Data/hora: 09/06/2024 22:26:38

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 31/07/1992
Data da última atualização: | 31/07/1992
Autoria: | HUANG, T-B.; DARNELL, R. L.; KOCH, K. E.
Afiliação: | Fruit Crops Department, University of Florida, Gainesville, FL 32611-0511.
Título: | Water and Carbon Budgets of Developing Citrus Fruit.
Ano de publicação: | 1992
Fonte/Imprenta: | J. Amer. Soc. Hort. Sci., v.117, n.2, p.287-293, 1992.
ISSN: | 0003-1062
Idioma: | Inglês
Conteúdo: | Water and carbon budgests of individual citrus fruit were determind throughout their growth to quantify the demand for sucrose and water relative to developmental changes. Fruit transpiration, water accumulation, photosynthesis, respiration, and C gain were measured during this period for grapefruit (Citrus paradisii Macf.) and calamondin (Citrus madurensis Lour.). On a whole-fruit basis, estimated rates of grapefruit transpiration and mean daily water inflow decreased after the first third of development, whereas water water apparentlv was lost freely thoughout growth of the smaller, thin-peeled calamondins. Estimates of daily fruit C impot remained relatively similar during the majority of grapefuit growth, increasing rapidly only as fruit neared maturation.A similar trend was observed in calamondins, although rates were more variable. Overall, estimated mean daily water inflow into developing grpefruit decreased relative to that of sucrose inflow, resulting in a progressively higher ratio of transport to net water inflow. Values for these ratios rose from aproximadamente 10 to > 300 g sucrose/liter of water, reaching levels of net water and sugar transfer that could both be accommodated by citru phloem alone. Any additional entry into grapefruit appears to have been offset xylem back-flow, because no other net water influx was observed.
Palavras-Chave: | Citrus madurenseis; fotosintese; polem; translacao; transpiracao.
Thesagro: | Citrus Paradisi; Respiração.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)

Exemplares:

CNPMF - (1939-1) - ADC - AP - -- - 635.05 -  - 635.05 - DIS
CNPMF - (2971-1) - ADC - AP - -- - 635.05 -  - 635.05 - DIS