9 documents found, page 1 of 1
Intrinsic non-stomatal resilience to drought of the photosynthetic apparatus in...
JN; Rodrigues, Ana P.; Lidon, Fernando C.; P. Pais, Isabel; Marques, Isabel; Gouveia, Duarte; ARMENGAUD, Jean; Silva, Maria J.; Martins, SóniaGrowing water restrictions associated with climate changes constitute daunting challenges to crop performance. This study unveils the impacts of moderate (MWD) or severe (SWD) water deficit, and their interaction with air [CO2], on the photosynthetic apparatus of Coffea canephora Pierre ex A. Froehner cv. Conilon Clone 153 (CL153) and Coffea arabica L. cv. Icatu. Seven year-old potted plants grown under 380 (aC...
Diversity of leaf stomatal traits among Coffea canephora Pierre ex A. Froehner ...
Dubberstein, Danielly; Oliveira, Marcos Goes; Aoyama, Elisa Mitsuko; Guilhen, José Henrique; Ferreira, Adésio; Marques, Isabel; Ramalho, José C.Leaf morpho-anatomical characteristics directly reflect photosynthetic performance and the ability to adapt to different environmental conditions. The study of biometric traits is essential for the selection of promising plant materials for breeding purposes. To identify new varieties of coffee plants with desirable traits for genetic improvement programs, this study investigated the variability of leaf morpho-...
Resilient and sensitive key points of the photosynthetic machinery of coffea sp...
Dubberstein, Danielly; Lidon, Fernando C.; Rodrigues, Ana P.; Semedo, José N.; Marques, Isabel; Rodrigues, Weverton P.; Gouveia, Duarte; ARMENGAUD, JeanThis study unveils the single and combined drought and heat impacts on the photosynthetic performance ofCoffea arabicacv. Icatu andC. canephoracv. Conilon Clone 153 (CL153). Well-watered (WW) potted plants were gradually submitted to severe water deficit (SWD) along 20 days under adequate temperature (25/20 degrees C, day/night), and thereafter exposed to a gradual temperature rise up to 42/30 degrees C, follow...
Resilient and sensitive key points of the photosynthetic machinery of Coffea sp...
Dubberstein, Danielly; Lidon, Fernando C.; Rodrigues, Ana P.; Semedo, José N.; Marques, Isabel; Rodrigues, Weverton P.; Gouveia, Duarte; Armengaud, JeanThis study unveils the single and combined drought and heat impacts on the photosynthetic performance of Coffea arabica cv. Icatu and C. canephora cv. Conilon Clone 153 (CL153). Well-watered (WW) potted plants were gradually submitted to severe water deficit (SWD) along 20 days under adequate temperature (25/20°C, day/night), and thereafter exposed to a gradual temperature rise up to 42/30°C, followed by a 14-d...
Concentration and accumulation of micronutrients in robust coffee
Dubberstein, Danielly; Partelli, Fábio Luiz; Espíndula, Marcelo Curitiba; Dias, Jairo Rafael MachadoKnowledge on the dynamics of micronutrients in coffee tree assists nutritional diagnosis and fertilization management. Therefore, the objective of this study was to evaluate the concentration and accumulation of micronutrients in the leaves and fruits of Coffea canephora. The experiment was managed in crops propagated for 2.5 years in a split-plot-in-time scheme in which the main plots consisted of fertilized a...
Mitigation of the negative impact of warming on the coffee crop: the role of in...
Dubberstein, Danielly; Rodrigues, Weverton P.; Semedo, José N.; Rodrigues, Ana P.; Pais, Isabel P.; Leitão, António E.; Partelli, Fábio L.Crop sustainability can be threatened by new environmental challenges regarding predicted climate changes and global warming. Therefore, the study of real biological impacts of future environmental conditions (e.g., increased air [CO2], supra-optimal temperature and water scarcity) on crop plants, as well as the re-evaluation of management procedures and strategies, must be undertaken in order to improve crop a...
Seedlings formation of coffee clonal influenced by cuts basal and substrate
de Aquino, Lourena Pegorer; Schmidt, Raquel; Dubberstein, Danielly; Machada Dias, Jairo RafaelThis study aimed to evaluate substrates and types of basal cuts on stakes for the production of coffee clonal seedlings. The experiment was carried out in a greenhouse. The cuttings were obtained from the middle portion of standardized orthotropic branches. The experiment was a factorial 2x7 with two types of cuttings (basal cut straight and bevel) and seven substrates: soil, commercial, coffee straw, wood shav...
Influence of fertilization on coffee trees vegetative growth in west south Amazon
Dubberstein, Danielly; Partelli, Fabio Luiz; Dias, Jairo Rafael Machado; Espindula, Marcelo CuritibaThe standard of knowledge of coffee growth is fundamental to assist in the management of crop, due to the growth of seasonal occurrence throughout the year. The objective was to evaluate the vegetative branches growth of coffee located in South Western Amazon in fertilized and unfertilized plants. The trial was carried out in clonal tillage in a randomized block design with three replicates in time split plot. ...
Dry matter in fruits, leaves and plagiotropic branches of grown coffee trees in...
Dubberstein, Danielly; Partelli, Fabio Luiz; Schmidt, Raquel; Dias, Jairo Rafael Machado; Covre, André ManzoliDifferent factors may influence the accumulation of dry matter in the coffee, as the nutritional management and the phenological stage of the plant. This study aimed to assess the number of fruits and the dry matter content in fruits, leaves and reproductive branches of Coffea canephora, fertilized and unfertilized conditions in the Western Amazon. The experiment was conducted in clonal tillage with randomized ...