Bibliografie tematiche / Orchardgrass

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Letteratura scientifica selezionata sul tema "Orchardgrass"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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Articoli di riviste sul tema "Orchardgrass"

Zeng, Bing, Xin-Quan Zhang, Ying Lan, and Wu-Yun Yang. "Evaluation of genetic diversity and relationshipsin orchardgrass (Dactylis glomerata L.) germplasm based on SRAP markers." Canadian Journal of Plant Science 88, no. 1 (2008): 53–60. http://dx.doi.org/10.4141/cjps07017.

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The present study is the first report of characterizing the levels and patterns ofgenetic diversity in 60 orchardgrass accessions from four continents by sequence-related amplified polymorphism (SRAP) markers. Twenty-one primer pairs were used to produce 480 bands, of which 405 (84.38%) were polymorphic. The genetic similarity coeffic ients (GS) varied from 0.5863 to 0.9686 among the 60 collections, with an average of 0.7891. The genetic diversity of orchardgrass from China and the United States of America were found to be higher than that found in other countries. The dendrogram and principal

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Spandl, Eric, James J. Kells, and Oran B. Hesterman. "Weed Invasion in Established Alfalfa (Medicago sativa) Seeded with Perennial Forage Grasses." Weed Technology 11, no. 3 (1997): 556–60. http://dx.doi.org/10.1017/s0890037x00045413.

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Component yields and forage quality were evaluated in established stands of alfalfa seeded alone and in binary mixtures with smooth bromegrass, orchardgrass, or timothy. Forage yields and quality were determined at three annual harvests in the third and fourth years after seeding. Weed yields in alfalfa seeded alone were significantly greater than those in the alfalfa–orchardgrass mixture. Average weed content was 24, 17, 2, and 15% for the alfalfa seeded alone, alfalfa–bromegrass, alfalfa–orchardgrass, and alfalfa–timothy, respectively. Seeding alfalfa with orchardgrass increased first harves

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Bowley, S. R., D. Hancock, and D. Wood. "Jay orchardgrass." Canadian Journal of Plant Science 74, no. 2 (1994): 339–40. http://dx.doi.org/10.4141/cjps94-065.

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Jay is a cultivar of orchardgrass (Dactylis glomerata L.) developed by the Crop Science Department, University of Guelph. It was developed by half-sib progeny testing for yield, leafiness, and late-maturity. It is similar in herbage yield and plant height but slightly later maturing than the cultivar Kay. Jay is suited for situations where a late-maturing orchardgrass is desired. Key words: Orchardgrass, Dactylis glomerata, cultivar description

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Christie, B. R., and S. R. Bowley. "Jay Orchardgrass." Canadian Journal of Plant Science 80, no. 4 (2000): 839–40. http://dx.doi.org/10.4141/p99-148.

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Jay is a cultivar of orchardgrass (Dactylis glomerata L.) developed by the Department of Plant Agriculture, University of Guelph. The nine parents of Jay were selected for general vigour, late maturity, plant height at heading, and aftermath vigour. It is similar in herbage yield and plant height but slightly later maturing than the cultivar Kay. Jay is suited for situations where a late-maturing orchardgrass is desired. Key words: Orchardgrass, Dactylis glomerata, cultivar description

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Acharya, S. N., D. R. Friebel, and Y. Castonguay. "Kayak orchardgrass." Canadian Journal of Plant Science 87, no. 4 (2007): 905–6. http://dx.doi.org/10.4141/cjps07016.

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Kayak is a high yielding early maturing orchardgrass (Dactylis glomerata L.) cultivar with good level of winterhardiness suited for silage and hay production in western Canada including interior British Columbia. The population was developed at the Agriculture and Agri-Food Canada (AAFC) Research Centre, Lethbridge, AB. In BC and Western Forage Trials (WFTests), Kayak yielded 4% better than the check cultivar Kay under both rain fed and irrigated conditions. Kayak orchardgrass produces 10% more seed yield than Kay while its seed size is slightly smaller than Kay. Key words: Orchardgrass, Dacty

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Linscott, Dean L., and Richard H. Vaughan. "Fenoxaprop for Annual Foxtail (Setariasp.) Control in Seedling Perennial Forages." Weed Technology 4, no. 3 (1990): 560–64. http://dx.doi.org/10.1017/s0890037x00025975.

