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Revista Chapingo serie ciencias forestales y del ambiente

versión On-line ISSN 2007-4018versión impresa ISSN 2007-3828


AVILA-ANGULO, María L. et al. Does fertilization hardening improve the morphometric and physiological characteristics of Pinus rudis Endl. seedlings?. Rev. Chapingo ser. cienc. for. ambient [online]. 2020, vol.26, n.1, pp.141-153.  Epub 03-Mar-2021. ISSN 2007-4018.


One strategy to improve plant quality is fertilization hardening, which promotes the accumulation of nutrients.


To evaluate hardening in Pinus rudis Endl. plants with different levels of phosphorus (P), potassium (K) and soluble fertilizer (SF) in irrigation.

Materials and methods:

A completely randomized design was used to test levels 0, 50 and 100 % higher than the basic dose of P, K and SF (Peters Professional® 4-25-35 of N, P and K, respectively); the effect was measured in plant morphometry and nutrient content. An analysis of variance and mean separation was performed with Tukey’s test (P < 0.05). Changes in nutrient accumulation in plants were detected by graphical vector analysis.

Results and discussion:

Ten months after the hardening process, the seedlings had a root collar diameter of 4.8 to 5.5 mm, aerial dry weight of 4.2 to 4.4 g and root dry weight of 1.1 to 1.2 g. The doses of P, K and FS did not affect the morphometry of the plant, but did affect the concentration of nutrients. Vector analysis detected luxury nutrient consumption in the order P > N > K. The highest nutrient contents were achieved with SF at a level of 100 % above the basic dose (4-25-35).


Hardening of P. rudis plants is possible through fertilization management. The process led to additional reserves in the foliage.

Palabras llave : vector analysis; plant quality; luxury consumption; forest nutrition; phosphorus.

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