نتایج جستجو برای: autumnal sowing

تعداد نتایج: 6407  

Journal: :The Journal of experimental biology 2006
A Tomcala M Tollarová J Overgaard P Simek V Kostál

Adults of the insect Pyrrhocoris apterus acquire chill tolerance through the process of autumnal acclimatization. Field and laboratory experiments were conducted to separate the triggering effects of low temperatures, desiccation and diapause progression on the physiological characteristics related to chill tolerance with emphasis on the restructuring of glycerophospholipid (GPL) composition. C...

Journal: :Geospatial health 2007
Annapaola Rizzoli Markus Neteler Roberto Rosà Walter Versini Antonio Cristofolini Marco Bregoli Alan Buckley Ernest A Gould

New human cases of tick-borne encephalitis (TBE) have recently been recorded outside the recognised foci of this disease, i.e. in the province of Trento in northern Italy. In order to predict the highest risk areas for increased TBE virus activity, we have combined cross-sectional serological data, obtained from 459 domestic goats, with analysis of the autumnal cooling rate based on Moderate Re...

Journal: :Remote Sensing 2014
Hao Yang Zengyuan Li Erxue Chen Chunjiang Zhao Guijun Yang Raffaele Casa Stefano Pignatti Qi Feng

Spatial monitoring of the sowing date plays an important role in crop yield estimation at the regional scale. The feasibility of using polarimetric synthetic aperture radar (SAR) data for early season monitoring of the sowing dates of oilseed rape (Brassica napus L.) fields is explored in this paper. Polarimetric SAR responses of six parameters, relying on polarization decomposition methods, we...

Afsoon Khodadadi Marzeah Torabinia Mona Moalemi, Zeinab Ashori,

In the current investigation, evaporation and transpiration potential were also estimated by means of FAO Penman- Monteith evapotranspiration estimation method and Deviation from Optimum Percentage (DOP) technique by climatic elements (min-max temperature, relative humidity, wind speed and radiation) during at least 10 years statistical period regarding sunflower phenological conditions in Kurd...

Journal: :international journal of advanced biological and biomedical research 2014
zeinab ashori mona moalemi afsoon khodadadi marzeah torabinia

in the current investigation, evaporation and transpiration potential were also estimated by means of fao penman- monteith evapotranspiration estimation method and deviation from optimum percentage (dop) technique by climatic elements (min-max temperature, relative humidity, wind speed and radiation) during at least 10 years statistical period regarding sunflower phenological conditions in kurd...

2017
Hongjun Liu Lin Zhang Jiechen Wang Changsheng Li Xing Zeng Shupeng Xie Yongzhong Zhang Sisi Liu Songlin Hu Jianhua Wang Michael Lee Thomas Lübberstedt Guangwu Zhao

Deep-sowing is an effective measure to ensure seeds absorbing water from deep soil layer and emerging normally in arid and semiarid regions. However, existing varieties demonstrate poor germination ability in deep soil layer and some key quantitative trait loci (QTL) or genes related to deep-sowing germination ability remain to be identified and analyzed. In this study, a high-resolution geneti...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Håvard Kauserud Leif Christian Stige Jon Olav Vik Rune H Okland Klaus Høiland Nils Chr Stenseth

Many species of fungi produce ephemeral autumnal fruiting bodies to spread and multiply. Despite their attraction for mushroom pickers and their economic importance, little is known about the phenology of fruiting bodies. Using approximately 34,500 dated herbarium records we analyzed changes in the autumnal fruiting date of mushrooms in Norway over the period 1940-2006. We show that the time of...

2014
Adrienn Novák

The field research was carried out at the Látókép AGTC KIT research area of the University of Debrecen in EasternHungary, on the area of the aeolain loess of the Hajdúság. We examined the effects of the sowing time on the phytopathogenic characteristics and yield production by applying various fertilizer treatments on two different sunflower genotypes (NK Ferti, PR64H42) in 2012 and 2013. We ap...

2003
BRYAN L. FOSTER DAVID TILMAN

1 We present results from a long-term sowing experiment conducted in nutrient-poor savanna grassland in eastern Minnesota. We examine the effects of a one-time seed addition of 23 grassland species on plant community dynamics and structure over eight growing seasons. 2 Our goals were to: (i) test the importance of seed availability in regulating plant colonization dynamics and species richness;...

2017
Izzadora K.S. Andrew Jonathan Storkey

With the increasing pressure on crop production from the evolution of herbicide resistance, farmers are increasingly adopting Integrated Weed Management (IWM) strategies to augment their weed control. These include measures to increase the competitiveness of the crop canopy such as increased sowing rate and the use of more competitive cultivars. While there are data on the relative impact of th...

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