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Seedling timothy tolerated fenoxaprop at 0.09 kg ai ha-1whereas seedling orchardgrass tolerated applications as high as 0.13 kg ai ha-1. Several fenoxaprop treatments increased perennial grass yields the year following establishment. Fenoxaprop appears to solve annual foxtail problems in new plantings of orchardgrass or timothy seeded alone. Over a 2-yr period, alfalfa yields in on alfalfa-grass mixture were maintained or increased from fenoxaprop applied the seedling year. In the mixtures, timothy yield declined in relation to fenoxaprop applied, but orchardgrass did not. Use of fenoxaprop on

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Thompson, Donald. "Yield and nutritive value of irrigated tall fescue compared with orchardgrass: In monocultures or mixed with alfalfa." Canadian Journal of Plant Science 93, no. 5 (2013): 799–807. http://dx.doi.org/10.4141/cjps2012-283.

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Thompson, D. J. 2013. Yield and nutritive value of irrigated tall fescue compared with orchardgrass: in monocultures or mixed with alfalfa. Can. J. Plant Sci. 93: 799–807. Orchardgrass (Dactylis glomerata L.) is commonly grown for irrigated forage production in interior British Columbia. Tall fescue [Schedonorus phoenix (Schop.) Holub.] is also adapted to the area but no comparative trials have been reported. Three varieties of each grass species were grown in monocultures or in mixtures with alfalfa at three irrigated sites throughout southern interior British Columbia. Study objectives inclu

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Chung, Kuang-Ren, Walter Hollin, Malcolm R. Siegel, and Christopher L. Schardl. "Genetics of Host Specificity in Epichloë typhina." Phytopathology® 87, no. 6 (1997): 599–605. http://dx.doi.org/10.1094/phyto.1997.87.6.599.

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Epichloë typhina perennially and systemically infects grass plants, causing choke disease in which maturation of host inflorescences is suppressed. In seedling-inoculation tests, isolate E8 from perennial ryegrass established and maintained infection in this host but not in orchardgrass. In contrast, isolates E469, E2466, and E2467 from orchardgrass varied in infection frequency and stability in orchardgrass, but all were unable to establish stable infections in perennial ryegrass. To investigate the genetics of host specificity, isolate E8 was crossed with each of the isolates from orchardgra

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Tahir, Muhammad, Changhua Li, Tairu Zeng, et al. "Mixture Composition Influenced the Biomass Yield and Nutritional Quality of Legume–Grass Pastures." Agronomy 12, no. 6 (2022): 1449. http://dx.doi.org/10.3390/agronomy12061449.

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A two-year field experiment was conducted to address the effects of mixture composition and legume-grass seeding ratio on the biomass yield and nutritional quality of legume–grass mixtures. Alfalfa (Medicago sativa L.), white clover (Trifolium repens L.), red clover (Trifolium pratense L.), orchardgrass (Dactylis glomerata L.), perennial ryegrass (Lolium perenne L.), and tall fescue (Festuca arundinacea Schreb.) were selected as plant materials. A total of seven legume–grass mixtures (A1: white clover, orchardgrass, and tall fescue; A2: alfalfa, orchardgrass, and tall fescue; B1: alfalfa, whit

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Xu, Xiaoheng, Guangyan Feng, Zhongfu Yang, et al. "Transcriptome Analysis Reveals the Potential Molecular Mechanisms of Tiller Bud Development in Orchardgrass." International Journal of Molecular Sciences 24, no. 21 (2023): 15762. http://dx.doi.org/10.3390/ijms242115762.

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Tillering is a special type of branching and one of the important contributors to the yield of cereal crops. Strigolactone and sucrose play a vital role in controlling tiller formation, but their mechanism has not been elucidated completely in most crops. Orchardgrass (Dactylis glomerata L.) is an important perennial forage with prominent tillering ability among crops. To date, the mechanism of tillering in orchardgrass is still largely unknown. Therefore, we performed a transcriptome and miRNA analysis to reveal the potential RNA mechanism of tiller formation under strigolactone and sucrose t

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Tesi sul tema "Orchardgrass"

Kuhn, William Robert. "Pest management of billbugs in orchardgrass grown in Virginia." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/76916.

