Open AccessPhytoregulators and stem subdivision in the production of young forage palms (Opuntia ficus-indica and Nopalea cochellinifera)
Author(s) -
Wellington Silva Gomes,
Samy Pimenta,
Poliana Soares da Cruz Mascarenhas,
Luciana Cardoso Nogueira Londe,
Arles Matheus Pickler de Barros do Vale,
Suzane Ariadna de Souza,
Hélida Chisthine de Freitas Monteiro,
Bruno Rafael Alves Rodrigues,
Luciano de Souza Vespoli,
Osmer Balam
Publication year - 2020
Publication title -
australian journal of crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 44
eISSN - 1835-2693
pISSN - 1835-2707
DOI - 10.21475/ajcs.20.14.11.p2469
Subject(s) - forage , randomized block design , palm , horticulture , biology , completely randomized design , split plot , cutting , botany , mathematics , physics , quantum mechanics
The propagation of plants through stem subdivision and the incorporation of phytoregulators can be a viable and efficient technique in the large-scale production of young forage palm at a lower cost. This study was conducted in order to evaluate the influence of stem subdivision and phytoregulators on the production of young forage palms under greenhouse conditions. Three experiments (I, II and III) were performed. Experiments I and II consisted of young palm of the Miúda genotype, formed from fragmented stems submitted to solutions containing gradually increasing concentrations of benzylaminopurine (0,0; 0,5; 1,0 e 1,5 mg. L-1) and kinetin (0,0; 0,25; 0,5 e 0,75 mg. L-1) combined with naphthaleneacetic acid (1,5 mg. L-1). An additional control without the use of phytoregulators was also included. These treatments were distributed in a randomized block design (RBD), in a factorial scheme with the additional plot: 4 x 4 + 1. In experiment III, different sized fractions of four forage palm genotypes were tested: Gigante, Orelha de elefante, IPA Sertânia, and Miúda. For this test, the experimental design was RBD, with twelve treatments, distributed in five blocks with five plants per plot. There was no influence of phytoregulators on the characteristics evaluated in experiments I and II. Significant differences were found. However, for the variables length, width, and thickness of sprouts among treatments in experiment III. Therefore, the application of phytoregulators in young forage palms at the dosages used is not recommended. For the Gigante, Orelha de Elefante and Miúda genotypes, the fractional stem size recommended is 5x3 cm whereas for IPA Sertânia, the size recommended is 4x2 cm.