MINI-CUTTING OF Plathymenia reticulata Benth. WITH MINI-STUMPS CONDUCTED IN SUSPENDED SEED BED AND TUBES

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Giovanna Campos Mamede Weiss de Carvalho David Pessanha Siqueira Renata de Deus Silva Maria Kalyane Farias da Silva Deborah Guerra Barroso

Abstract

This work aimed to evaluate the rooting of mini-cuttings from juvenile materials of Plathymenia reticulata and we hypothesized: (1) keeping propagules under mist chamber for different periods affects the rooting process; (2) the mini-stump management system due to the restriction of the root system affects the production of mini-cuttings and the quality of clonal seedlings. Two experiments were carried out: In the first, 30 days after staking, 40 mini-cuttings were randomly selected for rooting assessment. Then, 50% of the survived mini-cuttings were sent to the greenhouse and the remained were kept in the mist chamber. Every ten days, mini-cuttings from each environment were evaluated for rooting up to 60 days after staking. It’s not necessary more that 30 days in a mist chamber to induce rooting. The highest percentage of rooting was obtained at 50 days of staking. In the second experiment, mini-gardens were set up in suspended seed bed and tubes (280 cm3), whose productivity was monitored monthly. The average productivity of all collections of mini-cuttings in suspended seed bed and tubes was of 4.32 and 2.06, respectively, during 270 days of exploration of the mini-gardens. At 120 days after staking, there was no difference in the survival and in the final quality of clonal seedlings produced. However, clonal seedlings from mini-garden in tubes had higher height, leaf area, and number of first-order roots. Regardless of the mini-garden management, the clonal seedling production index was 50%. We can conclude that P. reticulata seedling production via mini-cutting technique is possible.

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How to Cite
CARVALHO, Giovanna Campos Mamede Weiss de et al. MINI-CUTTING OF Plathymenia reticulata Benth. WITH MINI-STUMPS CONDUCTED IN SUSPENDED SEED BED AND TUBES. CERNE, [S.l.], v. 27, n. 1, p. e-102584, feb. 2021. ISSN 2317-6342. Available at: <http://cerne.ufla.br/site/index.php/CERNE/article/view/2584>. Date accessed: 01 mar. 2021.
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