نتایج جستجو برای: potamogeton crispus

تعداد نتایج: 786  

Journal: :The Japanese Journal of Veterinary Science 1984

2006
D. B. South

In the South, most nursery managers have relied on methyl bromide for weed control in hardwood seedbeds. When methyl bromide is no longer available, handweeding times will likely increase unless management regimes adapt to the change. Some nursery managers will increase use of both sanitation practices and herbicides. Although several herbicides are registered for use on hardwoods, some can inj...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده کشاورزی 1392

خانواده تفریتیده یکی از بزرگ ترین خانواده های دوبالان محسوب می شود که تقریبا 4400 گونه از آن ها از زیست بوم های مختلف در دنیا شناسایی شده اند. به افراد این خانواده مگس های میوه می-گویند زیرا اکثر گونه ها روی میوه ها و سایر اندام های حامل دانه گیاهان در حال رشد زندگی می کنند. حشرات کامل این خانواده در روی گل ها و اطراف درختان میوه مشاهده می شوند در حالی که لارو-های آن با تغذیه از گوشت میوه، باعث...

Journal: :Arzneimittel-Forschung 1964
D P MERTZ H KEINE

Four important categories of urologic herbs, their history, and modern scientific investigations regarding them are reviewed. Botanical diuretics are discussed with a focus on Solidago spp (goldenrod) herb, Levisticum officinale (lovage) root, Petroselinum crispus (parsley) fruit, and Urtica dioica (stinging nettle) herb. Urinary antiseptic and anti-adhesion herbs, particularly Arctostaphylos u...

Journal: :Journal of Lake Sciences 2021

??????????????????????????????????????????????????????.2016?7????????????????????????????2011???????????????????????1980s?????70%??????1960s?????Ottelia acuminata????????Stuckenia pectinata??????Najas marina???????????Potamogeton maackianus??????Ceratophyllum demersum??????Vallisneria natans?.???????????0~2.5 m???????????????Trapa maximowiezii????????????????????2.5~4 m?????????????????????????...

2016
Tao Wan Qingxiang Han Ling Xian Yu Cao Apudo A. Andrew Xiaojie Pan Wei Li Fan Liu

Reproductive allocation is a key process in the plant life cycle and aquatic plants exhibit great diversity in their reproductive systems. In the present study, we conduct a field investigation of three aquatic macrophytes: Stuckenia pectinata, Myriophyllum spicatum, and Potamogeton perfoliatus. Our results showed that widespread species, including S. pectinata and M. spicatum had greater plast...

2012
Dehua Zhao Dong Xie Hengjie Zhou Hao Jiang Shuqing An

Non-destructive estimation using digital cameras is a common approach for estimating leaf area index (LAI) of terrestrial vegetation. However, no attempt has been made so far to develop non-destructive approaches to LAI estimation for aquatic vegetation. Using the submerged plant species Potamogeton malainus, the objective of this study was to determine whether the gap fraction derived from ver...

2007
Shaowen Ye Zhongjie Li Sithan Lek-Ang Guangpeng Feng Sovan Lek Wenxuan Cao

This study describes the current status of the small fish community in Niushan Lake in China, and examines the spatial and seasonal variations of the community in relation to key environmental factors. Based on macrophyte cover conditions, the lake was divided into three major habitat types: (1) Potamogeton maackianus habitat, (2) Potamogeton maackianus and Myriophyllum spicatum habitat, and (3...

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