Effect of nursery location and outplanting date on field performance of Pinus halepensis and Quercus ilex seedlings

Pardos, Marta; Royo, A.; Gil, Luis; Pardos, J.A.

doi:10.1093/forestry/76.1.67

Cited by 28 publications

(24 citation statements)

References 32 publications

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“…RGP was found to be significantly correlated with one-year height of ash (Fraxinus excelsior [L.]) (O'Reilly et al 2002a) and with field growth and survival of two-year-old holm oak (Quercus ilex [L.]) (Pardos et al 2003), while the low RGP at the time of planting was found to be related to reduced field survival and stem die back in two oak species (Garriou et al 2000). In our experiment, RGP did not differ significantly between the two seed origins.…”

Section: Discussionmentioning

confidence: 99%

Effects of seed origin, growing medium and mini-plug density on early growth and quality of black locust (Robinia pseudoacacia [L.]) seedlings

Dini-Papanastasi¹,

Κωστοπούλου²,

Radoglou³

2012

J. For. Sci.

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ABSTRACT:The objective of this study was to identify optimal growing conditions for the production of high-quality mini-plug seedlings of black locust (Robinia pseudoacacia [L.]). Two seed origins (Greek and Hungarian), two growing media (enriched peat and stabilized medium) and four mini-plug densities (975; 1,460; 1,820 and 3,500 mini-plugs·m -2 )were tested in two phases, in growth chambers and in a nursery after transplanting the mini-plugs into larger containers. Measurements included seedling survival, growth traits (root length, shoot height, leaf area, root dry mass, shoot dry mass, root/shoot ratio) and root growth potential (RGP). In addition, the ratio of variable to maximal fluorescence (F v /F m ) and the effective quantum yield of photosystem II (ΔF/F' m ) were measured. It was found that growing medium produced significant effects mainly in the first phase and seed origin in the second phase while mini-plug density was important in both phases. The F v /F m ratio was found to be significantly affected by growing medium while the effective quantum yield was influenced by density. Early survival of seedlings was closely correlated with fluorescence and growth traits (particularly with plant height) suggesting that these parameters might be useful for the grading of black locust seedlings prior to transplanting.

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Section: Discussionmentioning

confidence: 99%

Effects of seed origin, growing medium and mini-plug density on early growth and quality of black locust (Robinia pseudoacacia [L.]) seedlings

Dini-Papanastasi¹,

Κωστοπούλου²,

Radoglou³

2012

J. For. Sci.

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“…RGP may be the most useful indicator of plant vitality (Ritchie, 1984). RGP was positively correlated with field growth and survival in seedlings of holm oak (Quercus ilex L.) (Pardos et al, 2003), sessile oak (Quercus petrea Matt.) (Mortazavi et al, 2004) and with the survival of pedunculate oak after cold storage (Lindqvist and Asp, 2002).…”

Section: Nursery Experimentsmentioning

confidence: 99%

Drying and soaking pretreatments affect germination in pedunculate oak

Doody

O'Reilly

2008

Ann. For. Sci.

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-• Pedunculate oak (Quercus robur L.) acorns are recalcitrant so they are difficult to store. Therefore, deterioration in quality during storage may reduce seedling yield and quality. In an attempt to address this, the effects of drying and soaking treatments on acorn germination were assessed.• After harvesting on two occasions in October, the moisture content (MC) of acorns were adjusted using the following treatments: (1) fresh state or control (46-48% MC); (2) soaked in fresh state (46-48%); (3) dried (40-42%) (standard method); and (4) dried and then soaked (46-48%). The treated acorns were allowed to germinate at 15 • C, both before and after storage at -3 • C.• Treatment effects were generally consistent for each harvest date. Compared to the untreated controls, soaking alone and drying followed by soaking significantly increased germination both before and after storage. Storage reduced germination, except for the dried and soaked acorns.• The results confirmed that drying and soaking improved acorn germination, but this was not mediated through an effect on acorn MC. In a separate nursery experiment, acorns given this treatment resulted in higher seedling yields and better quality plants than those given the standard treatment (dried to 40-42% MC).Quercus robur / pretreatment / storage / harvest date Résumé -Séchage et trempage, des prétraitements qui influencent la germination du chêne pédonculé.• Les glands du chêne pédonculé (Quercus robur L.) sont difficiles à stocker. En conséquence, la détérioration de leur qualité pendant le stockage peut réduire la production et la qualité des semis. Pour répondre à ceci, les effets de prétraitements de séchage et de trempage sur la germination des glands ont été évalués.• Après récolte à deux occasions en octobre, la teneur en eau (MC) des glands a été ajustée en utilisant les traitements suivants : (1) état frais ou témoin (46-48 %MC), (2) trempage à l'état frais (46-48 % MC), (3) séché (40-42 % MC) (méthode standard), (4) séché puis trempé (46-48 % MC). Les traitements permirent une germination des glands à 15 • C, aussi bien avant qu'après un stockage à -3 • C.• Les effets des traitements furent en général cohérents pour chaque date de récolte. Comparés aux traitements témoins, le trempage seul et le séchage suivi par un trempage ont accru significativement la germination aussi bien avant qu'après stockage. Le stockage réduit la germination sauf dans le cas des glands séchés et trempés.• Les résultats confirment que le séchage et le trempage améliorent la germination des glands, mais ceci n'est pas obtenu par l'intermédiaire d'un effet sur la teneur en eau des glands. Dans une expérimentation séparée en pépinière, ces traitements entraînent une plus grande production de semis et une meilleure qualité des plants que ceux issus du traitement standard (séché à 40-42 % MC).Quercus robur / prétraitements / stockage / date de récolte

