نتایج جستجو برای: populus euphratica

تعداد نتایج: 5545  

2016
Jianchao Ma Xiaodong He Xiaotao Bai Zhimin Niu Bingbing Duan Ningning Chen Xuemin Shao Dongshi Wan

Trichomes, which are widely used as an important diagnostic characteristic in plant species delimitation, play important roles in plant defense and adaptation to adverse environments. In this study, we used two sister poplar species, Populus pruinosa and Populus euphratica-which have, respectively, dense and sparse trichomes-to examine the genetic differences associated with these contrasting p...

2015
Hongbo Ling Pei Zhang Hailiang Xu Xinfeng Zhao

We found that the most suitable flooding disturbance model for regenerating Populus euphratica forest was two to three times per year with a duration of 15-20 days and an intensity of 25-30 m(3)/s. The flooding should take place during the seed emergence to young tree growth stages, and should be based on flooding experiments and data from vegetation quadrats and ecological water conveyance. Fu...

2014
Xiao-Dong Yang Xue-Ni Zhang Guang-Hui Lv Arshad Ali Han Y. H. Chen

The hydraulic redistribution (HR) of deep-rooted plants significantly improves the survival of shallow-rooted shrubs and herbs in arid deserts, which subsequently maintain species diversity. This study was conducted in the Ebinur desert located in the western margin of the Gurbantonggut Desert. Isotope tracing, community investigation and comparison analysis were employed to validate the HR of ...

2015
Hou-Ling Wang Lan Li Sha Tang Chao Yuan Qianqian Tian Yanyan Su Hui-Guang Li Lin Zhao Weilun Yin Rui Zhao Xinli Xia Ann Cuypers

Despite the unshakable status of reverse transcription-quantitative PCR in gene expression analysis, it has certain disadvantages, including that the results are highly dependent on the reference genes selected for data normalization. Since inappropriate endogenous control genes will lead to inaccurate target gene expression profiles, the validation of suitable internal reference genes is essen...

Journal: :رستنیها 0
فرزانه عادل دانش‎آموخته کارشناسی ارشد گروه بیماری شناسی گیاهی، دانشکده کشاورزی و منابع طبیعی، واحد علوم و تحقیقات دانشگاه آزاد اسلامی مهرداد عباسی دانشیار پژوهش بخش تحقیقات رستنی ها، مؤسسه تحقیقات گیاه پزشکی کشور سعید رضائی استادیار گروه بیماری شناسی گیاهی، دانشکده کشاورزی و منابع طبیعی، واحد علوم و تحقیقات دانشگاه آزاد اسلامی جمشید بوجاری مربی پژوهش، مؤسسه تحقیقات جنگل ها و مراتع کشور

during the study on rust mycobiota of central alborz, several rust infected specimens belonging to salicaceae family including populus and salix species were investigated. populus nigra, p. euphratica, saix alba and s. excelsa were infected by various melampsora species. uredinial (ii) and telial (iii) stages of rust were present on infected plants. according to morphological characters, five f...

2014
Jinhuan Chen Weilun Yin Xinli Xia

Heat stress, which strongly affects plant performance and often results in reduced vegetative growth and yields depression, has become an increasingly serious global problem. Populus euphratica Oliv. which has been considered as a tree model for the study of plant response to abiotic stresses, could be resistant to an extremely wide environmental temperature range (-40 °C to 45 °C). Previous st...

Journal: :Tree physiology 2013
J Li B Yu C Zhao Robert S Nowak Z Zhao Y Sheng J Li

Riparian plants in arid areas are subject to frequent hydrological fluctuations induced through natural flow variation and water use by humans. Although many studies have focused on the success of Tamarix ramosissima Ledeb. in its invaded ranges, its major competitor in its home range, Populus euphratica Oliv., historically has dominated riparian forests where both species occur naturally. Thus...

علی جعفری مفیدآبادی, علی رضا مدیر رحمتی

روش آزمایشگاهی نجات جنین به هدف جلوگیری از سقط جنین و تولید گیاه دو رگ، بین صنوبر کبوده و پده به صورت دوطرفه مورد استفاده قرار گرفت. تخمک و تخمدانهای تکامل یافته صنوبر کبوده پس از گرده افشانی به شیوه پیوند شاخه های گلدار بر روی نهال ها یکساله و روش ترکه و آب جدا شدند. روش مشابه در مورد گرده افشانی شاخه های گلدار صنوبر پده با دانه های گرده صنوبر کبوده به هدف تلاقی معکوس انجام شد. تخمک و تخمدان ج...

Journal: :Photosynthetica 2021

The saline character of water imposes restrictions on plant growth and survival in the Taklamakan Desert, China. Experiments were conducted woody species, Tamarix ramosissima, Populus euphratica, Haloxylon ammodendron grown under different levels salinity to elucidate their adaptation a environment. H. accumulated large amounts Na+ Cl- leaves. P. euphratica restricted redundant transport shoots...

Journal: رستنیها 2014
Farzaneh Adel, Jamshid Boujari Mehrdad Abbasi, Saeed Rezaei

During the study on rust mycobiota of Central Alborz, several rust infected specimens belonging to Salicaceae family including Populus and Salix species were investigated. Populus nigra, P. euphratica, Saix alba and S. excelsa were infected by various Melampsora species. Uredinial (II) and telial (III) stages of rust were present on infected plants. According to morphological characters, five f...

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