نتایج جستجو برای: forage grasses

تعداد نتایج: 18173  

2006
Y. Zhang

Improvement in stress tolerance of forage and turf grasses is a major breeding goal. Most forage and some turf grasses are grown on marginal lands under stressful environments with minimal inputs. In contrast, current high-input turf grass production systems such as golf courses and lawns are expensive and often environmentally unfriendly. Cultivars with improved stress tolerance are necessary ...

Journal: :international journal of environmental research 2012
m.b. ogundiran d.t. ogundele p.g. afolayan o. osibanjo

a field study was conducted around pb slag contaminated sites in ibadan, nigeria to assess theintake of trace metals by cows reared around the contaminated sites as indication of heavy metals contamination.levels of pb, cd, cu and zn in blood, milk and faeces were determined in 20 cows exposed to the sites and 20reference cows from uncontaminated areas. chemical analysis of pasture grasses and ...

2014
K. J. Han W. D. Pitman A. Chapple

Preservation of forage crops as silage offers opportunity to avoid the high risk of rain-damaged hay in the humid south-central USA. Recent developments with baled silage or baleage make silage a less expensive option than typical chopped silage. Silage has been important in the region primarily for dairy production, but baleage has become an option for the more extensive beef cattle industry i...

2001
Rex L. Smith

The forage quality of warm season perennial grasses grown in the Southern States, subtropics, and the tropics is often inadequate and is a major limitation to satisfactory animal performance. Quality improvement of those warm season grasses has been a high priority research objective in breeding programs. Hammond (1987) pointed out that C4 tropical and subtropical grasses generally have lower q...

2010
João Vendramini

Warm-season grasses, also called C4, are the predominant forages for ruminant production in Florida. The C4 grasses grow well under high temperatures and generally cultivated between 25 N and 25 S of the equator. The C4 grasses are more efficient in fixing carbon dioxide than other grasses; however, they have a specialized thick-walled parenchyma bundle sheath around each vascular bundle, and m...

2004

Land, livestock, and wildlife managers need to understand the nutritional dynamics of forages to sustain adequate growth and reproduction of their animals and/or assure equitable payment for forages. Despite a long history of livestock grazing in the northern Great Basin, seasonal and annual nutritional dynamics of many of the region’s prominent grasses have not been described. We addressed thi...

ژورنال: علوم زراعی ایران 2022

Drought stress is one of the most limiting abiotic stresses affecting growth, production and survival of plants in many areas of the world, and is expected to intensify considering the trend of climate change. Grass species are important for the sustainability of agricultural systems, forage resources for animal farming and landscapes. Grass species adapt to water deficit by different morpholog...

Journal: :علوم گیاهان زراعی ایران 0
محمد جعفر بحرانی سید عبدالرضا کاظمینی

forage species in mixtures are extensively grown worldwide nowadays, particularly as a step towards sustainable agriculture, however, information on this topic is scanty in our country. thus a 2-year (2001-2003) field experiment was conducted to determine the forage yield, botanical composition, as well as competition of some forage grasses and legumes as mono and dual cultures combinations at ...

2014
S. S. Nascimento E. B. Silva L. R. F. Alleoni P. H. Grazziotti F. G. Fonseca B. O. Nardis

The forage grasses are explored for the phytoremediation of heavy metals from contaminated areas. The present study evaluates the tolerance of forages grasses to Pb and the availability of Pb for the Mehlich 1, DTPA, and USEPA 3051 and 3052 extraction methods. The forage grasses cultivars Panicum maximum cultivars Aruana and Tanzânia, Brachiaria decumbens cultivar Basilisk, Brachiaria brizantha...

Journal: :Journal of animal science 1995
P R Cheeke

Plant toxins are the chemical defenses of plants against herbivory. Grasses have relatively few intrinsic toxins, relying more on growth habit to survive defoliation and endophytic fungal toxins as chemical defenses. Forage grasses that contain intrinsic toxins include Phalaris spp. (tryptamine and carboline alkaloids), sorghums (cyanogenic glycosides), and tropical grasses containing oxalates ...

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