The effect of flurprimidol on bud flush, shoot growth, and on endogenous gibberellins and abscisic acid of Douglas-fir seedlings
For 4-month-old Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] seedlings under 17-h photoperiods in controlled environment conditions, flurprimidol (alpha-(1-methlyethyl-alpha-[4-(trifluoromethoxy) phenyl]-5-pyrimidine-methanol) decreased incidence of second flushing from 81 to 54% and significa...
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| Veröffentlicht in: | Journal of plant growth regulation 1994-06, Vol.13 (3), p.131-136 |
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| container_title | Journal of plant growth regulation |
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| creator | Graham, J.S. (Oregon State University, Corvallis, OR.) Hobbs, S.D Zaerr, J.B |
| description | For 4-month-old Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] seedlings under 17-h photoperiods in controlled environment conditions, flurprimidol (alpha-(1-methlyethyl-alpha-[4-(trifluoromethoxy) phenyl]-5-pyrimidine-methanol) decreased incidence of second flushing from 81 to 54% and significantly reduced height growth in the second year following low-temperature treatment, in comparison to untreated controls. For seedlings under 15-h photoperiods, flurprimidol had only limited early effects, but after a period of bud dormancy, shoot growth was reduced to one-third that of the untreated controls. Under both photoperiods flurprimidol significantly depressed abscissic acid levels and gibberellin-like bioactivity. These results suggest that growth reduction in this conifer by flurprimidol may well involve inhibition of gibberellin biosynthesis |
| doi_str_mv | 10.1007/BF00196376 |
| format | Article |
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(Oregon State University, Corvallis, OR.)</creatorcontrib><creatorcontrib>Hobbs, S.D</creatorcontrib><creatorcontrib>Zaerr, J.B</creatorcontrib><title>The effect of flurprimidol on bud flush, shoot growth, and on endogenous gibberellins and abscisic acid of Douglas-fir seedlings</title><title>Journal of plant growth regulation</title><description>For 4-month-old Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] seedlings under 17-h photoperiods in controlled environment conditions, flurprimidol (alpha-(1-methlyethyl-alpha-[4-(trifluoromethoxy) phenyl]-5-pyrimidine-methanol) decreased incidence of second flushing from 81 to 54% and significantly reduced height growth in the second year following low-temperature treatment, in comparison to untreated controls. For seedlings under 15-h photoperiods, flurprimidol had only limited early effects, but after a period of bud dormancy, shoot growth was reduced to one-third that of the untreated controls. 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Psychology</subject><subject>GIBBERELLINE</subject><subject>Growth and development</subject><subject>Growth regulators</subject><subject>INHIBIDORES DEL CRECIMIENTO</subject><subject>PHOTOPERIODICITE</subject><subject>Plant physiology and development</subject><subject>PLANTULAS</subject><subject>PLANTULE</subject><subject>PSEUDOTSUGA MENZIESII</subject><subject>REBROTE</subject><subject>REPOUSSE</subject><subject>RETARDATEUR DE CROISSANCE</subject><subject>TALLO</subject><subject>TIGE</subject><subject>VARIACION ESTACIONAL</subject><subject>VARIATION SAISONNIERE</subject><subject>Vegetative apparatus, growth and morphogenesis. 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Senescence</topic><topic>YEMA (PLANTA)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Graham, J.S. (Oregon State University, Corvallis, OR.)</creatorcontrib><creatorcontrib>Hobbs, S.D</creatorcontrib><creatorcontrib>Zaerr, J.B</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Journal of plant growth regulation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Graham, J.S. (Oregon State University, Corvallis, OR.)</au><au>Hobbs, S.D</au><au>Zaerr, J.B</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effect of flurprimidol on bud flush, shoot growth, and on endogenous gibberellins and abscisic acid of Douglas-fir seedlings</atitle><jtitle>Journal of plant growth regulation</jtitle><date>1994-06-01</date><risdate>1994</risdate><volume>13</volume><issue>3</issue><spage>131</spage><epage>136</epage><pages>131-136</pages><issn>0721-7595</issn><eissn>1435-8107</eissn><coden>JPGRDI</coden><abstract>For 4-month-old Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] seedlings under 17-h photoperiods in controlled environment conditions, flurprimidol (alpha-(1-methlyethyl-alpha-[4-(trifluoromethoxy) phenyl]-5-pyrimidine-methanol) decreased incidence of second flushing from 81 to 54% and significantly reduced height growth in the second year following low-temperature treatment, in comparison to untreated controls. For seedlings under 15-h photoperiods, flurprimidol had only limited early effects, but after a period of bud dormancy, shoot growth was reduced to one-third that of the untreated controls. Under both photoperiods flurprimidol significantly depressed abscissic acid levels and gibberellin-like bioactivity. These results suggest that growth reduction in this conifer by flurprimidol may well involve inhibition of gibberellin biosynthesis</abstract><cop>New York, NY</cop><pub>Springer</pub><doi>10.1007/BF00196376</doi><tpages>6</tpages></addata></record> |
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| ispartof | Journal of plant growth regulation, 1994-06, Vol.13 (3), p.131-136 |
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| language | eng |
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| source | Springer Nature - Complete Springer Journals |
| subjects | ACIDE ABSCISSIQUE ACIDO ABSCISICO ACIDO GIBERELICO Agronomy. Soil science and plant productions Biological and medical sciences BOURGEON Chemical agents CRECIMIENTO CROISSANCE DORMANCE DORMICION Economic plant physiology FOTOPERIODISMO Fundamental and applied biological sciences. Psychology GIBBERELLINE Growth and development Growth regulators INHIBIDORES DEL CRECIMIENTO PHOTOPERIODICITE Plant physiology and development PLANTULAS PLANTULE PSEUDOTSUGA MENZIESII REBROTE REPOUSSE RETARDATEUR DE CROISSANCE TALLO TIGE VARIACION ESTACIONAL VARIATION SAISONNIERE Vegetative apparatus, growth and morphogenesis. Senescence YEMA (PLANTA) |
| title | The effect of flurprimidol on bud flush, shoot growth, and on endogenous gibberellins and abscisic acid of Douglas-fir seedlings |
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