نتایج جستجو برای: f muell eucalyptus microtheca
تعداد نتایج: 313461 فیلتر نتایج به سال:
We examined relationships between stem diameter, sapwood area, leaf area and transpiration in a 15-year-old mountain ash (Eucalyptus regnans F. Muell.) forest containing silver wattle (Acacia dealbata Link.) as a suppressed overstory species and mountain hickory (Acacia frigescens J.H. Willis) as an understory species. Stem diameter explained 93% of the variation in leaf area, 96% of the variat...
The internal conductance to CO2 supply from substomatal cavities to sites of carboxylation poses a large limitation to photosynthesis. It is known that internal conductance is decreased by soil water deficits, but it is not known if it is affected by atmospheric water deficits (i.e. leaf to air vapour pressure deficit, VPD). The aim of this paper was to examine the responses of internal conduct...
The effect of light on the partitioning of resources between photosynthesis and chemical defence was studied in Eucalyptus cladocalyx F. Muell. This species allocates up to 15% of leaf nitrogen to the constitutive cyanogenic glycoside, prunasin, making it an ideal system for studying resource allocation. By controlling the level of leaf nitrogen we were able to test the hypothesis that light li...
بذر E. microtheca در محیط MS بدون هورمون کاشته شد و ریزنمونههای برگ کوتیلدونی، هیپوکتیل و دیسک برگی از گیاهچههای رشد یافته جدا گردید. ریزنمونهها در محیط MS با نیمی از مقادیر نیترات و حاوی 12 غلظت متفاوت از هورمونهای NAA و Kin کشت گردیدند. ریزنمونههای کشت شده، در فتوپریود 16 ساعت روشنایی و 8 ساعت تاریکی به ترتیب در 25 و 19 درجه سانتیگراد نگهداری شدند. پس از 4 هفته باززایی انجام شد. طی ت...
Phebarudol, a novel prenylated p-coumarate, was isolated from the twigs of Phebalium rude Bartl. subsp. amblycarpum (F. Muell.) P. G. Wilson (Rutaceae) together with the two already known related compounds, werneria chromene and methyl demethoxywutaiensate. The structure of phebarudol was established by spectroscopic methods.
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