RT info:eu-repo/semantics/article
T1 Linking the effects of nursery light and fertilization and post-transplant first summer irrigation on the field survival and growth of Pinus pinaster seedlings
A1 Al Pavel, Muha Abdullah
A1 Bravo Oviedo, Felipe
A1 Ordóñez Alonso, Ángel Cristóbal
A1 Rodríguez García, Encarna
K1 Forest restoration
K1 Light regime
K1 Nitrogen fertilization
K1 Post-planting watering
K1 Survival
K1 Seedling functional traits
K1 24 Ciencias de la Vida
K1 31 Ciencias Agrarias
AB Seedling size-related functional attributes of Mediterranean forest species are critical traits to be considered in nursery practices aimed at improving the survival and performance of seedlings exposed to summer drought in dryland reforestation projects. We looked at how nursery light regimes and nitrogen fertilization affected the survival and performance of Pinus pinaster Ait. under contrasting post-planting watering regimes. Seedlings grown in the nursery for 13 months were given low or high nitrogen doses and exposed to three light regimes (full sun, medium light and low light). After outplanting, half of the seedlings were watered fortnightly during the hottest months of the first summer and the other half were left unwatered. Seedling size-related variables (shoot height, basal diameter, stem volume and sturdiness quotient) were measured at the beginning and at the end of the study, and summer drought survival was checked three times. Our results showed that fertilization and the nursery light regime influenced initial seedling quality and transplant stress. Post-planting first summer watering also increased seedling survival probability. The medium-light and especially the full-sunlight regimes in the nursery decreased the probability of seedling mortality after outplanting. However, a low-light regime in the nursery negatively affected plant traits and increased the probability of post-planting seedling mortality. In comparison with low-N seedlings, high-N fertilization increased post-planting stress (evaluated in the change of sturdiness quotient after one field growth season), but did not affect survival.
PB Springer
SN 0169-4286
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/59465
UL https://uvadoc.uva.es/handle/10324/59465
LA eng
NO New Forests, 2023.
NO Producción Científica
DS UVaDOC
RD 28-nov-2024