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Revista mexicana de ciencias agrícolas

Print version ISSN 2007-0934


OSBORNE, Jason; PARRA-QUEZADA, Rafael A.; ROBINSON, Terence L.  and  ARREOLA-AVILA, Jesús G.. Flowering and chemical thinning increases fruit size and value of production Zee Lady peach variety. Rev. Mex. Cienc. Agríc [online]. 2014, vol.5, n.3, pp.353-365. ISSN 2007-0934.

In 2007, an experiment of flower and fruit thinning on peach was conducted in Nuevo Casas Grandes, Chihuahua, Mexico, in trees 5 years old, Zee Lady Variety, grafted onto the Bailey rootstock of seed. The variety 'Zee Lady' is used for fresh consumption. The treatments were the control without applying; severe pruning at the time of full bloom, hand fruit thinning spaced approximately 15 cm, 45 days after full bloom, soybean oil (SO) 8% applied about 25 days before flowering, ammonium thiosulfate (ATS) (3.5%, 5%), lime sulfur (LS) (1%, 3%) plus soybean oil (SO) (2%) applied at 20% bloom, lime sulfur (LS) (1%, 3%) plus soybean oil (2%) applied at 90% bloom; wilthin (0.5%, 0.75%) applied at full bloom. The results indicate that the hand thinning reduces fruit set to 14%. ATS (5%), LS (3%) plus SO (2%) at full bloom, and severe pruning treatments were most effective in reducing the burden of fruit on the tree. LS (1%) plus SO (2%) to 20% bloom or full bloom, severe pruning, or soybean oil produces larger fruits. Wilthin (0.5%) was smaller than the control fruits. LS (1%) plus SO (2%) to 20% bloom or full bloom, severe pruning, or soybean oil, ATS (3.5%), and Wilthin (0.75 %) generated the highest revenue in a range between $ 12 789.00 and $ 13 785.00 ha-1.

Keywords : burden of fruit; fruit quality; fruit size.

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