Growth and quality of mangosteen seedlings (Garcinia mangostana L.) in response to the application of humic acids

Abstract

The time of formation of mangosteen seedlings propagated by seeds can be considered as the biggest difficulty in the seedling production system of this species. Considering that the use of humic acids as a growth promoter has been well documented in some species, the objective of this work was to evaluate the growth of mangosteen seedlings in response to the application of humic acid (HA) doses extracted from vermicompost (0; 2; 20; 40; 200 mg C L-1). Growth rate was determined using the following variables: stem diameter, plant height, number of leaves, leaf area, stem dry matter, leaf dry matter, shoot dry matter, root dry matter, total dry matter and Dickson quality index . The dose 150 mg C L-1 was the one that approached the maximum values and therefore should be recommended for the production of seedlings. The results at 240 days after planting (DAP) showed that the HA increased the growth of mangosteen seedlings, helping to reduce the time of seedling formation under conditions for permanent planting.

Relationship Between Tree Height-Diameter at Breast Height (DBH) and Crown Diameter-DBH of Fruit Trees in Bogor Botanical Gardens

“…This behaviour was important because it allowed for estimating the survival and establishment of seedlings in the field. Similar to a previous study the variable DBH of G. mangostana serve as an alternative for evaluating the quality of this species growth [22].…”

Photosynthetic Performance, Nutrition and Growth of Campomanesia xanthocarpa O. Berg. in Chicken Manure Substrate and Liming

“…The DQI showed the same values as the other characteristics in the corrected substrate. This indicator has been used to evaluate the quality of seedlings in some fruit trees (Pereira et al, 2018;Gomes Júnior et al, 2019). The increase in DQI is a reflection of the biggest growth indicators (Fig.…”

Influence of the application of humic substances on the growth of watermelon and melon seedlings

“…Humic substances (HS) have been used to supply nutrients and/ or stimulate the production of phytohormones that lead to root growth that the plant would otherwise not achieve (El-Hai et al, 2019;Qin & Leskovar, 2020a;Soteriou et al, 2021). Previous studies have demonstrated the effect of humic substances as seedling growth modulators, among other beneficial effects (Gomes Júnior et al, 2019;Qin & Leskovar, 2020a;Silva et al, 2022;Targino et al, 2023).…”