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One hundred years into the study of ecotypes, new advances are being made through large-scale field experiments in perennial plant systems
EvolutionLocal adaptationNatural selectionGenomicsClimate changeTrade-off
2023/11/28
A hundred years after Turesson first clearly described how locally adaptive variation is distributed within species, plant biologists are making major breakthroughs in our understanding of mechanisms ...
Changes in weed species spectrum of perennial weeds on arable land, meadows and pastures
expansion perennial weeds
2015/3/3
Occurrence of selected perennial weeds has been monitored at control sites across the Czech Republic since 1989, and trends of their occurrence have been evaluated. The monitoring has been aimed mainl...
Spread Dynamics of Perennial Pepperweed (Lepidium latifolium) in Two Seasonal Wetland Areas
Wetlands riparian spread dynamics invasion spatial spread population growth
2015/12/26
Perennial pepperweed is an invasive plant that is expanding rapidly in several plant communities in the western United States. In California, perennial pepperweed has aggressively invaded seasonal wet...
Manganese delays the senescence induced by drought in perennial ryegrass (Lolium perenne L.)
Manganese senescence oxidants antioxidative enzymes
2011/1/13
Manganese (Mn) is an important micronutrient in plant development. In order to test its capability to delay the senescence related oxidative stress in perennial ryegrass (Lolium perenne L.); a pot exp...
Symbiosis of nodule bacteria with perennial xerophyte leguminous plants of Central Asia
Ammodendron conollyi Astragalus villossimus Astragalus unifoliolatus
2013/3/5
From nodules of perennial xerophyte desert leguminous plants – Ammodendron conollyi, Astragalus villossimus, Astragalus unifoliolatus – 151 bacterial isolates have been isolated. The study of nodulati...
The first harvest of a dryland perennial wheat crop has taken place in NSW this summer and researchers are hoping for more to follow.Industry & Investment (I&I) NSW research agronomist, Richard Hayes,...
Growth of an Annual Strain of Oryza glaberrima Steud. and a Perennial Cultivar of Oryza sativa L. after Heading
Annual Food reserves Harvest index Monocarpic annual Oryza glaberrima Steud
2009/7/31
The growth of W492 (an annual strain of Oryza glaberrima Steud.) and Koshihikari (a perennial cultivar of Oryza sativa L.) after heading were compared to determine the growth characteristics of annual...
Cold- or Heat-Tolerance of Leaves and Roots in Perennial Ryegrass Determined by 1H-NMR
Arrhenius plots Cold stress Dynamic states of water Heat stress NMR relaxation times (T1,T2) Organ Perennial ryegrass Water compartment
2009/7/28
Dynamic states of water in the leaves and roots of perennial ryegrass (Lolium perenne L.) exposed to cold and heat stresses were studied by using 1H-NMR. NMR spin-lattice relaxation times (T1) of leav...
Difference in δ15N Signatures among Plant Parts of Perennial Species Subjected to Drought Stress with Special Reference to the Contribution of Symbiotic N2-fixation to Plant N
Actinorhizal plant δ15N 15N natural abundance method Nitrogen fixation Perennial plant
2009/7/24
The 15N natural abundance method has been widely used for evaluation of symbiotic N2-fixation. The method inevitably requires a reference plant that reflects soil derived δ15N similar to that in a N2-...
Photosynthetic Recovery of a Perennial Grass Leymus chinensis after Different Periods of Soil Drought
Carbonic anhydrase Chlorophyll fluorescence Drought adaptation Gas exchange Leymus chinensis (Trin.) Tzvel. Rewatering
2009/7/23
The effects of rewatering after different periods of soil drought stress on the photosynthetic capacity of Leymus chinensis in pots were investigated. The plants were subjected to short-term (10-d), m...
Growth and Flowering of Annual and Perennial Landscaping Plants Grown Under Reduced Maintenance for Five Years
Perennial Landscaping Plants Maintenance Growth Flowering
2009/7/13
To study characteristic of ornamental plants used for landscaping, 16 annuals and 24 perennials were sown on Sep. 19, 1996 and grown under reduced maintenance for 5 years. Species studied can be divid...
Effect of perennial grasses ploughed in as green manure on the occurence of net blotch in spring barley
perennial grasses Drechslera teres net blotch disease incidence severity spring barley
2010/1/19
Effect of perennial grasses ploughed in as green manure on the occurence of net blotch in spring barley.
Perennial grasslands and agroenvironmental programme effects
grasslands agroenvironmental programmes organic farming subventions
2010/1/19
Farming on grasslands is an important part of organic faming. There is a perceptible
trend of increasing acreages of grasslands in organic farming in the Czech republic too.
Adjustment of subvent...
Perennial weed control by two layer ploughing
perennial weeds weediness organic agriculture two layer ploughing
2010/1/19
Experiments on methods of perennial weed control were carried out at the
organic farm of Lithuanian University of Agriculture in the period 2002-2003. The aim of the
work was to investigate the in...
The variation of mobile humic acids and mineral nitrogen in the soil as affected by the use of perennial grasses for green manure
perennial grasses mobile humic acids mineral nitrogen Cambisol
2010/1/19
The paper presents the findings of the experiments conducted on a clay loam gleyic
Cambisol mical Research in 20072008. The tests were designed to establish the effects of the use of perennial grass...