Results 161 to 170 of about 508,605 (311)

EFFECT OF DIFFERENT FACTORS ON GERMINATION AND TUBE GROWTH OF Solanum sisymbrifolium LAM. POLLEN

open access: yesAnnals of Tropical Research, 1988
Both germination and tube growth of Solanum sisymbrifolium Lam. pollen require an optimum temperature of 25°C and a growth medium containing 100 ppm boric acid, 10% sucrose and 0.6% Bacto-agar. Pollen germination was stimulated by 5 and 10 ppm GA3, 1-10
K.M. Kuruvilla   +3 more
doaj  

Youngstown Sheet and Tube Company's Campbell Works blast furnace 'D'

open access: yes, 1910
Construction for the final blast furnace, furnace "D," at the Youngstown Sheet and Tube Company's Campbell Works, was begun June 11, 1912. The furnace was blown in, or activated, on September 8, 1913. Several photographs document the construction of this
Youngstown Sheet and Tube Company
core  

Metabarcoding of Pollen Carried by Syrphids Reveals Novel Plant–Pollinator Interactions in a Protected Natural Area and Agricultural Sites

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Using DNA metabarcoding, this study investigates pollen transported by syrphids (Syrphidae) in the Dolomiti Bellunesi National Park and agricultural sites in Northern Italy. The analysis reveals a high diversity of visited plant taxa, including previously undocumented plant–pollinator interactions.
Serena Magagnoli   +6 more
wiley   +1 more source

Youngstown Sheet and Tube Company's Campbell Works blast furnace

open access: yes, 1930
Elevated view of the Youngstown Sheet and Tube Company's Campbell Works in East Youngstown (Campbell), Ohio. The four tallest structures are Campbell's blast furnaces, which were constructed between 1907 and 1913.
Youngstown Sheet and Tube Company
core  

Physiological Host Range of the Tachinid Istocheta aldrichi, a Potential Biological Control Agent for the Japanese Beetle in Europe

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
This study provides the first laboratory assessment of the physiological host range of Istocheta aldrichi, a candidate biological control agent for Popillia japonica in Europe. In sequential no‐choice tests with 14 European scarab beetles, the parasitoid oviposited on six species but successfully developed only in the two Rutelinae Anomala vitis and ...
Riccardo Valenti   +4 more
wiley   +1 more source

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside   +3 more
wiley  

+1 more source

Honeybees directly outcompete other flower visitors through interference competition on shared resource

open access: yesEcological Entomology, EarlyView.
The outcomes of encounters between honeybees and other flower visitors were observed on two plant species. Pollinators either win, lose or share a resource. Competitive interactions led to greater than expected ‘wins’ for honeybees. The honeybee displaced or gave chase when interacting with another pollinator in at least 20% of winning outcomes ...
Victoria A. Buckle   +3 more
wiley   +1 more source

Reactive oxygen species, antioxidants and the regulation of plant development

open access: yesThe FEBS Journal, EarlyView.
The regulation of axillary bud outgrowth by the interplay between phytohormone and redox signals. Axillary bud outgrowth is regulated by cellular energy status and the balance between phytohormones, notably abscisic acid (ABA) and gibberellic acid (GA).
Juwita R. Dewi   +2 more
wiley   +1 more source

Youngstown Sheet and Tube Company's Campbell Works track gang

open access: yes, 1920
It was important to keep the miles of railroad tracks at the Youngstown Sheet and Tube Campbell Works in top shape for moving materials in and out. To do this the company employed people whose sole job was to repair and clean the tracks.
Youngstown Sheet and Tube Company
core  

Home - About - Disclaimer - Privacy