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“…3B). RGP is the most common physiological quality testing protocol for conifers (Simpson and Ritchie, 1997), and positive relationships between RGP and survival or field performance have consistently been reported for a variety of hardwood species (Garriou et al, 2000;Lindqvist, 1998;O'Reilly et al, 2002;Pardos et al, 2003). Additionally, RGP may provide a good indicator of stress tolerance and storability as RGP immediately after lifting was negatively correlated with survival for silver birch (Betula pendula Roth.)…”

Section: Transplant Performancementioning

confidence: 99%

“…Increasing demand for hardwood species as a result of ecological restoration and conservation practices (King and Keeland, 1999;Stanturf et al, 2000), however, has led to increased efforts to develop seedling quality assessment methods specific to hardwoods (Wilson and Jacobs, 2006). One method for evaluating seedling physiological quality, cold hardiness assessment, provides a measure of dormancy status (Ritchie, 1984), predicts ability of seedlings to withstand stresses associated with lifting, storing, and planting (O'Reilly et al, 1999), and serves as an indicator of field performance potential (Pardos et al, 2003). Physiological methods of testing cold hardiness are also rapid (McKay, 1992), allowing for timely management decisions in nursery operations.…”

Section: Introductionmentioning

confidence: 99%

Endurcissement au froid et réponse des semis de Juglans nigra transplantés après exposition à différentes modalités de stockage

et al. 2008

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-• Effects of overwinter storage regimes on seedling cold hardiness and physiological vigor are relatively unexplored, particularly for temperate deciduous forest tree species.• We evaluated influence of storage duration (0, 66, 119, or 175 d) on electrolyte leakage of stem and root collar tissues following exposure to a series of freeze-test temperatures in black walnut (Juglans nigra L.) seedlings sampled from cold (3 • C) or freezer (-2 • C) storage. Seedlings were subsequently transplanted into a controlled growth chamber environment for two months.• Regardless of storage temperature, mean LT 50 was lowest for seedlings stored for 66 d (≤ -34 • C) and increased dramatically after 119 d (≥ -13 • C).• Root collar tissue had lower LT 50 than stem tissue after 119 d for cold-stored seedlings, reflecting importance of evaluative tissue type. Days to bud break shortened with increasing storage duration up to 119 d and stabilized thereafter for both storage regimes. Root growth potential was maximized after 119 d of storage, and subsequently declined for cold-stored seedlings. Height growth increased following storage, regardless of duration.• To promote stress resistance and transplant growth response, we recommend that black walnut seedlings from this genetic source be outplanted after approximately 66-119 d of storage.black walnut / bud break / cold hardiness / cold storage / electrolyte leakage / freezer storage / root growth potential Résumé -Endurcissement au froid et réponse des semis de Juglans nigra transplantés après exposition à différentes modalités de stockage.• Les effets de différentes modalités de stockage hivernal sur la résistance au froid des semis et sur leur vigueur physiologique ont été relativement inexplorés, en particulier pour les arbres forestiers décidus tempérés.• Nous avons évalué l'influence de la durée de stockage (0, 66, 119 ou 175 jours) sur la perte d'électrolyte de la tige et des tissus du collet racinaire exposés à une série de tests (témoin 4 %C, -10 • C, -20 • C, -40 • C) de température de congélation de semis de noyer noir (Juglans nigra L.), après stockage au froid (3 • C) ou au gel (-2 • C). Les semis étaient ensuite transplantés dans une chambre climatisée pour une durée de deux mois. Indépendamment de la température de stockage, la moyenne de LT50 (température létale correspondant à un endommagement de 50 % des plants) a été plus basse pour les semis stockés pendant 66 jours (≤ -34 • C) et s'est accrue de façon spectaculaire après 119 jours (≥ -13 • C).• Les tissus du collet racinaire avaient un plus bas LT50 que les tissus de la tige, après 119 jours pour les semis stockés au froid, reflétant l'importance du type de tissu pour l'évaluation. Le nombre de jours jusqu'au débourrement a été raccourci avec l'accroissement de la durée de stockage jusqu'à 119 jours et s'est stabilisé par la suite pour les deux modalités de stockage. Le potentiel de croissance racinaire a été maximisé après 119 jours de stockage et a décliné par la suite, pour les semis stockés au froid...

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Effect of nursery location and outplanting date on field performance of Pinus halepensis and Quercus ilex seedlings

Cited by 28 publications

References 32 publications

Effects of seed origin, growing medium and mini-plug density on early growth and quality of black locust (Robinia pseudoacacia [L.]) seedlings

Effects of seed origin, growing medium and mini-plug density on early growth and quality of black locust (Robinia pseudoacacia [L.]) seedlings

Drying and soaking pretreatments affect germination in pedunculate oak

Endurcissement au froid et réponse des semis de Juglans nigra transplantés après exposition à différentes modalités de stockage

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