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Revista Chapingo serie ciencias forestales y del ambiente

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

Resumen

BRICENO-CONTRERAS, Edwin A. et al. Influence of temperature and irradiation on starch concentration in Carya illinoinensis K. Koch varieties Wichita and Western. Rev. Chapingo ser. cienc. for. ambient [online]. 2019, vol.25, n.3, pp.305-314.  Epub 19-Feb-2021. ISSN 2007-4018.  https://doi.org/10.5154/r.rchscfa.2018.12.089.

Introduction:

The pecan tree (Carya illinoinensis K. Koch) is a species native to northern Mexico and the Southeastern United States; the two countries dominate pecan production worldwide.

Objective:

To determine the influence of temperature and irradiation on the starch concentration in the root and trunk of C. illinoinensis varieties Wichita and Western.

Materials and methods:

Starch was quantified monthly during the July 2016 - June 2017 production cycle. Average monthly temperature and irradiation data were obtained from the INIFAP weather station at the La Laguna Experimental Field. Regression analyses were done using SPSS 18.0.

Results and discussion:

The Wichita and Western varieties showed a significant relationship (P < 0.05) between root starch concentrations and environmental factors; in the trunk, the relationship was not significant. In both varieties, the maximum starch concentration in the root is recorded when the temperature ranges from 15 to 20 °C, and the irradiation rate ranges from 10 to 15 MJ·m-2.

Conclusion:

The Wichita variety is the best adapted to high temperatures and irradiation rates in the Comarca Lagunera region.

Palabras llave : pecan tree; vegetative reserves; environmental factors; deciduous fruit tree; linear regression.

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