Data/hora: 21/06/2024 00:08:00

Biblioteca(s): | Embrapa Rondônia.
Data corrente: | 15/03/2023
Data da última atualização: | 15/03/2023
Autoria: | KOLLN, A. M.; ESPINDULA, M. C.; ARAÚJO, L. F. B. de; CAMPANHARO, M.; ROCHA, R. B.; LOURENÇO, J. L. R.
Afiliação: | ALANA MARA KOLLN, INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DE RONDÔNIA; MARCELO CURITIBA ESPINDULA, CPAF-RO; LARISSA FATARELLI BENTO DE ARAÚJO, UNIR; MARCELA CAMPANHARO, UNIR; RODRIGO BARROS ROCHA, CPAF-RO; JOÃO LUIZ RESENDE LOURENÇO, EMBRAPA RONDÔNIA.
Título: | Influence of nitrogen fertilization in mother plants on the growth and quality of clonal seedlings of Coffea canephora 'Robusta' plants.
Ano de publicação: | 2022
Fonte/Imprenta: | Ciência Rural, v. 52, n. 9, 2022.
Idioma: | Inglês
Conteúdo: | The nutritional management of the coffee clonal garden influences the production and physiological quality and seedlings production of vegetative propagules. Thus, this study aimed to analyze the seedlings? production from clonal cuttings taken from Coffea canephora mother plants grown with increasing nitrogen mineral doses. The cuttings were taken from C. canephora var. botany Robusta, from the Embrapa Genetic Improvement Program of Rondônia. The mother plants received nitrogen fertilizer at different doses: 0 (Control); 50; 100; 150; 200; 250 and 300 kg of N per hectare divided into 4 applications, during 150 days of orthotropic stems growth (shoots). The following parameters were evaluated: Dry mass of cuttings, nutritional content of cuttings, and seedlings production, with growth analysis at 0, 48, 61, 80, 101, 122, 143, and 164 days after staking (DAS) and analysis of vegetative characteristics at 122 DAS. The nitrogen fertilization in the mother plant resulted in the variation of macronutrient accumulation in cuttings, but the order K> N> Ca> P> Mg> S was maintained, regardless of N dose. In addition, a positive correlation between nitrogen doses and dry matter accumulation, as well as the physiological quality of seedlings was identified.
Palavras-Chave: | Clonal garden; Cuttings; Mineral nutrition; Physiological quality.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152371/1/1-Alana-Kolln-Ciencia-Rural-2022.pdf
Registro original: | Embrapa Rondônia (CPAF-RO)
Exemplares: | CPAF-RO - (18929-1) - UPC - AP - DD -  -  -  - DIS