Initial growth and physiological indexes of Fig accessions in active germoplasm bank

Abstract

Fruit growing has become an important alternative economic strategy for the social reproduction of small rural producers. Fig (Ficus carica L.) is a fruit of great world importance, and can be used as a new source of agricultural variability, adding advantages, both economically and socially. In addition, the characterization of active germplasm banks of the genus Ficus becomes an important research line for culture improvement, and it is necessary to gather information, mainly in relation to its genetic variability, so that adequate propagation and management projects are carried out. Therefore, the aim of this work was to establish and characterize an active germplasm bank of fig tree by means of the morphophysiological descriptors of 45 fig accessions, with a randomized complete block design at the Faculty of Agrarian and Technological Sciences, Campus of Dracena, FCAT / UNESP. To do so, the biometric features of re-growth, relative growth rate, plant height and morphophysiological characteristics of the best performance accessions during their vegetative development were evaluated. It could be concluded that most accessions presented good adaptation to the implantation region, especially accessions 18; 28; 29; 30 and 31, which were more promising.

Phenology, vegetative growth, and yield performance of fig in Southeastern Brazil

“…Dalastra et al (2009) reported that four-yearold plants pruned in August showed a mean branch length of 128.43 cm at the end of the cycle. In turn, Rodrigues et al (2019a) evaluated one-year-old plants, and found higher lengths for 'Roxo de Valinhos' (101 cm), Troyano (100 cm), and White Genova (93 cm) than PI-189 (71 cm). These differences can be attributed to climatic and cultivation conditions during plant growth, as well as to genetic factors and plant age.…”

Agronomical and quality differences of four fig cultivars grown in Brazil

“…The great vegetative vigor observed in 'Troyano' and 'White Genova' emphasizes the need for continuous follow up examinations of these cultivars at different planting densities. Rodrigues et al (2019a) considered moderated vegetative growth in 'Roxo de Valinhos', 'White Genova' and 'Troyano', while 'Troyano' (Figure 2B). According to Cantuaria-Avilés, Mourão, Stuchi, Silva and Nunez (2010), there is a negative correlation to some extent between productive efficiency and canopy volume.…”

Selection of desirable characters for papaya genetic improvement programs associated with hydric and thermal stress

“…Growth analyses are used to explain differences in plant growth due to genetic or environmental changes (Rodrigues et al, 2019) and can be associated with physiological indices to identify morphophysiological conditions influenced by biotic and abiotic factors (Fontes et al, 2005). Multivariate statistical analyses are important for understanding the genetic relationships between morphophysiological characteristics and genetic materials and the variability of germplasm collections.…”