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Autor: Grof, B

Agronomic assessment of 76 accessions of tropical fine stem stylo or "tardio" (Stylosanthes guianensis Sw. var. guianensis) was carried out at the Carimagua Research Station in the eastern plains region of Colombia. Of 27 accessions tested for dry matter yield, CIAT 10136 was the highest yielder ...


Grof, B[Preliminary studies on the performance of accessions of tropical fine stem stylo (Stylosanthes guianensis sw. var. guianensis) in the eastern plains of Colombia]Preliminary studies on the performance of accessions of tropical fine stem stylo (Stylosanthes guianensis sw. var. guianensis) in the eastern plains of Colombia

Twenty Mimosa-nodulating bacterial strains from Brazil and Venezuela, together with eight reference Mimosa-nodulating rhizobial strains and two other ?-rhizobial strains, were examined by amplified rRNA gene restriction analysis. They fell into 16 patterns and formed a single cluster together wit...


Chen, W.M.Faria, S.M. deStraliotto, RPitard, RMSimoes-Araujo, JLChou, JHChou, YJBarrios, E.Prescott, ARElliott, GNSprent, JIYoung, JPWJames, EK[Proof that Burkholderia strains form effective symbioses with legumes : A study of novel Mimosa-nodulating strains from South America]Proof that Burkholderia strains form effective symbioses with legumes : A study of novel Mimosa-nodulating strains from South America

Rust caused by Puccinia stylosanthis is reported for the first time on native populations of Stylosanthes aurea and S. guianensis var. pauciflora in the vicinity of Diamantina, Minas Gerais, Brazil. Although not common in May 1983, rust severely affected 50% of S. aurea and moderately affected mo...


Lenne, J.M.Sousa Costa, N.M. de[Puccinia stylosanthis on Stylosanthes spp. in Brazil]Puccinia stylosanthis on Stylosanthes spp. in Brazil

The effects of size of terminal stem cuttings (2-, 3-, or 4-leaf) and of auxin treatment on percent rooting, root number and root length of six Stylosanthes guianensis accessions were evaluated in a single, factorial experiment. Overall, 66% of cuttings rooted within ten days. Accessions differ...


Miles, John W.[Rapid vegetative propagation of Stylosanthes guianensis]Rapid vegetative propagation of Stylosanthes guianensis
Autor: Lenne, J.M.

The detection of the root-knot nematode, Meloidogyne javanica, as a pathogen of Desmodium spp. in Colombia, is the first reported case in South Aemerica. In the field, promising pasture legumes D. gyroides, D. heterocarpon and D. ovalifolium were severely damaged, while adjacent stands of Centros...


Lenne, J.M.[Reaction of Desmodium species and other tropical pasture legumes to the root-knot nematode Meloidogyne javanica]Reaction of Desmodium species and other tropical pasture legumes to the root-knot nematode Meloidogyne javanica

In recent years, increasing numbers of pathogens and pests have been reported from major centres of tropical pasture research. Damage is often severe and controls are needed. Diseases and pests may be controlled chemically, biologically, culturally and genetically. In pasture plants genetical res...


Lenne, J.M.Turner, J.W.Cameron, DF[Resistance to diseases and pests of tropical pasture plants]Resistance to diseases and pests of tropical pasture plants

Three phases of Rhizobium inoculation trials were carried out as part of a programme to select forage legume germplasm adapted to acid, infertile Oxisols of tropical America. Firstly, a range of tropical forage legumes were evaluated for their response to N fertilization or inoculation with strai...


Sylvester-Bradley, Rosemary[Rhizobium inoculation trials designed to support a tropical forage legume selection programme]Rhizobium inoculation trials designed to support a tropical forage legume selection programme

The seed yields and limitations to yield for nine pasture legumes in a tropical savanna region were defined in a 3-year field experiment at the Cerrodos Agricultural Research Centre near Brasilia (15°36' S, 47° 42' W). Assessment was based on flowering times, incidence of diseases and pests, yiel...


Andrade, Ronaldo P. deThomas, D.Ferguson, John E.[Seed production of pasture species in a tropical savanna region of Brazil. 1. Legumes]Seed production of pasture species in a tropical savanna region of Brazil. 1. Legumes
Zhiping, QiRao, Idupulapati M.Ricaurte Oyola, José JaumerAmézquita Collazos, EdgarSanz Scovino, José IgnacioKerridge, Peter C.[Root distribution and nutrient uptake in crop-forage systems on Andean hillsides]Root distribution and nutrient uptake in crop-forage systems on Andean hillsides
Autor: Lenne, J.M.

A wide range of fungi, two bacteria and several viruses and nematodes have been recorded throughout the tropics on a group of Cassia species defined as taxonomically and geographically related to Cassia rotundifolia. Although limited information was found on the relative importance of these patho...


Lenne, J.M.[Diseases of Cassia species--a review]Diseases of Cassia species--a review

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