نتایج جستجو برای: صنوبرpopulus deltoides
تعداد نتایج: 694 فیلتر نتایج به سال:
Poplars have long been considered for wood production in various uses and cultivated by the villagers. Willows have also been developed in recent years as biomass and bioenergy sources in the world. The necessity of research on the adaptation of poplars in different planting conditions is important for achieving superior clones. In this study the growth and production function of Salix exc...
poplars are classified as fast-growing and slightly water tolerant species which will be weakened with decreased growth in extreme moisture or drought lands. the plantation of these species in agricultural lands and at the edge of rivers and water canals has currenthy an important role in both economical and social development of rural regions. the purpose of this study was to investigate and c...
The present study entitled “Study of variation in quantitative traits poplar (Populus deltoides) clones different environments” was undertaken the Department Tree Improvement and Genetic Resources, Dr. Y. S. P. U. H. F., Nauni- Solan 173230 (H.P.). three experimental sites namely 1) Dhaula Kuan, RH&TS, Dist. Sirmaur (H. P.), 2) Laddhowal farm, PAU, Ludhiana (Punjab) 3) Naganji nursery, Naun...
رشد سریع صنوبرهای حاصل از قلمه‌های خشبی برای موفقیت جنگل‌کاریها بسیار مهم است. بدون رشد سریع، رقابت با علفهای هرز، زنده‌مانی و عملکرد نهالها را تحت تأثیر قرار می‌دهد. در این تحقیق اثر سن قلمه و عمق کاشت بر روی زنده‌مانی اولیه، رشد و بیوماسPopulus deltoides 69/55 در گلخانه بدون منبع حرارتی مورد مطالعه قرار گرفت. قلمه‌های خشبی از شاخه‌های یکساله و دوساله جمع‌آوری و با دو عمق مختلف در گلدان کاشته ...
The aims of this study were to evaluate the microbial diversity of different lignocellulosic biomasses during degradation under natural conditions and to isolate, select, characterise new well-adapted bacterial strains to detect potentially improved enzyme-producing bacteria. The microbiota of biomass piles of Arundo donax, Eucalyptus camaldulensis and Populus nigra were evaluated by high-throu...
The transcriptional response of hybrid poplar (Populus trichocarpa x P. deltoides) to poplar leaf rust (Melampsora medusae) infection was studied using the Populus 15.5K cDNA microarray. Pronounced changes in the transcriptome were observed, with approximately 20% of genes on the array showing either induction or repression of transcription within the 9-day infection timecourse. A small number ...
Many plant species grow extrafloral nectaries and produce nectar to attract carnivore arthropods as defenders against herbivores. Two nectary types that evolved with Populus trichocarpa (Ptr) and Populus tremula × Populus tremuloides (Ptt) were studied from their ecology down to the genes and molecules. Both nectary types strongly differ in morphology, nectar composition and mode of secretion, ...
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