Effects of defoliation on the cultivated strawberry (Fragaria X ananassa Duch.)
<p>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 tha...
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ndltd-VTETD-oai-vtechworks.lib.vt.edu-10919-457992021-05-05T05:40:26Z Effects of defoliation on the cultivated strawberry (Fragaria X ananassa Duch.) Kerkhoff, Karen Leigh Horticulture Williams, Jerry Michael Barden, John A. Seiler, John R. LD5655.V855 1987.K474 Defoliation Perennials Strawberries <p>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)Ï molâ ¢m<sup>-2</sup>s<sup>-1</sup>. Neither cultivar showed a consistent diurnal pattern when Pn was monitored hourly over two consecutive days.</p> Master of Science 2014-03-14T21:49:56Z 2014-03-14T21:49:56Z 1987-08-05 2012-11-17 2012-11-17 2012-11-17 Thesis Text etd-11172012-040219 http://hdl.handle.net/10919/45799 http://scholar.lib.vt.edu/theses/available/etd-11172012-040219/ OCLC# 17207316 LD5655.V855_1987.K474.pdf x, 62 leaves BTD application/pdf application/pdf Virginia Tech |
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LD5655.V855 1987.K474 Defoliation Perennials Strawberries |
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LD5655.V855 1987.K474 Defoliation Perennials Strawberries Kerkhoff, Karen Leigh Effects of defoliation on the cultivated strawberry (Fragaria X ananassa Duch.) |
description |
<p>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)Ï molâ ¢m<sup>-2</sup>s<sup>-1</sup>.
Neither cultivar showed a consistent diurnal pattern when
Pn was monitored hourly over two consecutive days.</p> === Master of Science |
author2 |
Horticulture |
author_facet |
Horticulture Kerkhoff, Karen Leigh |
author |
Kerkhoff, Karen Leigh |
author_sort |
Kerkhoff, Karen Leigh |
title |
Effects of defoliation on the cultivated strawberry (Fragaria X ananassa Duch.) |
title_short |
Effects of defoliation on the cultivated strawberry (Fragaria X ananassa Duch.) |
title_full |
Effects of defoliation on the cultivated strawberry (Fragaria X ananassa Duch.) |
title_fullStr |
Effects of defoliation on the cultivated strawberry (Fragaria X ananassa Duch.) |
title_full_unstemmed |
Effects of defoliation on the cultivated strawberry (Fragaria X ananassa Duch.) |
title_sort |
effects of defoliation on the cultivated strawberry (fragaria x ananassa duch.) |
publisher |
Virginia Tech |
publishDate |
2014 |
url |
http://hdl.handle.net/10919/45799 http://scholar.lib.vt.edu/theses/available/etd-11172012-040219/ |
work_keys_str_mv |
AT kerkhoffkarenleigh effectsofdefoliationonthecultivatedstrawberryfragariaxananassaduch |
_version_ |
1719402770797166592 |