TY - JOUR
T1 - Evaluación de diferentes alternativas para la producción de brotes de palto (Persea americana)
AU - Castro, Mónica
AU - Fassio, Claudia
AU - Darrouy, Nicole
AU - Aedo, Marcela
AU - Jorquera, Lorena
PY - 2011
Y1 - 2011
N2 - In Chile, most avocado orchards have been planted using 'Hass' as the scion variety on seedling rootstocks. This has led to the presence of a large variety of individuals, some of which show, among other characteristics, high productivity and a low degree of biennial bearing cycle in the same growing conditions. The most common method used in other countries to propagate such rootstocks from trees involves severe topping; however, this technique is notably destructive, making it difficult to employ in commercial orchards. With the goal of developing alternate methods for forcing shoot production from the rootstock, we tested two different procedures in July 2002 and March 2003, respectively: wounding in conjunction with the application of 1.1 M or 2.2 M benzylaminopurine (BAP) and the removal of one half of the tree canopy (on a vertical plane) and girdling (at widths of 2 or 5 mm). The results indicate that, by removing the top layer of the soil, wounding and applying the BAP spray (1.1 M in July), it is possible to force the production of epicormic or basal sprouting from the rootstock. Additionally, vigorous shoots were obtained on both evaluation dates through the removal of half of the canopy or through girdling.
AB - In Chile, most avocado orchards have been planted using 'Hass' as the scion variety on seedling rootstocks. This has led to the presence of a large variety of individuals, some of which show, among other characteristics, high productivity and a low degree of biennial bearing cycle in the same growing conditions. The most common method used in other countries to propagate such rootstocks from trees involves severe topping; however, this technique is notably destructive, making it difficult to employ in commercial orchards. With the goal of developing alternate methods for forcing shoot production from the rootstock, we tested two different procedures in July 2002 and March 2003, respectively: wounding in conjunction with the application of 1.1 M or 2.2 M benzylaminopurine (BAP) and the removal of one half of the tree canopy (on a vertical plane) and girdling (at widths of 2 or 5 mm). The results indicate that, by removing the top layer of the soil, wounding and applying the BAP spray (1.1 M in July), it is possible to force the production of epicormic or basal sprouting from the rootstock. Additionally, vigorous shoots were obtained on both evaluation dates through the removal of half of the canopy or through girdling.
KW - Avocado
KW - Basal sprout
KW - Cloning
KW - Cytokinin
KW - Epicormic sprout
KW - Girdling
KW - Rootstock
UR - http://www.scopus.com/inward/record.url?scp=80052766490&partnerID=8YFLogxK
U2 - 10.4067/S0718-16202011000200007
DO - 10.4067/S0718-16202011000200007
M3 - Article
AN - SCOPUS:80052766490
VL - 38
SP - 219
EP - 226
JO - Ciencia e Investigacion Agraria
JF - Ciencia e Investigacion Agraria
SN - 0304-5609
IS - 2
ER -