Trocas gasosas e potencial hídrico no desenvolvimento inicial de cultivares apirênicas de citros
| العنوان: | Trocas gasosas e potencial hídrico no desenvolvimento inicial de cultivares apirênicas de citros |
|---|---|
| المؤلفون: | Silva, Elisângela Aparecida da |
| المساهمون: | Ferreira, Ester Alice, Ramos, José Darlan, Silva, Vânia Aparecida, Chalfun, Nilton Nagib Jorge, Bastos, Débora Costa |
| بيانات النشر: | UNIVERSIDADE FEDERAL DE LAVRAS DAG - Programa de Pós-graduação UFLA BRASIL |
| سنة النشر: | 2012 |
| المجموعة: | Repositório Institucional da Universidade Federal de Lavras (RIUFLA) |
| مصطلحات موضوعية: | Citrus sinensis (L.) Osbeck, Citrus reticulata (Blanco), Caracterização fisiológica, Physiological characterization, Laranja - Cultivo, Tangerina - Cultivo, Fisiologia vegetal, Plant physiology, Frutas cítricas, Citrus fruits, CNPQ_NÃO_INFORMADO |
| الوصف: | Tese apresentada à Universidade Federal de Lavras, como parte das exigências do Programa de Pós-Graduação em Agronomia/Fitotecnia, área de concentração em Produção Vegetal, para a obtenção do título de Doutor. ; Fundação de Amparo à Pesquisa do Estado de Minas Gerais - FAPEMIG ; Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq ; Produção Vegetal ; Little information about the behavior of seedless cultivars of citrus in Brazil and in the conditions of Minas Gerais, these do not exist. Considering the market demand and in view of the need to extend the offer period of oranges and tangerines for fresh consumption, introduction and recommendation of new alternatives to diversify the citrus industry in Southern Minas are necessary. Therefore, this research aimed to study the behavior of physiological data seedless cultivars and mandarin orange. The experiments were conducted at Agricultural Research Corporation of Minas Gerais. In the field experiment, we investigated the behavior of seasonal varieties of seedless mandarin considering gas exchange of cultivars. In the greenhouse, orange cultivars subjected to drought, were studied as to predawn leaf water potential and midday and as gas exchange. In the initial cultivation of mandarin 'Clemenules' hydrogel was used, analyzing the responses of plants as gas exchange and water potential predawn and midday. The mandarin ‘Okitsu’ showed stomatal sensitivity in conditions of high evaporative demand of the atmosphere of summer. The mandarin ‘Ortanique’ was sensitive to low temperature in autumn and ‘Clemenules’ showed higher photosynthetic rate this season. There was no significant difference between orange cultivars on the water potential when submitted to drought conditions studied. As for gas exchange, water deficit caused a reduction of photosynthetic rate by stomatal limitation in all cultivars and for cultivar 'Lanelate' maintaining the Ci/Ca ratio also suggests not stomatal limitations of photosynthesis. The hydrogel allows greater maintenance of ... |
| نوع الوثيقة: | other/unknown material |
| وصف الملف: | application/pdf |
| اللغة: | Portuguese |
| العلاقة: | SILVA, E. A. da. Trocas gasosas e potencial hídrico no desenvolvimento inicial de cultivares apirênicas de citros. 2013. 73 p. Tese (Doutorado em Fitotecnia) - Universidade Federal de Lavras, Lavras, 2012.; http://repositorio.ufla.br/jspui/handle/1/621Test |
| الإتاحة: | http://repositorio.ufla.br/jspui/handle/1/621Test |
| رقم الانضمام: | edsbas.1C885674 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |