نتایج جستجو برای: Rhododendron spp

تعداد نتایج: 51934  

ژورنال: :journal of ornamental plants 0
mahsa moshayedi young researchers and elite club, rasht branch, islamic azad university hadi rahanandeh member of department of agronomy and plant breeding, faculty of agriculture, islamic azad university, rasht branch alireza hamzeh english language department, arak branch, islamic azad university, arak, iran

اثر پنج قارچ کش و عصاره برگ تازه چای در برابر لکه برگی و آنتراکنوز آزالیا در طول فصل تابستان 1394 در آزمایشگاه دانشکده کشاورزی دانشگاه آزاد واحد رشت مورد آزمایش قرار گرفت. قارچ کش ها در غلظت های 1000، 2000 و 3000 پی پی ام تهیه و به منظور تعیین درصد بازدارندگی از رشد عوامل بیماری زا به کار برده شدند. اثر قارچ کش های مختلف bavistin 50wp، dithane m-45، aliette، benlate 50 wp و topsin m 70 wp روی ق...

Journal: :Zootaxa 2014
Shalva Barjadze Işil Özdemir

Rhododendraphis tuatayae gen. n., sp. n. living on Rhododendron sp. (Ericaceae) in Turkey is described based on apterous viviparous females. The new genus is morphologically most similar to Rostratusaphis Fang and Qiao, 2009, but differs in several important characters. Differences between the new genus and other aphid genera with a spinulose second tarsal segment living on Rhododendron spp. wo...

2004
Peter Bonants Els Verstappen Ineke de Vries Katarzyna Wiejacha Kelly Ivors

The genus Phytophthora comprises over 70 described species, however many new species have been reported recently as a result of the discovery of previously undetected species or by the hybridization of known species. Phytophthora ramorum, one of the new Phytophthora species, is considered a high phytosanitary risk because it is currently responsible for largescale oak mortality in coastal Calif...

2003
Kaspar Ruoff Werner Luginbühl Stefan Bogdanov Jacques-Olivier Bosset Verena Kilchenmann Barbara Estermann Thomas Ziolko Sohrab Kheradmandan Renato Amadò

321 honey samples from Switzerland were collected. The botanical authenticity of 176 honey samples was confirmed by the determination of electrical conductivity, sugar composition, pH-value, free acidity, and microscopical pollen analysis [2], as well as the sensory evaluation by three experts. The honey samples were assigned to one of the following groups: floral honeys from acacia (Robinia sp...

Journal: : 2022

Rhododendrons are some of the most attractive flowering shrubs in landscape. The article presents results studying common problems Rhododendron collection Central Botanical Garden National Academy Sciences Belarus, conducted 2012-2020. There several diseases and pests that commonly occur on rhododendrons every year. These include powdery mildew ( Erysiphe azaleae ), fungal leaf spots Pestalotio...

2017
Linchuan Fang Jun Tong Yanfang Dong Dongyun Xu Jing Mao Yuan Zhou

Rhododendron spp. is an important ornamental species that is widely cultivated for landscape worldwide. Heat stress is a major obstacle for its cultivation in south China. Previous studies on rhododendron principally focused on its physiological and biochemical processes, which are involved in a series of stress tolerance. However, molecular or genetic properties of rhododendron's response to h...

2001
JAMES M. VOSE

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...

Journal: :E3S web of conferences 2021

Panxi region is an important origin and distribution center of wild Rhododendron spp., which has ornamental tourism development value. This study investigated the present situation resources in Sichuan Province, analyzed species number, horizontal distribution, vertical correlation with existing scenic spots traffic accessibility, put forward prospect suggestions making full use rich area for b...

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