Size of Containers in the Production of Flamboyant Seedlings

Abstract

The size of the container can affect the quality of the seedlings and, there is no recommendation of containers for the formation of flamboyant seedlings [Delonix regia (Bojerex Hook.) Raf]. Thus, the objective of this study was to evaluate the production of flamboyant seedlings in different container sizes, besides performing trail analysis to identify the growth variables that characterize the quality of these seedlings. The experimental design was a randomized block design with seven container sizes (13 × 13 cm, 15 × 15 cm, 13 × 20 cm, 15 × 25 cm, 17 × 22 cm, 17 × 30 cm or 30 × 40 cm), with four replicates. Each experimental unit was composed of five containers, totaling 20 containers per treatment. The plant height, stem base diameter, number of leaves and the sturdiness quotient were measured at 20, 40, 60, 80 and 100 days after emergence (DAE), and at 100 DAE were also measured the root volume, root dry matter, shoot dry matter, total dry matter, shoot/root dry matter ratio and Dickson quality index (DQI). The flamboyant seedlings have better grow when cultivated in polyethylene bags with size of 30 × 40 cm. The collar diameter, root volume, root dry matter, shoot dry matter and total dry matter are the most adequate variables to indicate the quality of flamboyant seedlings. However, because it is a rapid, simple and non-destructive measurement variable, the root collar diameter is more adequate to identify high-quality flamboyant seedlings.

Determination of physical properties and viability in different colors of Pueraria seeds

“…Both linear and geometric variations demonstrate the decorating effects of several factors, whether environmental, nutritional, physiological, or genetic. According Revista Agrogeoambiental, v.14, e20221659, 2022 to Silva et al (2011), deviations in the symmetry of plant structures with bilateral structures, such as leaves and seeds, occur due to the inability of individuals to contain environmental or genetic variations during their development. In seeds, the results of these genetic and environmental factors, depending on the stage of fruit development, can be biometric oscillations in width, length, and thickness (PONTES et al, 2018a).…”