IAL   21557
INSTITUTO DE AGROBIOTECNOLOGIA DEL LITORAL
Unidad Ejecutora - UE
artículos
Título:
Rooting of Prosopis alba mini-cuttings
Autor/es:
DE SOUZA, J. C. A. V., ; BENDER, A.; TIVANO, J. C. ; BARROSO, D. G.; MROGINSKI, L. ; VEGETTI, A. C. ; FELCKER, P.
Revista:
NEW FORESTS
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2014 vol. 45 p. 745 - 752
ISSN:
0169-4286
Resumen:
Mesquite (Prosopis alba Grisebach), an important species in arid and semiaridregions, is currently commercially propagated by seeds and so there is great interest indeveloping techniques for species propagation, domestication and improvement. Cloningthrough mini-cuttings is a new and promising technique for the production of clonalseedlings of forest species. The main objective of this work was to evaluate vegetativepropagation using the mini-cutting technique and indolebutyric acid (IBA) at differentconcentrations (0, 3,000, 4,500, 6,000 and 7,500 mg L-1) on rooting of P. alba clones.Rooting was achieved in 98?100 % of the mini-cuttings at all concentrations tested.Increasing IBA concentration resulted in an increase in the number of leaves and leaflets,as well as in fresh matter weight and number and length of roots of clone seedlings, until anoptimum point (between 3480 and 4800 mg L-1) was reached. Plants were also vegetativelypropagated in the field via conventional clonal garden cuttings under the samerooting conditions to compare the efficiency of the two propagation techniques. Minicuttingsshowed higher rooting and survival percentages than cuttings. A correlationanalysis conducted between characteristics of stock plants (height, diameter, number ofshoots) and shoots (height, diameter) showed a positive correlation between rooting andheight of shoots with total root length, leaflet number, and height of clonal seedlings. Wepropose the mini-cutting technique as a tool for P. alba cloning.