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Respostas fisiológicas e bioquímicas de macieiras sob lâminas de irrigação no semiárido brasileiro
- Source :
- Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice), Empresa Brasileira de Pesquisa Agropecuária (Embrapa), instacron:EMBRAPA, Ciência e Agrotecnologia, Vol 44 (2020), Scopus, Repositório Institucional da UNESP, Universidade Estadual Paulista (UNESP), instacron:UNESP, Ciência e Agrotecnologia v.44 2020, Ciência e Agrotecnologia, Universidade Federal de Lavras (UFLA), instacron:UFLA
- Publication Year :
- 2020
-
Abstract
- Made available in DSpace on 2021-06-25T10:24:45Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01. Added 1 bitstream(s) on 2021-07-15T15:04:37Z : No. of bitstreams: 1 S1413-70542020000100238.pdf: 700873 bytes, checksum: 8bb117bd81425c0ea12db2dd5cceec2b (MD5) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) The present study evaluated the physiological and biochemical parameters of apple trees under different irrigation water depths in a semiarid region of Brazil. The experiment had a split-plot randomized block design. Irrigation levels (60, 80, 100, and 120% of the reference evapotranspiration-ET0) and two apple cultivars (Julieta and Princesa) were analysed in the experimental plots and the phenological stages (vegetative, flowering and fruiting) were analysed in the experimental subplots. The physiological characteristics evaluated included the chlorophyll index, relative water content, net photosynthesis, stomatal conductance, transpiration, internal CO2 concentration, leaf temperature and instant carboxylation efficiency. The biochemical characteristics evaluated included the leaf contents of reducing sugars, total soluble sugars, and non-reducing sugars and proteins. The best biochemical responses were observed in the Princesa cultivar under 80% ET0 during the flowering and vegetative stages and under 120% ET0 during the fruiting stage. The best physiological responses for all phenological stages were observed under irrigation levels of 120% ET0 for both cultivars. The cv. Princesa demonstrated osmotic adjustment under water stress conditions during the phenological stages evaluated. Universidade Estadual Paulista “Júlio de Mesquita Filho”/Unesp Empresa Brasileira de Pesquisa Agropecuária/EMBRAPA Embrapa Semiárido Universidade Federal do Vale do Sao Francisco/UNIVASF Universidade Estadual Paulista “Júlio de Mesquita Filho”/Unesp
- Subjects :
- 0106 biological sciences
Irrigation
Stomatal conductance
Agriculture (General)
physiological stages
Randomized block design
Soil Science
gas exchange
Biology
Parâmetros fisiológicos
01 natural sciences
S1-972
Profundidades de água
Evapotranspiration
Gas exchange
Cultivar
Water content
Malus domestica [Index terms]
leaf carbohydrates
Transpiration
General Veterinary
Apples
Phenology
fungi
food and beverages
04 agricultural and veterinary sciences
Parâmetro bioquímicos
Maçã
Horticulture
Leaf carbohydrates
Malus domestica
040103 agronomy & agriculture
0401 agriculture, forestry, and fisheries
Animal Science and Zoology
Macieira
Physiological stages
Agronomy and Crop Science
Irrigação
010606 plant biology & botany
Food Science
Subjects
Details
- Language :
- English
- ISSN :
- 14137054
- Database :
- OpenAIRE
- Journal :
- Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice), Empresa Brasileira de Pesquisa Agropecuária (Embrapa), instacron:EMBRAPA, Ciência e Agrotecnologia, Vol 44 (2020), Scopus, Repositório Institucional da UNESP, Universidade Estadual Paulista (UNESP), instacron:UNESP, Ciência e Agrotecnologia v.44 2020, Ciência e Agrotecnologia, Universidade Federal de Lavras (UFLA), instacron:UFLA
- Accession number :
- edsair.doi.dedup.....005c69162d2121a5e1cba968f4b1e733