Temat: plant potential - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Mycorrhizal status of Scots pine Pinus sylvestris L. seedlings grown in watered and non-watered nursery condition
Autorzy:: Hilszczanska, D
Powiązania:: https://bibliotekanauki.pl/articles/41009.pdf
Data publikacji:: 2004
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: Scots pine zob.Scotch pine
Scotch pine
Pinus sylvestris
mycorrhizal status
watering effect
plant growth
plant development
tree
soil water potential
moisture condition
Opis:: This study describes the effect of watering on the mycorrhizal development and growth of Scots pine seedlings in a bare root nursery. Seedlings of Scots pine, grown under nursery conditions on natural soil (loamy sand) and soil + litter, were subjected to two different watering regimes for five months. During this time, measurements of soil water potential were made. Seedlings grown in natural soil and subjected to drought conditions were of significantly greater shoot height and volume and they had one mycorrhizal morphotype more than watered seedlings. However, irrigated seedlings subjected to excessive watering possessed greater mycorrhizal colonization: 46% on natural soil and 72% on soil + litter, while non-irrigated seedlings had 36% and 67% levels of mycorrhizal colonization, respectively.
Źródło:: Dendrobiology; 2004, 52; 23-28
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Osmotic adaptation of Quercus robur L. under water stress in stands with different tree density - relation with groundwater table
Autorzy:: Cater, M.
Powiązania:: https://bibliotekanauki.pl/articles/41074.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: osmotic adaptation
osmotic water potential
pedunculate oak
flood plain forest
Quercus robur
water stress
stand
tree
plant density
density
relation
ground water
Opis:: Solute accumulation in plant leaves during drought through accumulation of organic compounds is known to compensate turgor loss andpromote higher stomatal conductance at lower water potentials. Recent studies have involved experiments on saplings and younger stands, while evidence of osmotic adjustment in adult pedunculate oak under natural stand conditions on different sites is scarce. Pressure volume curves technique was used to define differences in osmotic potential – water stress adaptation – of 120 year oldped unculate oak trees in two managedforest complexes andin virgin forest remnant. Tree response between the managedstandafter thinning andthe standwithout any silvicultural measures within same forest complex was also compared during summer months in two consecutive (dry and favourable) years with groundwater table. Significant differences were observed in adaptation between forest complexes and during dry (2003) and favourable (2004) years. Osmotic component of thinnedforest was the highest, showing most negative values of stress adjustment. Measured values on all plots responded well to drop in groundwater table, especially in pronounced drought conditions. Such response may be in relation with lower stand density and increased individual space for growth in thinned stand. Adult oaks did not loose their ability to water stress adaptation, in spite of their age and progressively decreasing health conditions.
Źródło:: Dendrobiology; 2011, 65
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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