000			02888naa a22005057a 4500
003			CR-SiIICA
005			20220831062648.0
006			a|||||r|||| 00| 0
007			ta
008			870101e cr |||||r|||| 00| | eng d
022			_a0534-5391
040			_cCR-SiIICA
041			_aeng _beng
090			_aIICA-PM 378
100			_979369 _aHutton, D.G.
100			_a Brathwaite, Chelston W.D. _9359
100			_a Brathwaite, Chelston W.D. _9359
100			_9106119 _aPollard, G.V.
110			_91280 _aIICA, Port-of-Spain (Trinidad y Tobago)
111			_a1. Meeting of the Society for Plant Protection in the Caribbean _cKingston (Jamaica) _d21-27 Nov 1981
245			_aGrowth and yield response to desinfecting negro yam (Dioscorea rotundata) planting pieces of Pratylenchus coffeae and planting soil free of the nematode
245			_aUrgent plant pest and disease problems in the Caribbean. Proceedings
260			_aPort-of-Spain (Trinidad y Tobago) _bIICA _c1982
300			_ap. 137-143
440			_9170743 _aPublicación Miscelánea (IICA) _x0534-5391 _vno. 378
500			_a6 ref. Sum. (En)
520			_aPratylenchus coffeae is the phytoparasitic nematode most frequently found infesting yam (Dioscorea spp.) tubers affected by a dry rot called burn or burning in Jamaica; Scutellonema bradys has been encountered often and Hoplolaimus spp. twice. It appears that the dry rot injures or destroys primordia on yam planting material resulting in unthrifty plants or non-sprouted planting pieces hence poor stands in the field. Negro yam (D. rotundata) planting pieces were disinfested of P. coffeae by dipping in water at 50C for 40 min. or for 30 min. in a 2.500 ppm. Oxamyl solution or left undisinfested. The yam pieces were planted in plots artificially infested with or free of P. coffeae. After five and 11 weeks, there was no significant difference between treatments in numbers of sprouted yam pieces. At 11 weeks, vines borne by undisinfested planting pieces in P. coffeae-infested plots were shortest while the tallest vines had grown from disinfested yam pieces in P. coffeae free plots. Overall, plots planted with yam pieces disinfested by Oxamyl or hot water produced 22 percent and 19 percent greater quantitative yields of tubers respectively than those with undisinfested pieces. Tubers borne in P. coffeae-infested plots planted with undisinfested yam pieces showed highest levels of the nematode-related dry rot
690			_9144518 _aDIOSCOREA ROTUNDATA
690			_9151256 _aINFECCIONES POR NEMATODOS
690			_9159910 _aPRATYLENCHUS
690			_9162442 _aRENDIMIENTO
901			_aH10 _b01230
903			_aKE
904			_aIICA
905			_aC
906			_a19870101
908			_aB
909			_aAMS
912			_aeng
914			_aIICA
914			_aINTER
914			_aBV
942			_cSER
942			_cIMP
999			_c14990 _d14990