نتایج جستجو برای: rare plant

تعداد نتایج: 631143  

Journal: Journal of Herbal Drugs 2011
Asghar Shahrokhi, Hamzeh Ali Shirmardi, Hossain Mohammadi Najaf-abadi Mahmood Talebi

Background & Aim: The present study was to identify the medicinal plant species and introduced as one of the key priority areas for conservation and determination of endangered species were done. Experimental: The method of plant collection in this region was classical method of regional plant taxonomic studies. Collected plants were recognized and determined families, genera and species of th...

Journal: Journal of Herbal Drugs 2011
Asghar Shahrokhi, Hamzeh Ali Shirmardi, Hossain Mohammadi Najaf-abadi Mahmood Talebi

Background & Aim: The present study was to identify the medicinal plant species and introduced as one of the key priority areas for conservation and determination of endangered species were done. Experimental: The method of plant collection in this region was classical method of regional plant taxonomic studies. Collected plants were recognized and determined families, genera and species of th...

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

abstract previous researches have shown success of growth hormones usage on flower production increase, pod and prevention of abscission of them in some of the pulses. two tests were done, in order to find out the effects of growth hormones to on flower production increase, pod and chick pea yield composites in farmer conditions (2010-11) and green house conditions as factorial on the proje...

Journal: :Ecology letters 2008
Devon J Bradley Gregory S Gilbert Jennifer B H Martiny

Pathogens are thought to promote diversity in plant communities by preventing competitive exclusion. Previous studies have focussed primarily on single-plant, single-pathogen interactions, yet the interactions between multiple pathogens and multiple hosts may have non-additive impacts on plant community composition. Here, we report that both a bacterial and a fungal pathogen maintained the dive...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Nico Eisenhauer Tomasz Dobies Simone Cesarz Sarah E Hobbie Ross J Meyer Kally Worm Peter B Reich

Recent metaanalyses suggest biodiversity loss affects the functioning of ecosystems to a similar extent as other global environmental change agents. However, the abundance and functioning of soil organisms have been hypothesized to be much less responsive to such changes, particularly in plant diversity, than aboveground variables, although tests of this hypothesis are extremely rare. We examin...

2007

The term pyrrolizidine alkaloids (PAs) describes a group of more than 350 individual compounds that share as a basic structure one of the four necine bases platynecine, retronecine, heliotridine, or otonecine. PAs are produced as secondary metabolites of more than 6000 plant species, belonging to the families of Boraginaceae, Compositae (Asteraceae) and Leguminosae (Fabaceae) and occur world-wi...

2015
Åsa Lankinen Kristina Karlsson Green

Today it is accepted that the theories of sexual selection and sexual conflict are general and can be applied to both animals and plants. However, potentially due to a controversial history, plant studies investigating sexual selection and sexual conflict are relatively rare. Moreover, these theories and concepts are seldom implemented in research fields investigating related aspects of plant e...

2017
Lina Maloukh Alagappan Kumarappan Mohammad Jarrar Jawad Salehi Houssam El-wakil T. V. Rajya Lakshmi

DNA barcoding of United Arab Emirates (UAE) native plants is of high practical and scientific value as the plants adapt to very harsh environmental conditions that challenge their identification. Fifty-one plant species belonged to 22 families, 2 monocots, and 20 eudicots; a maximum number of species being legumes and grasses were collected. To authenticate the morphological identification of t...

2014
Dongxiao Niu Zongyun Song Jinpeng Liu

The evaluation on nuclear power plant operational safety performance had great significance on whether the nuclear power plant operated safely or not. Currently the academic literatures on nuclear power plant operational safety performance are rare. Improved Fuzzy evaluation model which introduce confidence level had been used into the evaluation of nuclear power plant operational safety perfor...

2013
R. K. SHARMA

Bunium persicum (Apiaceae) is a wild herbaceous plant growing in dry temperate region of Jammu & Kashmir, Himachal Pradesh and Uttar Pradesh (18003300 m). Seed is used as a prized condiment for flavoring dishes and as a carminative in ayurvedic medicines. The plant propagates by seeds and has been reported to have becomes a rare in its natural habitat because of excessive seed collection for co...

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