نتایج جستجو برای: in situ conservation

تعداد نتایج: 16996006  

2005
KERRIE WILSON ROBERT L. PRESSEY

CHRIS WESTON Forest Science Centre University of Melbourne Creswick, Victoria, 3363, Australia ABSTRACT / Conservation planning is the process of locating and designing conservation areas to promote the persistence of biodiversity in situ. To do this, conservation areas must be able to mitigate at least some of the proximate threats to biodiversity. Information on threatening processes and the ...

2017
Shi-Cheng Shao Kevin S. Burgess Jennifer M. Cruse-Sanders Qiang Liu Xu-Li Fan Hui Huang Jiang-Yun Gao

Due to increasing demand for medicinal and horticultural uses, the Orchidaceae is in urgent need of innovative and novel propagation techniques that address both market demand and conservation. Traditionally, restoration techniques have been centered on ex situ asymbiotic or symbiotic seed germination techniques that are not cost-effective, have limited genetic potential and often result in low...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه لرستان - دانشکده کشاورزی 1390

در این تحقیق تأثیر موقعیت جغرافیایی و توپوگرافی بر ارزش خوراکی علوفه خشک یونجه چین-دوم چهار منطقه مختلف استان کردستان (سنندج و کامیاران، بانه و مریوان، سقز و دیواندره و قروه، دهگلان و بیجار) بر اساس 1- آنالیز شیمیایی 2- مقدار انواع انرژی 3- کینتیک تجزیه پذیری پروتئین، ماده خشک و ماده آلی به روش کیسه های نایلونی (in situ) 4- تعیین ساختار مولکولی-شیمیایی به روش اسپکتروسکوپیftir بررسی شد. نتایج آن...

2016
Yoshiaki NAKAMURA

The majority of poultry genetic resources are maintained in situ in living populations. However, in situ conservation of poultry genetic resources always carries the risk of loss owing to pathogen outbreaks, genetic problems, breeding cessation, or natural disasters. Cryobanking of germplasm in birds has been limited to the use of semen, preventing conservation of the W chromosome and mitochond...

2013
Ming Li Zhong Zhao Xingjun Miao Jingjing Zhou

The genetic diversity and population genetic structure of 252 accessions from 21 Prunus sibirica L. populations were investigated using 10 ISSR, SSR, and SRAP markers. The results suggest that the entire population has a relatively high level of genetic diversity, with populations HR and MY showing very high diversity. A low level of inter-population genetic differentiation and a high level of ...

Journal: :Sustainability 2021

The study presents an updated overview of the 14 non-endemic threatened crop wild relatives (CWR) in Italy: Aegilops biuncialis, Ae. uniaristata, ventricosa, Asparagus pastorianus, Beta macrocarpa, Brassica insularis, B. montana, Crambe hispanica subsp. hispanica, C. tataria tataria, Ipomoea sagittata, Lathyrus amphicarpos, L. palustris, Vicia cusnae and V. serinica. Geographical distribution, ...

Journal: :Journal of Fruit and Ornamental Plant Research 2012

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