EMERGÊNCIA EM CAMPO E GERMINAÇÃO DE Peltophorum dublum (Spreng.) Taub. FABACEAE (CANAFÍSTULA) SOB DIFERENTES TEMPERATURAS COM O USO DE REGULADORES DE CRESCIMENTO
DOI:
https://doi.org/10.24278/2178-5031.20001228Keywords:
Peltophorum dubium, germination, field performance, GA, 3,4DAbstract
The aim of this work was to register the field and laboratory perfonnance of canafistula seeds in presence of different temperatures and growth regulators. The experiments were carried out with scarified seeds (sulfuric acid, 98% during 20 min.), Different test-solutions: Captan (0.2%) (control group); GA3 20 and 40Pl'm (+ Captan 0.2%); 3.40 10, 100, and 1000ppm (+ Captan 0.2%) were employed. The seeds were planted at 2 em depth afier imbibition during 24 h in different test solutions. The imbibition in 3.40 1000ppm reduced the emergence !ercentage. The seedling dry matter was reduce afie r pre-imbibition on 3.40 solutions and seedlings death was observed, around 16 days after emergence when 3.40 100 and 1000ppm were used. GA3 (20 or 40ppm) promoted a significant improvement on field performance for abnormal seedlings. Both GA3 concentrations increased germination percentage, under 12°C (minimal gennination limit), but no increase on rate emergence was registered. Under 24, 27, 30°C (sub-optimal, optimal and supra-optimal temperatures), the growth regulators were not effective to enhance the germinative process.
Downloads
References
ANDREOLI, c., KHAN, A.A. Matriconditioning integrated with gibberellic acid to hasten seed germination and improve stand establishment of pepper and tomato. Pesquisa Agropecuária Brasileira, v.34, p.1953-1958, 1999.
ARTECCA, R.N. Plant growth substances: principies and applications. I.ed. New Y ork: Chapman & Hapman, 1996. 332p.
AYOAMA, E.M.; ONO, E.; FURLAN, M.R. Estudo da germinação de sementes de lavanda. iLavandula angustifolicn. Sciencia Agricola,v.56, p.I-9, 1996.
BARDUCHE, D. et al. Effect of ABA and GA3 on protein mobilization in embryos and cotyledons of angico (Anandencmthera peregrina) (L.) Speg seeds during germination. Brazilian Archives of Biology and Technology,v.42, p.135-144, 1999.
BEVILÁCQUA, G.A.P. et ai. Desempenho de sementes de arroz irrigado tratadas com regulador de crescimento. I. Efeito da emergência em campo. Revista Brasileira de Sementes, v.15, p.67-74, 1983.1.0.;
BLACK, M. Seeds: physiology of development and gerrnination. 3.ed. New York: Plenurn Press, 1994. 443p.
BEWLEY, BRASIL. Ministério da Agricultura. Equipe Técnica' da Divisão de Sementes e Mudas. Regras parn análise de sementes. Brasilia: SNDNDNDV/CLAV, 1992. 365p.
CLARK, S.M.; SCOTI, D.J. Effects of carboxin, bcnornyl and Captan on the gcrmination of wheat during thc post harvest dormancy period. Seed Science & Technology,v.IO, p.87-94, 1982.
CRONQUIST, A. The evolution of classification of flowering plants. 2.ed. New York: The New York Botanical Garden, 1988. 55p.
DAVIES, P. Plant hormones and their role in plant growth and development. 2.ed. Boston: Nishoff Publishers, 1994. 678p.
EINHELLIG, F.A. Mechanism of action of allelochemicals in allelopathy. Acs Sym Ser., v.582, p.96-116, 1995.
___ .; RASMUSSEN, J.A. Effect of 3 phenolic acids on chlorophyll content and growth of soybean and grain sorghum seedlings. Journal ofChemical Ecology, v.5, p.815-824, 1979.
