نتایج جستجو برای: platanus acerifolia
تعداد نتایج: 394 فیلتر نتایج به سال:
Over three consecutive years in central Mississippi, sweetgum (Liquidambar styraci/lua L.) and sycamore (Platanus occidentalis L.) fruits had nearly reached fullsize by late June. Sweetgum seeds were physiologically mature by mid-August, but dry weight increased until late September. As sweetgum seeds matured, the crude fat level rose to 27 percent of seed dry weight. During maturation, concent...
We n&asured leaf respiration in 18 eastern deciduous forest tree species to determine if there were differences in tempera i m-respiration response functions among species or among c opy positions. Leaf respiration rates were measured in situ an4 on detached branches fordcerpensylvanicum L., A. rubrum i., Betula spp. (B. alleghaniensis Britt. and B. renta L.), Caryq glabra (Mill.) Sweet, Cornus...
Passive steady-state chlorophyll fluorescence (Fs) provides a direct diagnosis of the functional status of vegetation photosynthesis. With the prospect of mapping Fs using remote sensing techniques, field measurements are mandatory to understand to which extent Fs allows detecting plant stress in different environments. Trees of four common species in Valencia were classified in either a low or...
The Maple-leaf oak, Quercus acerifolia (E.J.Palmer) Stoynoff & Hess, is listed as Critically Imperiled by the State of Arkansas and considered endangered in IUCN Red List Threatened Oak Species. It endemic to interior highlands Ouachita Mountains west-central Arkansas, where it reported occur only four isolated locations. No specific research exists regarding predicted climate change impact...
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