Type of Document	Master's Thesis
Author	Kerkhoff, Karen Leigh
URN	etd-11172012-040219
Title	Effects of defoliation on the cultivated strawberry :(Fragaria X ananassa Duch.)
Degree	Master of Science
Department	Horticulture
Advisory Committee	Advisor Name Title Williams, Jerry Michael Committee Chair Barden, John A. Committee Member Seiler, John R. Committee Member
Keywords	Defoliation
Date of Defense	1987-08-05
Availability	restricted
Abstract Using 'Redchief' (Junebearer) and 'Tribute' (dayneutral) cultivars, greenhouse and field studies were conducted to determine the effects of defoliation on photosynthesis, growth and yield of the strawberry. From preliminary photosynthesis experiments it was found that both 'Redchief' and 'Tribute' strawberry leaves reached maximum net photosynthesis (Pn) concurrently with full leaf expansion at approximately 8 to l0 days and 4 to 5 days, respectively, after unfolding. By exposing the plants to increasing irradiance it was determined that these cultivars were light saturated at 600 to 700)υmol•m-2s-1. Neither cultivar showed a consistent diurnal pattern when Pn was monitored hourly over two consecutive days.
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