INHIBITORY EFFECT OF AQUEOUS EXTRACTS FROM REED CANARY GRASS (PHALARIS ARUNDINACEA L.) ON THE DEVELOPMENT OF SELECTED WEED SPECIES

Author(s):  
Hanna Gołębiowska ◽  
◽  
Renata Kieloch ◽  
Jakub Topolski ◽  
◽  
...  
2014 ◽  
Vol 67 (4) ◽  
pp. 67-74
Author(s):  
Tomasz R. Sekutowski ◽  
Bartłomiej Karamon ◽  
Józef Rola ◽  
Henryka Rola

The present experiment, carried out in nine production fields of reed canary grass (<em>Phalaris arundinacea</em>) grown for energy purposes, evaluated the effect of plantation age on the occurrence and species composition of weeds. The selected plantations were divided into 3 groups that were conventionally called “young” (1–2 years old), “middle-aged” (3–5 years old), and “older” plantations (6–8 years old). Regardless of plantation age, altogether 43 species were found in the experimental fields. Moreover, 6 species were common for all the plantations and were found in them regardless of plantation age. The least species, only 18, were found on the “young” plantations, almost twice more on the “older” ones (30 species), whereas the largest spectrum of species was found in the “middle-aged” plantations (33 species). In the “young” plantations, annual weeds were the most common, with the highest constancy and coverage index found for <em>Chenopodium album</em>, <em>Matricaria maritima ssp. inodora</em> and <em>Echinochloa crus-galli</em>. The greatest variation in species was found in the “middle-aged” plantations. However, only 4 species achieved the highest constancy and coverage index: <em>Matricaria maritima ssp. inodora</em>, <em>Cirsium arvense, Poa trivialis</em> and <em>Taraxacum officinale</em>. Furthermore, perennial weeds were found to be dominant in the “older” plantations. Within this group, <em>Poa trivialis, Taraxacum officinale, Urtica dioica, Plantago maior</em>, and <em>Cirsium arvense</em> had the highest constancy and coverage index.


Wetlands ◽  
2007 ◽  
Vol 27 (3) ◽  
pp. 644-655 ◽  
Author(s):  
Eileen M. Kirsch ◽  
Brian R. Gray ◽  
Timothy J. Fox ◽  
Wayne E. Thogmartin

1976 ◽  
Vol 56 (4) ◽  
pp. 837-845 ◽  
Author(s):  
B. E. COULMAN ◽  
D. L. WOODS ◽  
K. W. CLARK

Fifty-two strains of reed canary grass (Phalaris arundinacea L.) were screened for the presence of tryptamines and carbolines and for concentrations of gramine. Most strains contained genotypes free of tryptamines and carbolines and showed wide interplant variation in gramine levels. Gramine data between years were highly correlated, indicating high broad sense heritability. It was concluded that there exists a diverse gene pool from which to select tryptamine–carboline-free, low-gramine strains of reed canary grass. An improved method for the determination of gramine concentration is described.


Holzforschung ◽  
1997 ◽  
Vol 51 (2) ◽  
pp. 130-134 ◽  
Author(s):  
Sari Galkin ◽  
Erja Ämmälahti ◽  
Ilkka Kilpeläinen ◽  
Gösta Brunow ◽  
Annele Hatakka

2019 ◽  
Vol 124 (4) ◽  
pp. 717-730 ◽  
Author(s):  
Manfred Klaas ◽  
Niina Haiminen ◽  
Jim Grant ◽  
Paul Cormican ◽  
John Finnan ◽  
...  

Abstract Background and Aims Perennial grasses are a global resource as forage, and for alternative uses in bioenergy and as raw materials for the processing industry. Marginal lands can be valuable for perennial biomass grass production, if perennial biomass grasses can cope with adverse abiotic environmental stresses such as drought and waterlogging. Methods In this study, two perennial grass species, reed canary grass (Phalaris arundinacea) and cocksfoot (Dactylis glomerata) were subjected to drought and waterlogging stress to study their responses for insights to improving environmental stress tolerance. Physiological responses were recorded, reference transcriptomes established and differential gene expression investigated between control and stress conditions. We applied a robust non-parametric method, RoDEO, based on rank ordering of transcripts to investigate differential gene expression. Furthermore, we extended and validated vRoDEO for comparing samples with varying sequencing depths. Key Results This allowed us to identify expressed genes under drought and waterlogging whilst using only a limited number of RNA sequencing experiments. Validating the methodology, several differentially expressed candidate genes involved in the stage 3 step-wise scheme in detoxification and degradation of xenobiotics were recovered, while several novel stress-related genes classified as of unknown function were discovered. Conclusions Reed canary grass is a species coping particularly well with flooding conditions, but this study adds novel information on how its transcriptome reacts under drought stress. We built extensive transcriptomes for the two investigated C3 species cocksfoot and reed canary grass under both extremes of water stress to provide a clear comparison amongst the two species to broaden our horizon for comparative studies, but further confirmation of the data would be ideal to obtain a more detailed picture.


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