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| DOI: | 10.1590/0102-33062015abb0233 |
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| Web URL(s): | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000100152&lng=en&nrm=iso&tlng=en
Last checked: 03/07/2016
http://www.scielo.br/pdf/abb/v30n1/0102-3306-abb-30-01-00152.pdf
Last checked: 03/07/2016
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Fabbri, Liliana Teresa;
Ploschuk, Edmundo Leonardo;
LopĂ©z, MarĂa Virginia;
Insausti, Pedro;
Rua, Gabriel Hugo |
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| Author Affiliation: | Fabbri, Ploschuk, and LopĂ©z: Facultad de AgronomĂa, Universidad de Buenos Aires, Buenos Aires, Argentina; Insausti and Rua: Facultad de AgronomĂa, Universidad de Buenos Aires, Buenos Aires, Argentina and "Carrera del Investigador", Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas (CONICET), Argentina |
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| Title: | Freeze tolerance differs between two ecotypes of Paspalum vaginatum (Poaceae) |
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| Section: | Short communication
Other records with the "Short communication" Section
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| Source: | Acta Botânica Brasilica. Vol. 30, No. 1, January-March 2016, p. 152-156. |
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| Publishing Information: | Porto Alegre, Brazil: Sociedade Botânica do Brasil |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Cold resistance; Comparisons; Cultivar evaluation; Freezing; Morphological evaluation; Paspalum vaginatum; Physiological responses; Temperature response
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| Cultivar Names: | Sea Isle 2000 |
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| Abstract/Contents: | "Morphological and physiological responses to freezing were evaluated in two ecotypes of the perennial turfgrass Paspalum vaginatum. Leaf extension rate, number of active meristems, leaf water potential and net photosynthesis were measured on plants of both a commercial cultivar, 'Sea Isle 2000', and a wild ecotype from the Flooding Pampa grasslands of Argentina. Plants were propagated by cloning, cultivated in pots, and examined during 18 consecutive days under two treatments: a non-frozen control treatment (15.5±7 °C) and a frozen treatment with two stages: Stage 1 with four hours of freezing stress for 10 nights (-5°C), and Stage 2 with 12 hours of freezing stress for eight nights (five nights at -5°C and three nights at -8°C). After these treatments, plants were returned to the outside environment to evaluate shoot injury and post-freezing recovery. Leaf water potential, net photosynthesis and leaf extension rate were significantly higher in the wild ecotype than in the commercial cultivar. Meristem density was reduced after freezing in both ecotypes, but was more pronounced in the commercial cultivar (98.5%) than in the wild ecotype (80%). Thus, the two ecotypes coming from different environments, exhibited different morphological and physiological responses to exposure to freezing temperatures." |
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| Language: | English |
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| References: | 18 |
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| See Also: | Other items relating to: Seashore Paspalum - Since 2000 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fabbri, L. T., E. L. Ploschuk, M. V. Lopéz, P. Insausti, and G. H. Rua. 2016. Freeze tolerance differs between two ecotypes of Paspalum vaginatum (Poaceae). Acta Bot. Bras. 30(1):p. 152-156. |
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| DOI: 10.1590/0102-33062015abb0233 |
| Web URL(s):
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000100152&lng=en&nrm=iso&tlng=en
Last checked: 03/07/2016
http://www.scielo.br/pdf/abb/v30n1/0102-3306-abb-30-01-00152.pdf
Last checked: 03/07/2016
Requires: PDF Reader |
| 
MSU catalog number: b4897634 |
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