ESCHIAPATTI-FERREIRA, M.S. Avaliação do efeito de reguladores de crescimento, pré-condicionamento, quebra de dormência e temperatura na germinação de Senna macranthera (Irwin et Barneby). São Carlos: UFSCar, 1998. 105p. (Tese de Doutorado)
HEBLING, S. Aspectos ecofisiológicos da germinação de sementes de Enterolobium contortisillquum(Velloso Morong.). São Carlos: UFSCar, 1997. 117p. (Tese de Doutorado)
JELLER, H. Efeitos de fatores ambientais e métodos artificiais para superação de dormência em sementes de Cassio excelsa Schrad. São Carlos: UFSCar, 1997. 133p. (Dissertação de Mestrado)
KHAN, M.A.; RIZVI, Y. Studies on germination of Cressa cretica. Pakistan Journal of Weed Science and Research, v.4, p.89~98, 1991.
LABOURIAU, L.G. A germinação de sementes. Washington: Secretaria da OEA, 1983. 173p.
LORENZI, H. Árvores brasileiras: manual de identificação e cultivo de plantas arbóreas. Nova Odessa: Editora Plantarum, 1992. 352p.
MAYER, A.M.; POLJAKOFF-MA YBER, A. The germination of the seeds. 3.ed. New York: The Pergamon Press, 1993. 263p.
MC DONALD, M.D.; KHAN, AA. Acid scarification and protein synthesis during seed germination. Agronomy Journal, v.75, p.II-114, 1983.
NURZBURGER, 1.; LESHEM, V. The role of gibberelin and the hulls in the control of germination in Aegilops kotschry caryopses. Canadian Journal ofBotany, v.52, p.1597-1601, 1974.
PEREIRA, P.A.S. Efeito de tratamentos pré-germinativose aspectos eco fisiológicos da germinação de sementes de Triplaris braslliana Cham (pau-formiga). São Carlos: UFSCar, 1996. 86p. (Monografia de Graduação)
PEREZ, S.C.J.G. de A.; FANTI, s.c., CASALI,e.A. Temperature limit and thermal stress on seed germination of Peltophorum dubium Spreng Taubert. Revista Brasileira de Sementes, v.20, p.134-142, 1998.
____________ Donnancy break and light quality effects on seed germination of Peltophorum dubium (Spreng) Taubert Canafistula.Revista Árvore, v.5, p.131-137, 1999a.
_____________ Influência do armazenamento, substrato, ---- envelhecimento precoce e profundidade de plantio. Bragantia, v.58, p.57-68, 1999b.
PEREZ, S.C.J.G. de A.; MORAES, J.A.P.V. Influência da interação temperatura - giberelina na germinação de Prosopis juliflora (Sw) D.e. Pesquisa Agropecuária Brasileira, v.26, p.41-53, 1990.
PERSSON, B. Enhancement of seed germination in ornamental plants by growth regulators infused via acetone. Seed & Science & Technology, v.21, p.281-290, 1993.
SHAUKAT, S.S.; ZAMAM, Au., SHERWANI, U. Effect of 2,4D and phenolic compound on seed germination and growth of Pennisetum americanum (L.) Schumann and the leaching of chemicals in soil. Pakistan Journal of Botany, v.31, p.151-161, 199.9.
SIQUElRA, 1.0.; NAlR, M.G.;HAMMERSCHDMIDT, R Significance of phenolic - compound in plant soil - microbial systems. Critical Review ofPlant Science, v.I0, p.63-121, 1991.
SPIEGEL, M. R. Probabilidade e estatística. l.ed. Rio de Janeiro: Ed. Me Graw Hill do Brasil S/A Ltda., 1978. 518p. (Coleção Shaum)
UNGAR, I.A. Alleviation of seed dormancy in Spergularia marina. Botanical Gazette, v.145, p.33-36, 1984.
________ & BINET, P. Factors influencing seed ---- dormancy in Spergularia rnarina. Aquatic Botany, v.l, p.45-55, 1975.
VEIGA-PESSOA, H.B.S.; CÍCERO, SM.; SILVEIRA, F.A. Efeitos de herbicidas na qualidade fisiológica de sementes de arroz.
Revista brasileira de Sementes, v.7, p.l07-114, 1985.
WAREING, P.F.; PHILIPS, I.D.J. Growth and differentiation in plants. 3.ed. Oxford: Pergamon Press, 1983. 343p.
WILLIAN, RD.; HOAGLAND, RE. 1l1e effects of naturally - occurring phenolic compounds on seed germination.Weed Science, v.30, p.206-212, 1982.
