Ploidy, water, and nitrogen effects on Russian wildrye chemical composition

Autor:	Albert B. Frank, J. F. Karn, John D. Berdahl, W.W. Poland
Rok vydání:	2004
Předmět:	Agropyron desertorum Ecology biology fungi food and beverages Growing season Psathyrostachys juncea Management Monitoring Policy and Law biology.organism_classification Inflorescence Agronomy Anthesis Seedling Grazing Animal Science and Zoology Dry matter Nature and Landscape Conservation
Zdroj:	Rangeland Ecology & Management. 57:503
ISSN:	1551-5028 1550-7424
DOI:	10.2111/1551-5028(2004)057\[0503:pwaneo\]2.0.co;2
Popis:	Russian wildrye [Psathyrostachys juncea (Fisch.) Nevski], a cool-season introduced bunchgrass, offers producers an alternative to crested wheatgrass [Agropyron desertorum (Fisch. ex Link) Schultes] for spring and fall grazing in the Northern Great Plains. Tetraploid Russian wildrye with improved seedling establishment may offer even greater potential for seasonal grazing. This study investigates how the concentrations of some nutritive quality components in leaf, stem, and inflorescence tissue of diploid and tetraploid Russian wildrye were affected by growing season water (50 and 150% of average precipitation) and fertilizer (10 and 134 kg N ha−1). Plants were sampled at vegetative, boot, anthesis, and anthesis plus 10-day stages of maturity in 1994, 1995, and 1996. Tetraploid plants had slightly (P < 0.05) less crude protein (CP) in leaf, stem and inflorescence tissue than diploid plants. Plants grown at the 50% water treatment had higher CP and in vitro dry matter digestibility (IVDMD), and low...
Databáze:	OpenAIRE
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