Results 111 to 120 of about 89,724 (258)

Tillering in grain sorghum over a wide range of population densities: identification of a common hierarchy for tiller emergence, leaf area development and fertility.

Annals of Botany, 2002
T. Lafarge, I. Broad, G. L. Hammer
semanticscholar   +1 more source

Russian wheat aphid: a model for genomic plasticity and a challenge to breeders

Insect Science, EarlyView.
Invasive foundress finds suitable habitat and reproduces through pathogenesis. Wingless females produce life offspring quickly, which leads to high population densities. High population densities result in competition, which may induce epigenetic changes and wing development for dispersal.
Astrid Jankielsohn, Vicky L. Tolmay, Marlon‐Schylor Luke le Roux, Lintle Mohase, Mpho S. Mafa, Vittorio F. Nicolis, Eduard Venter, Nicolaas Francois Visser Burger, Anna‐Maria Botha   +8 more
wiley   +1 more source

Tillering in grain sorghum over a wiide range of population densities: modelling dynamics of tiller fertility.

Annals of Botany, 2002
T. Lafarge, G. L. Hammer
semanticscholar   +1 more source

The phenological growth stages, heat unit requirement and anti‐tyrosinase activity of Greyia radlkoferi Szyszyl

Annals of Applied Biology, EarlyView.
Phenological growth stages of Greyia radlkoferi: The phenological growth stages of Greyia radlkoferi were monitored for a period of 3 years from 2018, 2019 and 2020. The flower budding, bud burst, flowering, fading, fruiting, seeding, leaf senescence and vegetative stage were recorded. The tyrosinase inhibitory activity of G.
Joseph Malele, Riana Kleynhans, Babalwa Matsiliza‐Mlathi, Gerhard Prinsloo   +3 more
wiley   +1 more source

‘Candidatus Phytoplasma solani’: From infection to all‐round characterisation of distinct tuf‐type strains with different virulence in tomato plants

Annals of Applied Biology, EarlyView.
‘Candidatus Phytoplasma (Ca. P.) solani’ is associated with bois noir (BN) of grapevine and stolbur of solanaceous plants and is primarily transmitted by Hyalesthes obsoletus Signoret. Four tuf‐a and five tuf‐b1 ‘Ca. P. solani’ strains were transmitted to tomato plants (cv. Micro‐Tom) by using bait‐plants and by capturing H.
Gaia Carminati, Francesco Pavan, Chiara Bernardini, Diana Sommaro, Abderraouf Sadallah, Rita Musetti, Paolo Ermacora, Marta Martini   +7 more
wiley   +1 more source

Validation of the prognosis model SIMAGRIO‐W to predict larval activity in top soil layers for Agriotes larvae in eastern Austria Validierung des Prognosemodells SIMAGRIO‐W zur Vorhersage der Aktivität von Agriotes‐Larven in den obersten Bodenschichten in Ostösterreich

Agricultural and Forest Entomology, EarlyView.
Wireworms migrate within the soil column depending on the temperature and moisture content of the soil. SIMAGRIO‐W model accuracy comparison between Germany and Austria. Different temperature preferences highlight the need for species‐specific modelling.
Katharina Wechselberger, Patrick Hann, Claus Trska, Rudolf Schmid, Birgit Putz, Josef Eitzinger, Janette Jung, Karin Wastian, Michael Traugott, Bernhard Kromp   +9 more
wiley   +1 more source

Degree of insecticide exposure and access to nectar impact survival of Trissolcus japonicus, a hymenopteran parasitoid, in flowering border strips

Agricultural and Forest Entomology, EarlyView.
We applied three thiamethoxam spray treatments to buckwheat border strips: control (no nearby spray), drift (adjacent peach trees directly sprayed) and direct spray (buckwheat and peaches directly sprayed). Drift‐treated buckwheat received about 1.4% the amount of thiamethoxam as direct‐spray buckwheat. This amount has no lethal effects on parasitoids,
Emma O. Waltman, Anne L. Nielsen
wiley   +1 more source

Synchronism of leaf and tiller emergence relative to position and to main stem development stage in a rice cultivar.

Annals of Botany, 2004
S. Jaffuel, J. Dauzat
semanticscholar   +1 more source

Comments on ‘Late Middle Pleistocene Wolstonian Stage (MIS 6) glaciation in lowland Britain and its North Sea regional equivalents – a review’

Boreas, EarlyView.
Divergent views debated over the past 20 years on the Wolstonian depositional record of Fenland and the Peterborough area have centred on whether there is evidence of a single (middle or late) glaciation or of both a middle and a late glaciation. A recent review promoted a single late Wolstonian glaciation, despite there being incontrovertible evidence
Harry E. Langford
wiley   +1 more source

Luminescence analysis of a postglacial landscape in northeastern Norway and northern Finland

Boreas, EarlyView.
Portable optically stimulated luminescence (pOSL) analysis allows rapid relative dating of sediments that potentially can be calibrated against known OSL ages to provide an age estimate for landforms across a large area. This study uses 186 pOSL measurements and 20 OSL ages to investigate the postglacial landscape evolution inside the Younger Dryas ...
Alastair Goodship, Helena Alexanderson, Joanna Anjar   +2 more
wiley   +1 more source