Evaluación del prendimiento en el injerto de púa en almácigo de coffea arabica l. (café) híbrido h1, Finca “Mocá Grande” Santa Bárbara, Suchitepéquez.

SUMMARY Finca "Moca Grande" is one of the main producers of coffee in the southwestern region of Guatemala, on that farm has established Coffea a. Caturra varieties, Catimor, Catuai producing 6,000 kg/ha of coffee cherries. Furthermore it has established in the hybrid H1 plots being a cr...

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Main Author: Aguilar Chay, Fredy Anibal
Format: Tesis
Language: Español
Published: 2016
Subjects:
Online Access: http://www.repositorio.usac.edu.gt/6137/
http://www.repositorio.usac.edu.gt/6137/1/Documento%20de%20Graduacion%20Fredy.pdf
Summary: SUMMARY Finca "Moca Grande" is one of the main producers of coffee in the southwestern region of Guatemala, on that farm has established Coffea a. Caturra varieties, Catimor, Catuai producing 6,000 kg/ha of coffee cherries. Furthermore it has established in the hybrid H1 plots being a crossing of Sudan Rumen Sarchimor and variety from Costa Rica producing 6734.15 kg/ha of coffee cherries. The latter has proved to be more tolerant to diseases such as rust (H. vastatrix) ojo de gallo (M. citrocolor) affecting 25% of production to varieties, which require more maintenance cost than the hybrid H1. To keep production characteristics and disease tolerance arises the need to propagate asexually. In order to spread an investigation where engraftment spike was evaluated was established, for which the design was used randomized blocks in subdivided plots, established without propagator (natural environment), with rustic propagator Guatemala type with parafilm bandage and raffia violet, and as a stimulant for the arrest gibberellic acid 500 ppm/Lt; for that day they were measured brotacion engraftment and also monitoring of temperature (degrees Celsius) and relative humidity was. According to means tests, it was determined that treatment one (propagator, gibberellic acid and dressing parafilm) and treatment five (without propagator, gibberellic acid and bandage parafilm) have 70% of engraftment (500 grafted plants 350 plants is obtained lit) was flowed between 30 to 35 days after making the graft, also the temperature range 24 ° C to 30 ° C and relative humidity of 80 was established at 90%, this in conditions propagator without propagator respectively for engraftment spike in Coffea a. At 150 days settled a final field. Finally the cost analysis determines the technique to reproduce the hybrid H1, using tissue regulator, parafilm bandage without propagator (treatment five) the price per plant is Q8.13 and cost-benefit ratio of 10.59% for a quetzal invested 10 cents is obtained, so it is recommended to use the treatment five for the spread of hybrid H1.