Data/hora: 16/06/2024 20:30:40

Biblioteca(s): | Embrapa Hortaliças; Embrapa Unidades Centrais.
Data corrente: | 28/02/2000
Data da última atualização: | 25/02/2019
Autoria: | FONTES, P. C. R.; SAMPAIO, R. A.; FINGER, F. L.
Afiliação: | PAULO CEZAR REZENDE FONTES, Universidade Federal de Viçosa - UFV/DFT; REYNALDO ARRUDA SAMPAIO, Universidade Federal de Rondônia - UFR/Departamento de Fitotecnia - DFT; FERNANDO LUIZ FINGER, Universidade Federal de Viçosa - UFV/Departamento de Fitotecnia - DFT.
Título: | Fruit size, mineral composition and quality of trickle-irrigated tomatoes as affected by potassium rates.
Ano de publicação: | 2000
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 35, n. 1, p. 21-25, jan. 2000.
Idioma: | Inglês
Notas: | Título em português: Tamanho, composição mineral e qualidade de frutos de tomateiro irrigado por gotejamento em razão de doses de potássio.
Conteúdo: | An experiment was conducted to determine the fruit size, mineral composition and quality of trickle-irrigated tomatoes as affected by potassium fertilizer rates. Six potassium (K) rates were applied as KCl, corresponding to 0, 48.4, 118.6, 188.8, 259.0 and 399.4 kg ha -1 , with four replicates, following a randomized block design. Quadratic responses to K rates were observed for double extra large (diameter > 60 mm), extra large (56 to 60 mm) and large (52 to 56 mm) fruit yields. Maximum yields of these classes were achieved with K rates of 116, 190 and 233 kg ha -1 , respectively. Fruit dry matter, phosphorus, sulfur and magnesium contents were not affected by K rates, but nitrate and K contents showed significant increments as K rates were increased. Vitamin C, total soluble solids, lycopene and ? -carotene contents in the fruits were not affected by K rates. Increments in the K rate lowered the fruit pH and increased total acids content.
Palavras-Chave: | Composicao mineral; Licopeno; Mineral composition; Quality; Size; Solido soluvel; Soluble solids; Trickle irrigation.
Thesagro: | Acidez; Irrigação por Gotejamento; Lycopersicon Esculentum; Potássio; Qualidade; Solido; Tamanho; Tomate.
Thesaurus Nal: | acidity; lycopene; potassium; solids; tomatoes.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/16764/1/pab98_091.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)

Exemplares:

AI-SEDE - (16764-1) - UPE - AP - PP - 630.72081 - P474 - AP - DIS
CNPH - (17992-1) - EMB - AP - -- -  -  - 630.5 - DIS