@article{Harvey:313062,
      recid = {313062},
      author = {Harvey, J. M. and Stewart, J. K. and Atrops, E. A. and  Ceponis, M. J. and Chapogas, P. G.},
      title = {Field Trimming of Lettuce:  Effects on Package Weight and  Market Quality  },
      address = {1961-09},
      number = {2393-2021-2298},
      series = {Marketing Research Report No. 497},
      pages = {18},
      year = {1961},
      abstract = {Excerpts from the report:  The weight of lettuce packed in  cartons has increased progressively, largely due to  pressure from wholesale buyers and the subsequent selling  of lettuce on a weight basis at retail.  Aside from the  obvious effect of this practice on gross weights of lettuce  packages, the effect on quality should be considered.   Placing excessive amounts of lettuce in a carton would  appear to be a primary cause of bruising and crushing of  the heads.  A reduction of package weights might be  accomplished by trimming the heads in the field to reduce  the number of wrapper leaves remaining in the pack.  Five  to six wrapper leaves are commonly left on the heads.  It  has been suggested that decay may be reduced by trimmming,  as outer wrapper leaves are contaminated with decay-causing  organisms.  The fact that they are older chronologically  and physiologically makes the wrapper leaves more  susceptible to decay than the younger leaves toward the  center of the head.  At the request of industry  representatives, tests were conducted to relate various  degrees of trimming of the heads to package weight,  bruising, decay, and other quality factors.},
      url = {http://ageconsearch.umn.edu/record/313062},
      doi = {https://doi.org/10.22004/ag.econ.313062},
}