Inorganic Nitrogen Form Determines Nutrient Allocation and Metabolic Responses in Maritime Pine Seedlings
نویسندگان
چکیده
منابع مشابه
Variation of early reproductive allocation in multi-site genetic trials of Maritime pine and Aleppo pine
Life histories in Mediterranean pines are well known to be closely related to different fire and disturbance regimes. Variation in these factors is also reflected in reproductive strategies at the specific and intraspecific level. Specifically, the onset of reproduction is a crucial stage for any organism because it has profound implications on fitness. In this paper we focus on the intraspecif...
متن کاملHydraulic responses to height growth in maritime pine trees
As trees grow taller, decreased xylem path conductance imposes a major constraint on plant water and carbon balance, and is thus a key factor underlying forest productivity decline with age. The responses of stomatal conductance, leaf area: sapwood area ratio ( A L : A S ) and soil–leaf water potential gradient ( DY S–L ) to height growth were investigated in maritime pine trees. Extensive meas...
متن کاملMature Ponderosa Pine Nutrient Use and Allocation Responses to Air Pollution
Current-year needles from mature ponderosa pine (Pinus ponderosa Dougl. ex. Laws.) were sampled at four sites across the air pollution gradient in the San Bernardino Mountains in southern California. The sites, in order of decreasing air pollution exposure, included: Sky Forest (SF), Conference Center (CC), Camp Angelus (CA) and Heart Bar (HB). Needle nutrients measured were: nitrogen (N), phos...
متن کاملThe Effects of Inorganic Nitrogen form and CO2 Concentration on Wheat Yield and Nutrient Accumulation and Distribution
Inorganic N is available to plants from the soil as ammonium [Formula: see text] and nitrate [Formula: see text]. We studied how wheat grown hydroponically to senescence in controlled environmental chambers is affected by N form ([Formula: see text] vs. [Formula: see text]) and CO(2) concentration ("subambient," "ambient," and "elevated") in terms of biomass, yield, and nutrient accumulation an...
متن کاملNutrient Uptake by Intact and Disturbed Roots of Loblolly Pine Seedlings
1 Most measurements of nutrient uptake use either hydroponic systems or soil-grown 2 roots that have been disturbed by excavation. The first objective of this study was to 3 test how root excavation affects nitrate uptake. Rates of NO3 uptake by mycorrhizal 4 loblolly pine (Pinus taeda L.) seedlings were measured in intact sand-filled columns, 5 hydroponics, and disturbed sand-filled columns. T...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Plants
سال: 2020
ISSN: 2223-7747
DOI: 10.3390/plants9040481