| responses of yearling steers to different stocking rates on a subtropical grass-legume pasture. | despite potential benefits, limitations of individual tropical legumes have restricted development of sustainable grass-legume pastures in tropical and subtropical regions. sowing mixtures of complementary legumes may overcome limitations of individual species. responses of yearling steers grazing a mixture of three tropical legumes with bahiagrass (paspalum notatum flugge) were evaluated at three stocking rates under continuous grazing. carpon desmodium (desmodium heterocarpon [l.] dc.), which ... | 1991 | 1894572 |
| 'candidatus phytoplasma graminis' and 'candidatus phytoplasma caricae', two novel phytoplasmas associated with diseases of sugarcane, weeds and papaya in cuba. | during 2003, surveys of sugarcane yellow leaf disease and papaya bunchy top-like disease were carried out on plantations in havana province, cuba, to determine the roles of weeds and auchenorrhyncha insects in the epidemiology of these diseases. more than 250 plant and insect samples were collected and indexed by using a nested pcr for phytoplasma 16s rdna with the generic primer pairs p1/p7 and r16f2n/r16r2. the pcr products were further characterized by restriction fragment length polymorphism ... | 2005 | 16280510 |
| competition by bradyrhizobium strains for nodulation of the nonlegume parasponia andersonii. | bradyrhizobium strains isolated from the nonlegume parasponia spp. formed a group of strains that were highly competitive for nodulation of p. andersonii when paired with strains isolated from legumes. strains from legumes, including those of similar effectiveness to ngr231 and cp283, were not able to form nodules as single occupants on p. andersonii in the presence of parasponia strains. however, ngr86, an isolate from macroptilium lathyroides, jointly occupied one-third of the nodules formed w ... | 1989 | 16347913 |
| two newly described begomoviruses of macroptilium lathyroides and common bean. | abstract macroptilium lathyroides, a perennial weed in the caribbean region and central america, is a host of macroptilium yellow mosaic florida virus (maymfv) and macroptilium mosaic puerto rico virus (mamprv). the genomes of maymfv and mamprv were cloned from m. lathyroides and/or field-infected bean and the dna sequences were determined. cloned a and b components for both viruses were infectious when inoculated to m. lathyroides and common bean. comparison of the dna sequences for cloned a an ... | 2003 | 18943157 |
| molecular characterization and experimental host range of an isolate of macroptilium golden mosaic virus that infects wissadula amplissima in jamaica. | partial genome sequences for the tentative begomovirus macroptilium golden mosaic virus (mgmv) have been previously reported and were originally obtained for an isolate that infected macroptilium lathyroides in jamaica. in this study, we pcr-amplified, cloned and determined the sequence for the complete genome of isolates of mgmv that we found infecting wissadula amplissima collected from august town and spanish town, jamaica. sequence analysis confirmed that mgmv is a distinct begomovirus speci ... | 2010 | 20347895 |
| contrasting genetic structure between two begomoviruses infecting the same leguminous hosts. | begomoviruses are whitefly-transmitted, ssdna plant viruses and are among the most damaging pathogens causing epidemics in economically important crops worldwide. wild/non-cultivated plants play a crucial epidemiological role, acting as begomovirus reservoirs and as 'mixing vessels' where recombination can occur. previous work suggests a higher degree of genetic variability in begomovirus populations from non-cultivated hosts compared with cultivated hosts. to assess this supposed host effect on ... | 2014 | 25028472 |
| two complete genome sequences of phasey bean mild yellows virus, a novel member of the luteoviridae from australia. | we present here the complete genome sequences of a novel polerovirus from trifolium subterraneum (subterranean clover) and cicer arietinum (chickpea) and compare these to a partial viral genome sequence obtained from macroptilium lathyroides (phasey bean). we propose the name phasey bean mild yellows virus for this novel polerovirus. | 2016 | 26847905 |