Variability in seedling water status during drought within a Quercus ilex subsp. ballota population, and its relation to seedling morphology

Leiva, María José; Fernández-Alés, Rocı́o

doi:10.1016/s0378-1127(98)00320-x

Cited by 65 publications

(45 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…4), this occurring only in the field experiment. This contrasts with the results reported by Leiva and Fernández-Alés [19] and Lloret et al [20]. On the other hand, it coincides with the findings of Valdecantos et al [40,42] and VillarSalvador et al [47], who found greater increases in shoot biomass, in Q. ilex seedlings which were fertilized or were grown in soil amended with organic matter, without detriment to root weight.…”

Section: Discussionsupporting

confidence: 80%

See 1 more Smart Citation

Direct sowing of holm oak acorns: effects of acorn size and soil treatment

et al. 2006

View full text Add to dashboard Cite

-A nursery experiment under optimal controlled conditions and a parallel field trial under conditions of severe water stress were conducted to test the influence that acorn size and soil preparation (only in field) exert on the survival and development of this species. The soil preparation consisted of preparing seed beds with a backhoe. The size and weight of the acorn were the factors that most controlled the development of this species in the nursery, while in the field, under conditions of water stress, only acorn weight was related negatively to the root:shoot ratio. Water availability was also found to be a strongly limiting factor for plant development, when the results of the two experiments were compared. In the field, the prior soil preparation negatively affected survival (65%) with respect to control (95%), RCD and R/S ratio. In conclusion, given the low precipitation during the study period and the low survival results reported by other researchers with the introduction of seedlings, even in higher-rainfall localities, sowing acorns directly in the field should be reconsidered as a viable technique for restoring holm oak forests, for forestation on agricultural lands, or the diversification of forest species on a large scale at low costs.Quercus ilex subsp. ballota / acorn / soil treatment / abandoned agricultural land Résumé -Semis directs des glands de chênes : effet de la grosseur des glands et du traitement du sol. Un essai en pépinière en conditions contrôlées optimales et un autre essai en plein champ en conditions de stress hydrique sévère pour le chêne ont été menés pour tester l'influence que la grosseur des glands et la préparation du sol (seulement au champ) exercent sur la survie et le développement de cette espèce. La préparation du sol a consisté en un poquet réalisé avec un retroexcavateur. La grosseur et le poids du gland ont été les facteurs qui ont provoqué le développement plus important de cette espèce en pépinière. Néanmoins, en plein champ, dans des conditions de stress hydrique seul le poids du gland a permis d'établir une corrélation négative avec le rapport racine/pousse. La disponibilité en eau a été un facteur extrêmement limitant pour le développement des plants, si on compare les résultats des deux expérimentations. Au champ, la préparation du terrain a influencé d'une manière négative la survie (65 %) par rapport au témoin (90 %), au diamètre des plants et au rapport racine/pousse. En conclusion, compte tenue des faibles pluies tombées pendant la période d'étude et des résultats de faible survie obtenus par d'autres auteurs avec l'introduction de semis, même dans des régions de pluviométrie plus abondante, le semis direct de glands au champ doit être repensé en tant que technique viable pour la restauration des forêts de chêne, le reboisement des terres agricoles et la diversification à grande échelle des espèces forestières et à moindre coût.Quercus ilex subsp. ballota / gland / traitement du sol / terre agricole abandonnée

show abstract

Section: Discussionsupporting

confidence: 80%

“…SB (F (1,19) = 32.9, P = 0.0000), LB (F (1,19) = 28.8, P = 0.0001) and TB (F (1,19) = 32.5, P = 0.0000). However, no significant differences were found with respect to FB, R:S ratio, or tap-root length, which reached a mean of 1.46 ± 0.10 m in depth.…”

Section: Nursery Experimentsmentioning

confidence: 96%

Direct sowing of holm oak acorns: effects of acorn size and soil treatment

et al. 2006

View full text Add to dashboard Cite

show abstract

“…Low S/R and small shoot sizes have been considered drought resistance traits (Leiva and Fernández-Alés, 1998; Lloret et al, 1999). However, we found that holm oak seedlings with the largest shoots and with a higher S/R had lower mortality and larger growth than those with the opposite attributes.…”

Section: Field Performance and Its Relationship With Plant Attributesmentioning

confidence: 61%

“…However, high N fertilisation can reduce drought tolerance (Tan and Hogan, 1995) and root biomass, and it increases leaf area, shoot size and the shoot-root mass ratio (S/R) (Canham et al, 1996;Graff et al, 1999;Berger and Glatzel, 2001). It can be expected that the seedlings that exhibit these attributes may be more vulnerable to water stress than the seedlings with the opposite traits (Leiva and Fernández-Alés, 1998). For instance, water status and survival among woody Mediterranean species has been negatively related with the S/R (Lloret et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Nursery cultivation regimes, plant functional attributes, and field performance relationships in the Mediterranean oak Quercus ilex L.

