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O'Reilly, Conor; McCarthy, Nicholas; Keane, M. G.; Harper, Charles P.

doi:10.1023/a:1006683118155

Cited by 19 publications

(8 citation statements)

References 32 publications

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“…Increases in Fv / Fm and, particularly Φ PSII, were observed prior to increases in REL. The REL estimates were significantly lower in January, February and March than on other lift dates (p < 0.05), and were similar to those previously reported under Irish conditions [32].…”

Section: Physiological Assessments Of Freshly Lifted Stocksupporting

confidence: 90%

“…visually) graded seedlings. Some material was then directly planted at a farm-field site [32] soon after lifting (see 2.6. Outplanting performance).…”

Section: Treatmentsmentioning

confidence: 99%

“…Total survival was assessed and a scalar plant health index (PHI) was constructed, which transformed a single visual score assessment of needle browning [10,32], for the whole plant, to a continuous linear scoring scale (value range: 0 = brown, presumably dead to 1 = completely green, presumably healthy). PHI has an advantage over simple measurements of survival as it incorporates a "score" related to the health of the plant.…”

Section: Outplanting Performance (Field Trial)mentioning

confidence: 99%

“…In Ireland, direct planting of freshly lifted bare-root seedlings onto forest sites is standard practice, but low survival and/or poor growth of Douglas fir is common [32]. Transplantation shock has also resulted in highly variable survival under the climatic conditions that prevail in both Britain [26] and France [14].…”

Section: Introductionmentioning

confidence: 99%

“…The typically mild and moist climatic conditions found in Ireland may result in Douglas fir failing to develop full winter dormancy and stock may show a reduced tolerance to storage [32]. Also cold storage in Ireland is carried out at sub-zero temperatures (-2 o C); such storage temperatures have been shown to have detrimental effects upon Douglas fir seedling quality in the UK [e.g.…”

Section: Introductionmentioning

confidence: 99%

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Chlorophyll fluorescence characteristics, performance and survival of freshly lifted and cold stored Douglas fir seedlings

et al. 2001

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-The physiological condition of three-year-old Douglas fir [Pseudotsuga menziesii (Mirb.) Franco] was periodically assessed from October to May 1998/1999 during propagation of seedlings in an Irish nursery. Seedling physiological status was evaluated in situ using determinations of chlorophyll fluorescence and plant water status. Pre-and post-cold stored (either -2 o C or +0.5 o C) plant vitality was examined using determinations of root growth potential (RGP), root electrolyte leakage (REL), shoot water content and chlorophyll fluorescence. Data obtained from freshly lifted and cold stored stock showed that chlorophyll fluorescence provides a reliable (non-destructive) method of evaluating a seedlings potential field performance in both pre-lift (direct planting) and post-storage (outplanting) situations. Variations in survival and an index of plant health were paralleled by inverse changes in the effective quantum yield of photosystem II (Φ PSII) from November to April. Significant positive non-linear relationships were found between RGP and Φ PSII, though they were of limited predictive ability in terms of outplanting performance. Post-storage fluorescence assessments indicated down-regulation and/or damage of the plants photosynthetic light-harvesting complex, which depended on storage temperature and duration. Ann. For. Sci. 58 (2001) [225][226][227][228][229][230][231][232][233][234][235] 225

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Section: Physiological Assessments Of Freshly Lifted Stocksupporting

confidence: 90%

“…visually) graded seedlings. Some material was then directly planted at a farm-field site [32] soon after lifting (see 2.6. Outplanting performance).…”

Section: Treatmentsmentioning

confidence: 99%

Section: Outplanting Performance (Field Trial)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Chlorophyll fluorescence characteristics, performance and survival of freshly lifted and cold stored Douglas fir seedlings

et al. 2001

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Influence of Nursery Cultural Practices on Cold Hardiness of Coniferous Forest Tree Seedlings

2001

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Effect of frost nights and day and night temperature during dormancy induction on frost hardiness, tolerance to cold storage and bud burst in seedlings of Norway spruce

Søgaard

Granhus

Johnsen³

2009

Trees

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For trees, the ability to obtain and maintain sufficient levels of frost hardiness in late autumn, winter and spring is crucial. We report that temperatures during dormancy induction influence bud set, frost hardiness, tolerance to cold storage, timing of bud burst and spring frost hardiness in seedlings of Norway spruce (Picea abies (L.) Karst.). Bud set occurred later in 12°C than in 21°C, and later in cool nights (7°C) than in constant temperature. One weekly frost night (-2.5°C) improved frost hardiness. Cool nights reduced frost hardiness early, but improved hardiness later during cold acclimation. Buds and stems were slightly hardier in 21°C than in 12°C, while needles were clearly hardier in 12°C. Cold daytime temperature, cool nights and one weekly frost night improved cold storability (0.7°C). Seedlings receiving high daytime temperatures burst buds later, and were less injured by light frost some days after bud burst.

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Untitled

Cited by 19 publications

References 32 publications

Chlorophyll fluorescence characteristics, performance and survival of freshly lifted and cold stored Douglas fir seedlings

Chlorophyll fluorescence characteristics, performance and survival of freshly lifted and cold stored Douglas fir seedlings

Influence of Nursery Cultural Practices on Cold Hardiness of Coniferous Forest Tree Seedlings

Effect of frost nights and day and night temperature during dormancy induction on frost hardiness, tolerance to cold storage and bud burst in seedlings of Norway spruce

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