Yield prediction of Abies sachalinensis MAST, plantations baesd on various thinning method
نویسندگان
چکیده
منابع مشابه
effect of seed priming and irrigation regimes on yield,yield components and quality of safflowers cultivars
این مطالعه در سال 1386-87 در آزمایشگاه و مزرعه پژوهشی دانشگاه صنعتی اصفهان به منظور تعیین مناسب ترین تیمار بذری و ارزیابی اثر پرایمینگ بر روی سه رقم گلرنگ تحت سه رژیم آبیاری انجام گرفت. برخی از مطالعات اثرات سودمند پرایمینگ بذر را بر روی گیاهان مختلف بررسی کرده اند اما در حال حاضر اطلاعات کمی در مورد خصوصیات مربوط به جوانه زنی، مراحل نموی، عملکرد و خصوصیات کمی و کیفی بذور تیمار شده ژنوتیپ های م...
Modeling Survival, Yield, Volume Partitioning and Their Response to Thinning for Longleaf Pine Plantations
Longleaf pine (Pinus palustris Mill.) is an important tree species of the southeast U.S. Currently there is no comprehensive stand-level growth and yield model for the species. The model system described here estimates site index (SI) if dominant height (Hdom) and stand age are known (inversely, the model can project Hdom at any given age if SI is known). The survival (N) equation was dependent...
متن کاملInfluence of low- and high-elevation plant genomes on the regulation of autumn cold acclimation in Abies sachalinensis
Boreal coniferous species with wide geographic distributions show substantial variation in autumn cold acclimation among populations. To determine how this variation is inherited across generations, we conducted a progeny test and examined the development of cold hardening in open-pollinated second-generation (F2) progeny of Abies sachalinensis. The F1 parents had different genetic backgrounds ...
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A method for estimating risk ratios of wind damage for Pinus thunbergii trees and stands was developed based on stem bending theory and coefficients characterizing wind profiles (attenuation coefficients wtr, wst for single tree and stand respectively), distribution of branches (constant ac) and optical stratification porosity (OSP) (extinction coefficient ec). For individual trees, if acs equa...
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Watermelon nuts is widely cultivated in Khorasan Razavi for its edible seed production. Two experiments were therefore, conducted to increase seed production in Bahonar University of Kerman Research Station in 2013 and 2014. In first year, the effects of gibberellic acid (0 and 50 mg/l) and fruit number (1, 2 and 3 fruits /plant) were studied in 4 populations. In second year, the effects of 24-...
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ژورنال
عنوان ژورنال: Japanese Journal of Forest Planning
سال: 1991
ISSN: 0917-2017,2189-8308
DOI: 10.20659/jjfp.16.0_87