Evaluation of the quality of Pinus montezumae lamb. seedlings produced in the San Luis Tlaxialtemalco nursery, Federal District
DOI:
https://doi.org/10.35197/rx.01.01.2005.11.NBKeywords:
Pinus montezumae Lamb., calidad de brizal, envases rígidos de plástico y sobrevivenciaAbstract
This research was conducted in the Milpa Alta Delegation, Mexico City, with the purpose of evaluating the field behavior of the morphological quality of Pinus montezumae Lamb. saplings, produced in the San Luis Tlaxialtemalco Nursery, Mexico City. The evaluated treatments were 2 morphological qualities of saplings (high quality and low quality), each of which consisted of 12-month-old saplings, which were randomly selected from the total production of the nursery, taking as the sole classification criterion the stem diameter; that is, high quality was comprised of saplings with diameters greater than 6 mm and low quality by saplings with diameters less than 6 mm, said saplings were subsequently evaluated through a field analysis. The field analysis was carried out after having established the saplings in the field, in 3 sites with contrasting characteristics (altitude, exposure, slope and humidity); Survival was the variable evaluated, which was recorded for 12 months, in three different periods (frost, drought and rain). The results of the field analysis indicated that the best treatment was the high quality, since it presented the highest survival in the field (83.82%). The above behavior also allows us to point out that the stem diameter is directly proportional to survival in the field, making it an excellent criterion to evaluate the quality of the sapling in the nursery.
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Copyright (c) 2005 Noé Bautista Zarco, Víctor Manuel Cetina Alcalá, José Amando Gil Vera Castillo, Cuauhtémoc Tarcicio Cervantes Martínez
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