Emergence and initial growth of Hancornia speciosa (Gomes) seedlings with different substrates and water availability

Abstract

Hancornia speciosa is a promising fruit species due to the high protein content of its fruit. However, there is little information about its production, with a lack of information concerning the germination of its seeds and initial seedling growth. The aim of this study was to evaluate water availability and suitable substrates for its seedling emergence and production. The seeds were deposited in tubes, containing the following substrates: Distroferric Red Latosol (L); Latosol+Sand (L+A); Latosol+Bioplant  (L+B); Sand+Latosol+Poultry Litter in the following proportions 2:2:1 (L+A+C 1 ) and 2:4:1 (L+A+C 2 ) associated with water retention capacities of 25%, 50%, 75% and 100%. The substrates L+A, L+B and L and a water availability of 75% to 100% are recommendable for seedling emergence and early seedling growth. Substrates that consisted of poultry litter and water availability of 25% and 50% were prejudicial to growth and quality of Hancornia speciosa seedlings. RESUMO:A mangabeira é uma frutífera promissora em razão do alto conteúdo de proteínas de seus frutos. Entretanto, há poucas informações a respeito da produção dessa espécie, necessitando-se de informações referentes à germinação das sementes e ao crescimento inicial de plântulas. Assim, objetivou-se, com este trabalho, avaliar as disponibilidades hídricas e substratos adequados para emergência de plântulas e produção. As sementes foram depositadas em L podem ser recomendados para a emergência e crescimento inicial de plântulas de mangabeira nas disponibilidades hídricas de 75% a 100%. Substratos compostos por cama-de-frango e disponibilidades de água de 25% e 50% prejudicam o crescimento e a qualidade das mudas de mangabeira.Emergence and initial growth of Hancornia speciosa (Gomes) seedlings with different substrates and water availability Emergência e crescimento inicial de plântulas de Hancornia speciosa (Gomes) em diferentes substratos e disponibilidades hídricas

SUBSTRATES AND WATER AVAILABILITY ON THE EMERGENCE AND INITIAL GROWTH OF Alibertia sessilis Schum. SEEDLINGS

“…This result has been reported in the literature for other species, as this mixture presents materials that enable good porosity and drainage in their composition, which allow the movement of water and air in the substrate and favor the germination and emergence (FORNASIERI FILHO, 1992;SILVA et al, 2009;JEROMINE, 2013;GORDIN et al, 2016).…”

“…Gordin et al (2016) observed in their review that, as the leaf expansion is a process 520 FLORESTA, Curitiba, PR, v. 47, n. 4, p. 513 -522, out/dez. 2017.…”

“…Different substrate formulations have been used to produce seedlings, such as mixtures containing humus, carbonized rice hull, chicken manure, coffee husk, charcoal, and Plantmax ® JEROMINE, 2013;GORDIN et al, 2016). The poultry litter has been utilized in many regions where the broiler farming is well developed, which generates large availability of organic waste.…”

“…The cultivation and production of seedlings of native species in the Cerrado have encountered several problems, such as slow growth, basic information about their biology, forest utilization, management, cultivation treatments, and lack of awareness of their economic potential JEROMINE, 2013;NUNES et al, 2014, SCALON et al, 2015, GORDIN et al, 2016.…”

“…In the species Hancornia speciosa, the substrates dystroferric Red Latosol (Oxisol), Oxisol + sand (1:1) or Oxisol + Bioplant ® (1:1) can be recommended for the emergence and initial growth of plants in water availability from 75% to 100% of WHC (GORDIN et al, 2016). For the production of Campomanesia adamantium seedlings, the best substrate was the mixture of dystroferric Red Latosol (Oxisol) + sand + Bioplant ® (1:1:1 v/v) at 75% and 100% of the water holding capacity in the substrate .…”