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dc.contributorHussain, A.en_US
dc.contributorTahir, M.en_US
dc.contributorBahksh, A.en_US
dc.contributorEllis, R.H.en_US
dc.contributorSummerfield, R.J.en_US
dc.contributorRoberts, E. H.en_US
dc.creatorErskine, Williamen_US
dc.identifier.citationWilliam Erskine, A. Hussain, M. Tahir, A. Bahksh, R. H. Ellis, R. J. Summerfield, E. H. Roberts. (1/6/1994). Field evaluation of a model of photothermal flowering responses in a world lentil collection. TAG Theoretical and Applied Genetics, 88, pp. 423-428.en_US
dc.description.abstractA model to predict flowering time in diverse lentil genotypes grown under widely different photothermal conditions was developed in controlled environments. The present study evaluated that model with a world germ plasm collection of 369 accessions using two field environments in Syria and two in Pakistan. Photoperiod alone accounted for 69% of the variance in 1/f, the reciprocal of time (d) from sowing to flower. In contrast, temperature alone did not account for a significant proportion of variation in flowering time due to the exposure of plants to supra-optimal temperatures in the late-sown Syrian trial. With the model mean pre-flowering values of photoperiod and temperature combined additively to account for 90.3% of the variance of 1/f over accessions. The correlation of field-derived estimates of temperature sensitivity of accessions to glass-house-derived estimates was significant at P = 0.05, but the equivalent correlation for estimates of photoperiodic sensitivity was higher at P < 0.01. Flowering in the field was better measured as time from sowing to 50% plants in flower rather than time to first bloom or its node number. Dissemination of the lentil crop following domestication in West Asia to the lower latitudes such as Ethiopia and India has depended on selection for intrinsic earliness and reduced sensitivity to photoperiod. Movement from West Asia to the higher latitudes accompanied by spring sowing has resulted in a modest reduction in photoperiod sensitivity and an increase in temperature sensitivity.en_US
dc.publisherSpringer (part of Springer Nature)en_US
dc.sourceTAG Theoretical and Applied Genetics;88,(1994) Pagination 423-428en_US
dc.subjectgerm plasmen_US
dc.titleField evaluation of a model of photothermal flowering responses in a world lentil collectionen_US
dc.typeJournal Articleen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerNational Agricultural Research Center Jordan - NARC Jordanen_US
cg.contributor.centerUniversity of Reading - UORen_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.isijournalISI Journalen_US
dc.identifier.statusTimeless limited accessen_US
cg.journalTAG Theoretical and Applied Geneticsen_US

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