Digitale Bibliotheek
Sluiten Bladeren door artikelen uit een tijdschrift
 
<< vorige   
     Tijdschrift beschrijving
       Alle jaargangen van het bijbehorende tijdschrift
         Alle afleveringen van het bijbehorende jaargang
           Alle artikelen van de bijbehorende aflevering
                                       Details van artikel 7 van 7 gevonden artikelen
 
 
  The measurement and modelling of losses of cucurbits to Tephritid fruit flies
 
 
Titel: The measurement and modelling of losses of cucurbits to Tephritid fruit flies
Auteur: John M. Stonehouse
Hari S. Singh
Ravindrakumar K. Patel
Subrata Satpathy
Timalapur M. Shivalingaswamy
Samarjit Rai
Abraham Verghese
John D. Mumford
Verschenen in: Communications in biometry and crop science
Paginering: Jaargang 2 (2007) nr. 1 pagina's 17-25
Jaar: 2007
Inhoud: Losses of cucurbit fruits to Tephritid fruit flies are often assessed as the infestation percentage of mature fruit at harvest, but this way of appraisal may underestimate losses, as attacks on pre-mature fruit that are lost before ripening reduce the mean mass of surviving fruit also. An alternative approach is proposed, which improves accuracy by incorporating the effects of losses of pre-mature fruit. This approach entails computation of an aggregate loss by combining infestation levels in four cohorts of fruit, assuming different rates of compensation by the plant for losses in each cohort. Using data from different sites in India, this "by cohort, compensated" model obtained significantly less variability, among replicates of identically-treated plots, than the mature-fruit-only model, and a pattern of losses comparable to those obtained by incorporating reductions in surviving-fruit mass. The model is more accurate and realistic than the assessment of mature fruit only
Uitgever: Faculty of Agriculture and Biology, Warsaw Agricultural University, Poland
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

                             Details van artikel 7 van 7 gevonden artikelen
 
<< vorige   
 
 Koninklijke Bibliotheek - Nationale Bibliotheek van Nederland