BigrasCoursolleMargolis2004

Reference

Bigras, F.J., Coursolle, C., Margolis, H.A. (2004) Survival and growth of Picea glauca seedlings as a function of freezing temperatures and exposure times during budbreak and shoot elongation. Scandinavian Journal of Forest Research, 19(3):206-216.

Abstract

The impact of freezing temperatures and exposure times during budbreak and shoot elongation on 10-month-old containerized white spruce seedlings [ Picea glauca (Moench) Voss] was studied. Seedlings were exposed to 0, -2, -4, -6, -8 and -10degreesC for 0, 1, 2, 3, 4, 5 and 6 h at four stages of budbreak and shoot elongation (stage 1: unswollen bud; stage 2: swollen bud; stage 3: bud scales parted by emerging needles; stage 4: 1-5 cm of terminal shoot growth). Seedling and terminal bud survival, viability of first-year needles (developed before frost exposure), terminal shoot length, stem diameter and aerial dry mass were measured 90 days after freezing exposure. Frost severity had a much greater influence on seedling survival, damage and subsequent growth than exposure time. The bud development stage at which freezing temperatures were applied also affected survival and subsequent growth.

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@ARTICLE { BigrasCoursolleMargolis2004,
    AUTHOR = { Bigras, F.J. and Coursolle, C. and Margolis, H.A. },
    TITLE = { Survival and growth of Picea glauca seedlings as a function of freezing temperatures and exposure times during budbreak and shoot elongation },
    JOURNAL = { Scandinavian Journal of Forest Research },
    YEAR = { 2004 },
    VOLUME = { 19 },
    PAGES = { 206-216 },
    NUMBER = { 3 },
    NOTE = { Times Cited: 1 },
    ABSTRACT = { The impact of freezing temperatures and exposure times during budbreak and shoot elongation on 10-month-old containerized white spruce seedlings [ Picea glauca (Moench) Voss] was studied. Seedlings were exposed to 0, -2, -4, -6, -8 and -10degreesC for 0, 1, 2, 3, 4, 5 and 6 h at four stages of budbreak and shoot elongation (stage 1: unswollen bud; stage 2: swollen bud; stage 3: bud scales parted by emerging needles; stage 4: 1-5 cm of terminal shoot growth). Seedling and terminal bud survival, viability of first-year needles (developed before frost exposure), terminal shoot length, stem diameter and aerial dry mass were measured 90 days after freezing exposure. Frost severity had a much greater influence on seedling survival, damage and subsequent growth than exposure time. The bud development stage at which freezing temperatures were applied also affected survival and subsequent growth. },
    KEYWORDS = { cold tolerance; forest nurseries; seedling survival; spring frost FROST HARDINESS },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

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