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Christos Lykas, Constantinos Kittas, Nikolaos Katsoulas and Maria Papafotiou

Heins, 2002 ). One of the limitations of photoselective (P) polyethylene (PE) films is that they reduce photosynthetic photon flux density ( PPFD ) affecting the photosynthetic rate of the plants ( Wilson and Rajapakse, 2001 ). Furthermore, light

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Huan Zhang, Lisa Wasko DeVetter, Edward Scheenstra and Carol Miles

2.5 cm by 2.0 cm impermeable polyethylene plastic zip-lock bag (S-15165; Uline, Pleasant Prairie, WI), weighed using an electronic analytic balance (AJ100; Mettler Toledo, Columbus, OH), and the dry weight was recorded before the harvest. For each

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H.C. Wien, P.L. Minotti and V.P. Grubinger

Abbreviation: PE, polyethylene. 1 Professor. 2 Associate Professor. 3 Former Graduate Assistant Current address: Univ. of Vermont Extension Service, Box 2430, Brattleboro, VT 05301. Cornell Univ. Dept. of Fruit and Vegetable Science paper no. 21

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Dennis R. Decoteau

leaves removed ( Decoteau, 1990 ). Various cultural practices and environmental factors have profound effects on crop development resulting in modified overall canopy structure and appearance. In commercial tomato production, polyethylene (plastic

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Margarita Velandia, Karen L. DeLong, Annette Wszelaki, Susan Schexnayder, Christopher Clark and Kimberly Jensen

Polyethylene mulch is traditionally used in the production of some fruits and vegetables to maintain soil moisture and increase soil temperature, control weeds, improve crop quality, and increase yield ( Emmert, 1957 ). In the United States, 1

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Sanjeev K. Bangarwa, Jason K. Norsworthy and Edward E. Gbur

, has been widely used under polyethylene mulch for effective weed control in vegetable production, including bell pepper ( Duniway, 2002 ). However, because of its ozone-depleting potential, methyl bromide is being phased out from the U.S. agricultural

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Bielinski M. Santos, James P. Gilreath and Myriam N. Siham

Polyethylene-mulched vegetables are planted on ≈70,000 acres in Florida ( Olson, 2004 ). One of the main problems in plasticulture is nutsedge control, because of its ability to penetrate through mulch films and to reduce crop yields severely

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Qi Zhang, Liqi Yang and Kevin Rue

524 Mexal, J. Fisher, J.T. Osteryoung, J. Reid, C.P. 1975 Oxygen availability in polyethylene glycol solutions and its implications in plant-water relations Plant Physiol. 55 20 24 Michel, B.E. Kaufmann, M.R. 1973 The osmotic potential of polyethylene

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Haley Rylander, Anusuya Rangarajan, Ryan M. Maher, Mark G. Hutton, Nicholas W. Rowley, Margaret T. McGrath and Zachary F. Sexton

northeastern United States to reduce tillage by decreasing weed pressure and maintaining prepared beds before planting. Tarps are reusable sheets of 0.15-mm (5–6 mil) opaque polyethylene impermeable to water and sized to cover multiple crop rows at one time

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Jessica R. Goldberger, Lisa W. DeVetter and Katherine E. Dentzman

et al., 2017 ; Rodríguez-Seijo and Pereira, 2019 ). Of particular concern are the environmental impacts associated with the use and disposal of low-density polyethylene plastic mulch films for crop production ( He et al., 2015 ; Kasirajan and