Physical modeling of the feedbacks between a patch of flexible Reed Canarygrass (Phalaris arundinacea), wake hydraulics, and downstream deposition

2018 ◽  
Vol 19 (1) ◽  
pp. 255-277
Author(s):  
Susan H. Elliott ◽  
Desirée D. Tullos ◽  
Cara Walter
Keyword(s):  
Physical Modeling ◽  
Phalaris Arundinacea ◽  
Reed Canarygrass

Effluent effects on the nutrient concentrations and growth of reed canarygrass (Phalaris arundinacea L.) and hybrid poplar (Populus deltoides × P. Petrowskyana L.)

2009 ◽  
Vol 89 (2) ◽  
pp. 223-234 ◽  
Author(s):  
S J Patterson ◽  
D S Chanasyk ◽  
M A Naeth ◽  
E. Mapfumo
Keyword(s):  
Kraft Pulp ◽  
Populus Deltoides ◽  
Hybrid Poplar ◽  
Pulp Mill ◽  
Phalaris Arundinacea ◽  
Nutrient Concentrations ◽  
Leaf Biomass ◽  
Reed Canarygrass ◽  
Kraft Pulp Mill ◽  
Pulp Mill Effluents

Using effluent as a source of irrigation water and to provide nutrients for plant growth is gaining favour as an environmentally positive practice instead of discharging effluent into surface water bodies. A growth chamber study was conducted to evaluate pulp mill wastewater as an irrigation source. This study evaluated the effects of water (TPW), municipal effluent (ME), and Kraft pulp mill effluent (KPME) and waste activated sludge (WAS) at rates of 1.5, 3, and 6 mm d-1 on available soil nutrients, nutrient uptake, and growth of reed canarygrass (Phalaris arundinacea L.) and hybrid poplar (Populus deltoides × P. petrowskyana L.). Increasing the application rate significantly increased biomass for both crops, but the KPME treatment significantly decreased leaf biomass of the hybrid poplar. Effluent applications did not result in toxic accumulations of nutrients within the analyzed tissues for either reed canarygrass or hybrid poplar. Only the WAS treatment significantly increased soil available concentrations of P, K, S, B, Mn, and Zn. Results of the study found lower irrigation rates of Kraft pulp mill effluents could be used as supplementary source and provide nutrients for reed canarygrass and hybrid poplar. Key words: Biomass, effluent irrigation, hybrid poplar, nutrient concentration, reed canarygrass

FEASIBILITY OF PRODUCTION OF COMMERCIAL HYBRIDS IN REED CANARYGRASS, Phalaris arundinacea L., USING A YELLOW-SEEDED MUTANT

1986 ◽  
Vol 66 (1) ◽  
pp. 111-116
Author(s):  
R. P. KNOWLES
Keyword(s):  
Seed Production ◽  
Seed Yield ◽  
Phalaris Arundinacea ◽  
Reed Canarygrass ◽  
High Degree ◽  
Forage Yields

A yellow-seeded mutant of reed canarygrass resulting from close breeding was used to produce F1 hybrids with normal black-seeded strains. The vigor of the yellow-seeded parent was below that of standard cultivars but seed yield was significantly higher. Forage yields of hybrids from the free interpollination with black-seeded strains were equal to, but not above, those of recommended cultivars. A high degree of effective hybridization (80% or more) was obtained when sib lines, selfed lines, or synthetics of the yellow-seeded mutant were grown in alternate rows with black-seeded strains. Alternate three-row (3 m) groups of parents in the hybrid crossing block were convenient for machine harvesting of seed and resulted in good hybridization.Key words: Reed canarygrass, heterosis, incompatibility, seed production, pollination

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