Villar-Salvador

Planelles

Enríquez

et al. 2004

Forest Ecology and Management

178

138

View full text Add to dashboard Cite

In this study we have addressed the effect of nitrogen fertilisation and shading used during nursery growth on the functional quality of Quercus ilex L. (holm oak) seedlings and their outplanting performance in an abandoned continental Mediterranean cropland. Three N fertilisation regimes: high and low fertilisation (154 and 34 mg N per plant, respectively) and no fertilisation, combined with two shade levels (full sun and 45% shade) were studied. Fertilisation increased the shoot size, shoot to root mass ratio (S/R), root N, and both shoot and root P concentration of the plants produced in the nursery. Fertilisation also enhanced the capacity of new root formation. Neither tissue K nor root mass was affected by N fertilisation. Shading increased S/R and root K concentration but reduced both shoot and root N concentration. Two years after planting, unfertilised seedlings had higher mortality and grew significantly less than those cultivated at both a low and a high fertilisation level. Shading during nursery growth had no influence on the outplanting performance of holm oak seedlings. Plants with a larger shoot and higher S/R had lower mortality and grew faster than those with a smaller shoot and lower S/R. Outplanting performance of holm oak seedlings was related with root N and P concentration and with RGC. No relationship was found with either shoot nutrient concentration or root mass. We conclude that high N fertilisation of holm oak seedlings in the nursery can improve their early field establishment in the afforestation Mediterranean abandoned croplands. #

show abstract

“…When RDW is high, field survival at the time of transplant is higher, as the greater number of roots guarantees better absorption of water and nutrients that favor the growth of the plant. Moreover, plants with less SDW/ RDW can maintain a better water status with more moderate water consumption in water deficient situations (Leiva & Fernández-Alés, 1998;Stewart & Bernier, 1995). Plants with SDW/RDW values above 2.5, such as those developed in container CH200, should be established under favorable environmental conditions or where there is the possibility of applying irrigation during the establishment phase (Haase & Rose, 1993).…”

Section: Growing Medium / Sustratomentioning

confidence: 99%

Producción de plántula de orégano (Lippia graveolens Kunth) por semilla en vivero para trasplante

Martínez-Hernández¹,

Villa-Castorena²,

Catalán-Valencia³

et al. 2016

Rev Cha Se Cie For y del Amb

View full text Add to dashboard Cite

L a producción de orégano en vivero es una opción para la obtención de plantas de buena calidad para trasplante. El propósito del presente estudio fue evaluar el efecto de cinco sustratos y cinco contenedores en el crecimiento y calidad de la planta de orégano. Los sustratos fueron: mezcla comercial BM2 (turba, perlita y vermiculita, 80:10:10), BM2 + arena de río (1:1), BM2 + arena de río (1.5:1), BM2 + perlita + vermiculita (1:1:1) y mezcla de composta + arena de río (1.5:1). Los contenedores incluyeron charolas de poliestireno expandido (PE) de 200, 128 y 76 cavidades, vaso de PE de 250 cm3 y bolsa de plástico negro de 712 cm3 (calibre 150 μm). Se usó un diseño experimental de bloques al azar con arreglo factorial, con cuatro repeticiones por tratamiento. Los sustratos y el tipo de contenedor afectaron el crecimiento y calidad de la planta. Se observó mayor crecimiento de la planta y mayor área foliar en la combinación bolsa y sustrato BM2. Este mismo sustrato y el contenedor bolsa promovieron el índice de calidad de Dickson más alto. La relación peso seco del vástago y peso seco de la raíz fue mayor en los contenedores de mayor volumen.

show abstract

Variability in seedling water status during drought within a Quercus ilex subsp. ballota population, and its relation to seedling morphology

Cited by 65 publications

References 17 publications

Direct sowing of holm oak acorns: effects of acorn size and soil treatment

Direct sowing of holm oak acorns: effects of acorn size and soil treatment

Nursery cultivation regimes, plant functional attributes, and field performance relationships in the Mediterranean oak Quercus ilex L.

Producción de plántula de orégano (Lippia graveolens Kunth) por semilla en vivero para trasplante

Contact Info

Product

Resources

About