Gas exchange and water relations of 3 sizes of containerized Picea mariana seedlings subjected to atmospheric and edaphic water stress under controlled conditions

Stewart, James Monroe; Py, Bernier

doi:10.1051/forest:19950101

Cited by 29 publications

(19 citation statements)

References 12 publications

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“…This difference might be explained by the contrasting experimental conditions in both studies. Thus, Broncano et al (1998) did not make field plantations and performed all their experiment growing the seedlings in 180 cm 3 pots, in which plants with large shoots and high S/R can experience water stress earlier than those with the opposite traits (Stewart and Bernier, 1995). In contrast to shoot size and S/R, outplanting performance was not related to root mass, which is in accordance with the lack of differences in root growth among nursery treatments.…”

Section: Field Performance and Its Relationship With Plant Attributesmentioning

confidence: 64%

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

180

138

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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. #

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Section: Field Performance and Its Relationship With Plant Attributesmentioning

confidence: 64%

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

180

138

View full text Add to dashboard Cite

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“…This was consistent with results for other pine species (McTague & Tinus 1996). A higher survival of smaller seedlings on droughty sites was explained by reduced water stress (Rose et al 1993, Stewart & Bernier 1995 due to their lower shoot-toroot ratio (Grossnickle 2005b(Grossnickle , 2012 and larger root systems (Burdett 1990, Grossnickle 2005a.…”

Section: Initial Morphological Attributes and Survivalmentioning

confidence: 99%

Forecasting the field performance of Austrian pine seedlings using morphological attributes

Ivetić¹,

Grossnickle²,

Škorić³

2017

iForest

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(2) , Mirko Škorić (1) This study examined whether the morphological attributes of Austrian pine (Pinus nigra ssp. nigra var. nigra Arnold) seedlings measured in the nursery could be used to forecast subsequent field performance over an extended time frame. Seedlings from three seed sources were produced in two types of containers and in bareroot seedbeds. These seedlings were measured for an array of morphological attributes (height, HT; root collar diameter, RCD; shoot height/diameter ratio, HD; shoot and root dry weight, SDW and RDW, respectively; shoot:root ratio, S:R; number of the first order lateral roots, FOLR; and Dickson quality index, DQI) and then planted at two sample plots with different soil depth. Seedling attributes were tested against field survival and growth in the first three years and growth in the twelfth year for their ability to forecast field performance. Correlations between morphological attributes and field performance were stronger for the plot with shallower soil, having potentially drier conditions. HT, HD, and S:R were the best attributes for forecasting seedling survival. HD was the most reliable attribute to forecast growth during the first three years after planting, defining the largest proportion of variation for growth (r 2 =0.36 to 0.86). Morphological attributes were better able to forecast field performance in the first three years at the shallow soil site, with FOLR the best single morphological variable. HT, DIA, and RDW were the best attributes to forecast growth during the first three years after planting on both sites. Morphological attributes were not able to forecast growth 12 years after planting.

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“…B.S.P.) and white spruce (Picea glauca (Moench) Voss) large seedling stock, two commonly planted species across Canada, specifically examined transplant shock and initial establishment in growth chambers [36], experimental sand beds [15], and experimental field sites [13,16].…”

Section: Introductionmentioning

confidence: 99%

Net effect of competing vegetation on selected environmental conditions and performance of four spruce seedling stock sizes after eight years in Qu�bec (Canada)

2003

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-A study was established in 1993 to determine the response of four black spruce (Picea mariana) and white spruce (P. glauca) stock sizes on two sites located in Québec (Canada), each representing a different type of competing vegetation. At each site, a split-split-plot design with 15 to 17 replicates was used, in which the presence of competition (weedy and bare plots), seedling initial size, and spruce species were assigned respectively to the whole plot, the subplot, and the sub-subplot. Larger initial seedling size provided a greater competitive ability for light and had higher growth rates than the standard stock size for both species. Growth gains from combining plantation of large stock with vegetation control were multiplicative. Non-crop vegetation significantly lowered the seasonal profile of 10-cm depth soil temperature on both sites. This study shows that early release treatment is required on sites dominated by raspberry-hardwood competition complex and planting large spruce stock on such harsh competition sites will help reduce the need for repeated vegetation control. large seedling / competition / vegetation control / soil temperature / release treatment Résumé -Effet net de la végétation de compétition sur certaines conditions environnementales et sur la performance de quatre dimensions de plants d'épinette après huit ans. Une étude a été établie en 1993 afin de déterminer la performance de quatre dimensions de semis d'épinette noire (Picea mariana) et d'épinette blanche (P. glauca) mis en terre sur deux sites situés au Québec (Canada), chacun représentant un type de compétition. À chaque site d'étude, un dispositif en tiroirs subdivisés avec 15 et 17 répétitions a été utilisé, avec la présence de compétition, la dimension initiale des semis et l'espèce, assignées à la parcelle principale, la sous-parcelle et la sous sous-parcelle, respectivement. Les plants de fortes dimensions (PFD) ont reçu plus de lumière et ils affichaient une meilleure croissance que le plant de dimension standard. Les gains de croissance découlant de la combinaison d'une plantation de PFD avec contrôle de la compétition ont été multiplicatifs. La végétation de compétition a significativement abaissé le profil saisonnier de la température du sol mesurée à 10 cm de profondeur. Cette étude démontre qu'un dégagement hâtif est nécessaire sur les stations caractérisées par une forte compétition de framboisiers et de feuillus intolérants. De plus, sur ces mêmes stations, un reboisement avec des PFD devrait limiter le besoin de répéter les dégagements mécaniques. plant de fortes dimensions / compétition / gestion de la végétation / température du sol / dégagement mécanique

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Gas exchange and water relations of 3 sizes of containerized Picea mariana seedlings subjected to atmospheric and edaphic water stress under controlled conditions

Cited by 29 publications

References 12 publications

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

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

Forecasting the field performance of Austrian pine seedlings using morphological attributes

Net effect of competing vegetation on selected environmental conditions and performance of four spruce seedling stock sizes after eight years in Qu�bec (Canada)

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