(230) Effect of Five Doses of Indole Butyric Acid on the Aerial Layer Induction Root of Litchi

Abstract

We evaluated the effect of five doses (0, 500, 1000, 5000, and 10,000 ppm) of indole butyric acid (IBA) on the aerial layer induction root of Litchi (Litchi chinensis Sonn.). The experiment was conducted in the coastal zone of Tecoman, Colima, Mexico, at the La Perla farm (18°15'N; 103°52'W and 33 m above sea level). The ambient conditions were dry tropics with an average yearly rainfall of 710 mm and 26 °C annual medium temperature (BS1). The evaluated variables were: 1) the number of roots emitted by layer, and 2) percentage of layers taken root by treatment. The experiment was carried out under a randomized block arrangement. We used five treatments with 12 repetitions, considering one tree to be a block, in which five treatments were effected with four repetitions into every one tree utilized. Results of Duncan's test averaged 5%. The results obtained indicated that dose of 500 ppm was the best IBA level as the percentage of layers taken root by treatment (96.7%). They are statistically different.