| Texto completo | |
| Autor(es): |
Girardi, Eduardo Augusto
[1]
;
Brandao, Andrea Dias
[2]
;
Coelho, Rubens Duarte
[3]
;
Zarate do Couto, Hilton Thadeu
[3]
;
Buckeridge, Marcos Silveira
[2]
;
Alves Mourao Filho, Francisco de Assis
[3]
Número total de Autores: 6
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Crop Sci, Piracicaba, SP - Brazil
[2] Univ Sao Paulo, Sao Paulo, SP - Brazil
[3] Univ Sao Paulo, Piracicaba, SP - Brazil
Número total de Afiliações: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Revista Brasileira de Fruticultura; v. 40, n. 6 2018. |
| Citações Web of Science: | 0 |
| Resumo | |
Drought tolerance is a major trait for the selection of citrus rootstocks in breeding programs. PEG 4000 solution at 110 g L-1 (osmotic potential of -376 kPa) was used to evaluate biometric, physiological, and biochemical responses of grafted citrus plants in pots. `Valencia' sweet orange plants grafted onto `Rangpur' lime (drought tolerant) rootstock showed greater plant growth compared to that on `Swingle' citrumelo (drought sensitive) rootstock, regardless of PEG-induced stress; however, biological responses to PEG were similar on both rootstocks. Plant dry weight, gas exchange, and leaf and root starch concentrations were reduced by PEG. Water potential at 2:00 p.m. and Fe and Mn leaf concentrations increased with severe phytotoxic symptoms. The results corroborate the limitation of PEG for assessing drought tolerance of citrus plants at the whole plant level. (AU) | |
| Processo FAPESP: | 06/01470-7 - Fisiologia da produção de mudas cítricas sob stresse hídrico |
| Beneficiário: | Eduardo Augusto Girardi |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 06/01469-9 - Fisiologia da produção de mudas cítricas sob estresse hídrico |
| Beneficiário: | Francisco de Assis Alves Mourão Filho |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |