نتایج جستجو برای: rudbeckia

تعداد نتایج: 122  

2014
Lisa Horth Laura Campbell Rebecca Bray

Here, we report on the results of an experimental study that assessed the visitation frequency of wild bees to conspecific flowers with different sized floral guides. UV absorbent floral guides are ubiquitous in Angiosperms, yet surprisingly little is known about conspecific variation in these guides and very few studies have evaluated pollinator response to UV guide manipulation. This is true ...

Journal: :Circulation. Cardiovascular imaging 2017
Brian D Hoit

Factors Associated With Left Atrial Remodeling in the General Population Walter Oliver; Gwendolyn Matthews, BS; Colby R. Ayers, MS; Sonia Garg, MD; Sachin Gupta, MD; Ian J. Neeland, MD; Mark H. Drazner, MD, MSc; Jarett D. Berry, MD, MS; Susan Matulevicius, MD, MSc; James A. de Lemos, MD · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·...

Journal: :Environmental pollution 2012
Howard S Neufeld Seth J Peoples Alan W Davison Arthur H Chappelka Greg L Somers Jill E Thomley Fitzgerald L Booker

Ozone-sensitive and -tolerant individuals of cutleaf coneflower (Rudbeckia laciniata L.) were compared for their gas exchange characteristics and total non-structural carbohydrates at Purchase Knob, a high elevation site in Great Smoky Mountains National Park, USA. Photosynthesis and stomatal conductance decreased with increased foliar stipple. Sensitive plants had lower photosynthetic rates fo...

2014
Chang-Gi Back Gu-Youn Nam Seung-Yeol Lee Hee-Young Jung

From June to October 2012, severe outbreaks of rust disease on Solidago virgaurea var. gigantea were observed in 5 different regions of Ulleung-do, Korea. Typical rust symptoms appeared as yellow spots, uredinia on leaves, and massive urediniospores covering the entire plant. Severely infected plants became discolored and died. On the basis of its morphological and molecular characteristics, th...

Journal: :Journal of nematology 2000
J Kimpinski W J Arsenault C E Gallant J B Sanderson

Root-lesion nematodes (primarily Pratylenchus penetrans) were monitored in two marigold cultivars (Tagetes tenuifolia cv. Nemakill and cv. Nemanon), annual ryegrass (Lolium multiflorum cv. Lemtal), red clover (Trifolium pratense cv. Florex), and soybean (Glycine max cv. Proteus), and in the following potato (Solanum tuberosum cv. Superior) crop during three growth sequences. Meadow fescue (Fest...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید