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1

Responses of physiological characteristics of annual C4 herbs to precipitation and wind changes in semi-arid sandy grassland, Northern China

100%
Sun S., Liu X., He Y., Lv P., Chelmeg, Zhang L., Wei S.
Polish Journal of Ecology
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2020
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tom 68
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nr 2
2

Life history strategy influences biomass allocation in response to limiting nutrients and water in an arid system

100%
Mao W., Allington G., Li Y.-L., Zhang T.-H., Zhao X.-Y., Wang S.-K.
Polish Journal of Ecology
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2012
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tom 60
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nr 3
The optimal partitioning theory (OPT) predicts that a plant should allocate relatively more biomass to the organs that acquire the most limiting resource. However, variation in biomass allocation among plant parts can also occur as a plant grows in size. As an alternative approach, allometric biomass partitioning theory (APT) asserts that plants should trade off their biomass between roots, stems and leaves, and this approach can minimize bias when comparing biomass allocation patterns by accounting for plant size in the analysis. We analyzed the biomass allocation strategy of the two species: annual Setaria viridis (L.) Beauv and perennial Pennisetum centrasiaticum Tzvel from the Horqin Sandy Land of northern China by treating them with different availabilities of soil nutrient and water (added in summer and winter), and hypothesized that the two species have different patterns of biomass allocation strategy in response to different soil water content and soil nitrogen content. After taking plant size into account, the biomass allocation strategy of S. viridis and P. centrasiaticum differed in response to nitrogen and water; leaves and root:shoot ratio (RTS) of S. viridis were “true” in response to various soil nitrogen contents. The plasticity of roots was also “true” in response to fluctuation in soil water content. However, P. centrasiaticum showed a different pattern with no shift of biomass allocation strategy in response to nitrogen and water. Adjustment in organs biomass allocation pattern of S. viridis in response to nitrogen and water limitation was dramatic, this suggested that S. viridis support optimal partitioning theory (OPT). P. centrasiaticum has better tolerance to varied environments and more likely support the allometric biomass partitioning theory (APT), this characteristic may allow P. centrasiaticum to keep dominance in fragile habitats.
3

Wystepowanie Cirsium arvense, Echinochloa crus-galli, Setaria glauca i S. viridis w roznych uprawach rolnych i typach gleb makroregionu lubelskiego

80%
Fijalkowski D., Sawa K., Taranowska B., Bloch M.
Annales Universitatis Mariae Curie-Sklodowska. Sectio C, Biologia
|
1992
|
tom 47
133-145
4
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A study on controlling Setaria viridis and Corchorus olitorius associated with Phaseolus vulgaris growth using natural extracts of Chenopodium album

80%
El-Rokiek K. G., El-Din S. A. S., Shehata A. N., El-Sawi S. A. M.
Journal of Plant Protection Research
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2016
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tom 56
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nr 2
The effects of water extracts of Chenopodium album leaves and roots on the growth of grass weed (Setaria viridis) and broad leaf weed (Corchorus olitorius) grown with beans (Phaseolus vulgaris) in greenhouse pots were studied in the National Research Centre, Giza, Egypt. In this experiment fresh leaf and root extracts and their corresponding dry leaf and root extracts at different concentrations were used. There were significant inhibitions in the dry weights of S. viridis and C. olitorius by all extracts at the flowering stage of beans and at harvest. The inhibition effect of all C. album extracts on both weeds (dry weight/pot) depended on the extracted plant organ (leaf or root), its fresh or dry form as well as its concentrations. The inhibition caused by the leaf extract was much higher on weed growth than that of root extract. A higher concentration of fresh leaf extract (25%) had the highest significant inhibition effect. The results also indicated that C. olitorius was more sensitive to the extracts than S. viridis. On the other hand, the inhibition effect of the extracts on the growth of both weeds was accompanied by increased bean growth and yield/plant. The analysis of both leaf and root extracts of C. album revealed that the total content of polyphenols and flavonoids in the leaf extract was more than triple that of the root extract. The results suggested that the fresh leaf extract of C. album may be a possible tool for the development of weed control using natural herbicides.
5

Bristle-grasses [Setaria, Poaceae] in Poland

80%
Rostanski K.
Fragmenta Floristica et Geobotanica
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1996
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tom 41
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nr 2
6

Zawartosc metali ciezkich w glebie i wybranych roslinach trawnikow przyulicznych aglomeracji bialostockiej

71%
Kiryluk A.
Roczniki Gleboznawcze
|
2008
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tom 59
|
nr 3-4
128-133
7

Pospolite chwasty polne jako potencjalne siedlisko bakterii patogenicznych dla kukurydzy

41%
Krawczyk K., Kamasa J., Zwolinska A., Mackowiak-Sochacka A.
Progress in Plant Protection
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2010
|
tom 50
|
nr 1
The aim of the performed investigation was to evaluate the role of common field weeds as a potential reservoir of maize pathogenic bacteria. The following weed species were used: Echinochloa crus-galli, Elymus repens, Poa annua, Alopecurus myesuroides, Setaria viridis, Digitaria sanguinalis, Lolium perenne, Lolium multiflorum, Apera spica-venti and Avena fatua. The mentioned plants were inoculated with the isolates of maize pathogenic bacteria and cultivated in the greenhouse for six weeks. The reisolation and reidentification of bacteria was performed from weed plants showing the symptoms of bacterial infection. Two weed species showed the symptoms of bacterial infection caused by three bacterial isolates. Obtained results showed that in favorable environmental conditions certain weed species may be infected by maize bacterial species like Pantoea ananatis and Erwinia dissolvens and may be considered as potential reservoir of maize pathogenic bacteria.
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