Artículos de revistas
Morphological Variables Of Sugar Cane As A Function Of The Water Regime During Initial Development [variáveis Morfológicas Da Cana-de-açúcar Em Função Do Regime Hídrico Durante O Desenvolvimento Inicial]
Registro en:
Irriga. Universidade Estadual Paulista - Unesp, v. 19, n. 4, p. 573 - 584, 2014.
14137895
2-s2.0-84921979147
Autor
De Holanda L.A.
Santos C.M.
Sampaio Neto G.D.
Sousa A.P.
Silva M.A.
Institución
Resumen
Water deficit is one of the factors which most limit agriculture yield and growth. Although sugar cane has moderate tolerance to drought, it presents high yield losses under the influence of this abiotic factor. Based on this fact, selection of genotypes tolerant to water stress may represent an alternative for decreasing the amount of water used for irrigation, while keeping or increasing yield. This study was performed in order to evaluate the performance of four sugarcane cultivars during initial development under water stress conditions, by means of morphological variables to select more tolerant genotypes to drought. The experiment was carried out in a greenhouse at the Department of Rural Engineering, College of Agricultural Sciences - UNESP/Botucatu – SP, from November 26th 2010 to April 5th 2011. A total of four sugar cane cultivars were evaluated (RB855453, RB92579, RB965902 and RB965917) under two treatments as follows: control (100% field capacity) and water stress (50% field capacity). Evaluations were performed at 0, 28 and 63 days after treatment application. The following morphological variables were analyzed: plant height, leaf area, leaf length, leaf width, number of green leaves, shoot and root dry matter. The RB855453 and RB92579 cultivars produced more shoot and root dry matter under water stress treatment, while the RB965902 and RB965917 cultivars had lower shoot and root dry matter production under the same conditions. Therefore, the RB855453 and RB 92579 cultivars can be considered tolerant while the RB965902 and RB965917 cultivars can be considered susceptible. 19 4 573 584 Barbosa, G.V.S., (2000) Novas variedades RB de cana-de-açúcar para Alagoas, p. 16. , Maceió: Ed. UFAL Cavatte, P.C., A fisiologia dos estresses abióticos (2011) Melhoramento De Plantas Para condições De Estresses abióticos, pp. 39-79. , FRITSCHE-NETO, R. BORÉM, A. (Ed.), Visconde do Rio Branco: Suprema Gonçalves, E.R., (2008) Fotossíntese, osmorregulação E Crescimento Inicial De Quarto Variedades De cana-de-açúcar Submetida à deficiência hídrica, , 2008. 66 f. Dissertação (Mestrado em Agronomia/Produção Vegetal)-Universidade Federal do Alagoas, Rio Largo Hermann, E.R., Câmara, G.M.S., Um método simples para estimar a área foliar da cana-de-açúcar (1999) Revista Da STAB, 17, pp. 32-34. , Piracicaba Inman-Bamber, N.G., Smith, D.M., Water relations in sugarcane and response to water deficits (2005) Field Crops Research, 92 (2), pp. 185-202. , Amsterdam Inman-Bamber, N.G., Temperature and seasonal effects on canopy development and light interception of sugarcane (1994) Field Crops Research, 36, pp. 41-51. , Amsterdam Landell, M.G.A., A interação entre a cana-de-açúcar e ambientes de produção estressantes (2010) Tópicos Em Ecofisiologia Da cana-de-açúcar, 1, pp. 34-42. , Botucatu: FEPAF Maas, E.V., Hoffman, G.J., Crop salt tolerance: Current assessment (1977) Journal of Irrigation and Drainage Division, 103 (2), pp. 115-134. , New York Machado, R.S., Respostas biométricas e fisiológicas ao déficit hídrico em cana-de-açúcar em diferentes fases fenológicas (2009) Pesquisa Agropecuária Brasileira, 44 (12). , http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009001200003, Brasília, DF, Acesso em: 28 jun. 2012 O’Neill, P.M., Shanahan, J.F., Schepers, J.S., Use of chlorophyll fluorescence assessments to differentiate corn hybrid response to variable water conditions (2006) Crop Science, 46, pp. 681-687. , Madison Páez, A., Water stress and clipping management effects on guineagrass: I. Growth and biomass allocation (1995) Agronomy Journal, 87, pp. 698-706. , Madison Pincelli, R.P., Silva, M.A., Alterações morfológicas foliares em cultivares de cana-de-açúcar em resposta à deficiência hídrica (2012) Bioscience, 28. , Uberlândia Silva, M.A., Agronomic performance of sugarcane families in response to water stress (2008) Bragantia, 67, pp. 656-661. , Campinas Sinclair, T.R., Sugarcane leaf area development under field conditions in Florida, USA (2004) Field Crops Research, 88, pp. 171-178. , Amsterdam Taiz, L., Zeiger, E., (2004) Fisiologia Vegetal, p. 719. , 3. ed. Porto, Alegre: Artmed