El raleo químico en floración incrementa el tamaño del fruto y el valor de la producción en durazno variedad Zee Lady

Abstract

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 soybeanoil,ATS(3.5%),andWilthin(0.75%)generated the highest revenue in a range between $ 12 789.00 and $ 13 785.00 ha-1.