephala is an important agroforestry species pan-tropically, but relatively little is known of the forage production potential of other species in the genus. The agronomic potential of 116 accessions, represent ing the 28 species and subspecies of the Leucaena genus and several arti...


Mullen, BFGabunada Junior, FAShelton, HMStür, Werner W.[Agronomic evaluation of Leucaena. Part 2. Productivity of the genus for forage production in subtropical Australia and humid-tropical Philippines]Agronomic evaluation of Leucaena. Part 2. Productivity of the genus for forage production in subtropical Australia and humid-tropical Philippines

Isolates of Sphaceloma manihoticola, the asexual stage of Elsinoe brasiliensis, were collected from several regions of south-central Brazil. The isolates were obtained from samples of leaves, stems, and petioles of cassava (Manihot esculenta) and the weedy Euphorbia heterophylla ( amendoim bravo ...


Álvarez, E.Mejía De Los Rios, J.F.Valle, T.L.[Molecular and pathogenicity characterization of Sphaceloma manihoticola isolates from South-Central Brazil]Molecular and pathogenicity characterization of Sphaceloma manihoticola isolates from South-Central Brazil

The South American forage legume Arachis pintoi was found to be affected by foliar ring spot symptoms in surveys of various localities in the Cauca Valley of Colombia. A filamentous virus (approximately 750 nm) isolated from symptomatic A. pintoi plants induced the characteristic ring spot sympto...


Morales, Francisco JoséCastaño, M.Velasco, Ana CeciliaArroyave, José A.[Natural infection of tropical forage legume species of Arachis and Stylosanthes by potyviruses related to peanut mottle virus]Natural infection of tropical forage legume species of Arachis and Stylosanthes by potyviruses related to peanut mottle virus

African oil palm ringspot virus (AOPRV) had been previously described as a fovea-like virus associated with a lethal disease of African oil palm (Elaeis guineensis) in South America. The original report was based on partial sequence and a distant relationship between AOPRV and Apple stem pitting ...


Lozano Potes, IMorales, Francisco JoséMartínez, A.K.Pena, E[Molecular characterization and detection of African oil palm ringspot virus]Molecular characterization and detection of African oil palm ringspot virus

Nutrient balances are useful tools as indicators of potential land degradation and for optimizing nutrient use, and are thus highly relevant in the African context. A comprehensive literature review on nutrient balances in Africa was carried out to illustrate the main approaches, challenges, and ...


Cobo Borrero, Juan G.Dercon, G.Cadisch, Georg[Nutrient balances in African land use systems across different spatial scales: a review of approaches, challenges and progress]Nutrient balances in African land use systems across different spatial scales: a review of approaches, challenges and progress

Canavalia brasiliensis (canavalia), a drought tolerant legume, was introduced into the smallholder traditional crop-livestock production system of the Nicaraguan hillsides as green manure to improve soil fertility or as forage during the dry season for improving milk production. Since nitrogen (N...


Douxchamps, SabineHumbert, FLHoek, Rein van derMena Urbina, Martin A.Bernasconi, SSchmidt, ARao, Idupulapati M.Frossard, EmmanuelOberson, Astrid[Nitrogen balances in farmers fields under alternative uses of a cover crop legume: a case study from Nicaragua]Nitrogen balances in farmers fields under alternative uses of a cover crop legume: a case study from Nicaragua

The Amazon river dolphin, genus Inia, is endemic to the major river basins of northern South America. No previous studies have focused on the genetic structure of this genus. In this work, 96 DNA samples from specimens of this genus were collected in the Orinoco basin (four rivers), the Putumayo ...


Banguera Hinestroza, ECárdenas, H.Ruiz Garcia, MMarmontel, MGaitán Solís, ElianaVazquez, RGarcía Vallejo, F.[Molecular identification of evolutionary significant units in the Amazon river dolphin Inia sp. (Cetacea: Iniidae)]Molecular identification of evolutionary significant units in the Amazon river dolphin Inia sp. (Cetacea: Iniidae)

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