Photosynthate distribution patterns in cherrybark oak seedling sprouts
نویسندگان
چکیده
منابع مشابه
Photosynthate distribution patterns in cherrybark oak seedling sprouts.
We used 14C tracers to determine photosynthate distribution in cherrybark oak (Quercus pagoda Raf.) seedling sprouts following release from competing mid-story vegetation. Fall acquisition of labeled photosynthates by seedlings followed expected source-sink patterns, with root and basal stem tissues serving as the primary sinks. Four months after the seedlings had been labeled with 14C, they we...
متن کاملGrowth and biomass distribution of cherrybark oak (Quercus pagoda Raf.) seedlings as influenced by light availability
Cherrybark oak (Quercrrs pagoda Raf.) seedlings were established and raised in the field under four light levels (100%. 53%. 27% or 8% of full sunlight) to study the effects of light availability on their shoot growth, biomass accumulation, and biomass distribution. After two growing seasons, greatest stem growth was observed on seedlings which received intermediate light levels, and this growt...
متن کاملPrediction of Leaf Area in Individual Leaves of Cherrybark Oak Seedlings ( Quercus pagoda Raf . )
The prediction of leaf area for cherrybark oak (eerm pagoda Raf.) seedlings is important for studying the physiology of the species. Linear and polynomial models involving leaf length, width, fresh weight, dry weight, and internodal length were tested independently and collectively to predict leaf area. Twenty-nine cherrybark oak seedlings were grown in a greenhouse for one growing season and a...
متن کاملStump Sprouting 2 Years after Thinning in a Cherrybark Oak Plantation
Stump sprouts are considered an important regeneration source in hardwood management, especially in upland oak-dominated forests. Less is known about stump sprouting in bottomland oak forests. Therefore, the objective of this study was to determine the success and growth of stump sprouts following 2 thinning levels, 70-75 percent of initial stocking (light thinning) and 45-50 percent of initial...
متن کاملEffects of Light Regimes on the Growth of Cherrybark Oak Seedlings
Light regimes vary significantly within small forest openings, rangingfrom full sunlight to total shade, and they may affect the establishment and early growth of oak seedlings. We designed modified shadehouses to simulate the complex light conditions within forest openings and tested the effects of daily photosynthetically active radiation (PAR), time of direct light exposure, and the ratio of...
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ژورنال
عنوان ژورنال: Tree Physiology
سال: 2003
ISSN: 0829-318X,1758-4469
DOI: 10.1093/treephys/23.16.1137