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The bluegrass billbug (Sphenophorus parvulus Gyllenhal) and hunting billbug (Sphenophorus venatus vestitus Chittenden) have become important pests of orchardgrass (Dactylis glomerata L.) grown in Virginia, causing 40 - 100% stand losses according to a 2005 survey of over 324 ha (800 ac) of orchardgrass. Their sheltered feeding habits combined with a lack of labeled insecticides for orchardgrass make billbug control extremely difficult for this crop. Over two seasons, orchardgrass fields were surveyed for paired feeding holes caused by feeding of the billbug spring adult. Simultaneously, barr

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Jones, Gordon B. "Persistence and Productivity of Orchardgrass (Dactylis glomerata L.) in Hay Stands." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/74878.

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Persistence of perennial grass crops is essential to their profitable management. Recently, orchardgrass producers in the Mid-Atlantic have reported a reduction in the persistence and regrowth vigor of their swards. The overall objective was to evaluate which factors play a major role in controlling the persistence of orchardgrass harvested for hay in the Mid-Atlantic. A survey of orchardgrass fields, growth chamber experiment, and field experiment were conducted to that end. The objectives were to: (1) assess soil fertility, management practices, disease status, and climate in relation to pro

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Moffitt, Deborah L. "Seasonal differences in apparent digestibilities of fescue and orchardgrass/clover pastures by horses." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/52057.

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An experiment was conducted to determine intake and apparent digestibilities of Kentucky 31 tall fescue (Festuca arundinacea schreb.) and orchardgrass/clover (Dactylus glomerata L./Trifolium pratense L.) pastures in different seasons of the year. Three digestion trials were conducted in December, 1985 (winter), May, 1986 (spring) and August, 1986 (summer). Five horses grazed each pasture type. A double marker procedure was used with indigestible neutral detergent fiber (INDF) and Yb as internal and external markers, respectively. Apparent digestibility of dry matter (DM),

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Mundie, Benjamin Scott. "Nutritional Value of Warm- and Cool-Season Grasses for Ruminants." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/42804.

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A metabolism trial was conducted to compare the nutritional value of: 1)â Quickstandâ bermudagrass [Cynodon dactylon (L.) Pers.], 2)caucasian bluestem [Bothriochloa caucasia (Trin.) C.E. Hubb], 3)tall fescue (Festuca arundinacea Schreb.), and 4)orchardgrass (Dactylis glomerata L.). The warm-season grasses (bermudagrass and bluestem) were higher (P < .01) in fiber components than the cool-season grasses (tall fescue and orchardgrass). Bluestem was lower (P < .001) in CP, hemicellulose, and ash, and higher in NDF (P < .001), ADF (P < .001), cellulose (P < .001), and lignin (P < .01) than b

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Potdar, Madhukar Vishwanathrao. "Interference in monocultures and mixtures of orchardgrass (Dactylis glomerata L.) and timothy (Phleum pratense L.)." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/27510.

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Interference among plants involves responses of plants to their environment as modified by the presence and/or growth of neighbouring plants. An important theme of research on plant interference is the relationship between plant population density and measures of plant growth or agricultural yield. An experiment on plant interference was performed in which plots of two important forage species, orchardgrass (Dactylis glomerata L.) and timothy (Phleum pratense L.), were grown at different total population densities and mixture proportions. Measures of plant growth and yield were taken at five s

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Shateryan, Djavad. "Evaluation of three cycles of recurrent phenotypic selection for forage yield in orchardgrass and timothy." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=26140.

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Three cycles of recurrent restricted phenotypic selection (RRPS) were carried out on two cultivars each of timothy (Phleum pratense L.) and orchardgrass (Dactylis glomerata L.). The selections were conducted at the E. A. Lods Agronomy Research Center of Macdonald Campus of McGill University from 1984 to 1988. Individual plant selections were based on dry matter yields of 25 plants. Within each of 16 grids, the five highest yielding genotypes were selected (i.e. 80 genotypes overall) and allowed to interpollinate. Equal weights of seeds from each of the 80 selected plants were mixed in each cyc

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Wood, Lauren N. "POST WEANING SUPPLEMENTATION OF APRIL-BORN POLYPAY AND WHITE DORPER LAMBS GRAZING ALFALFA/ORCHARDGRASS PASTURE." UKnowledge, 2016. http://uknowledge.uky.edu/animalsci_etds/60.

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The effect of post-weaning supplementation of April-born Polypay and White Dorper lambs grazing alfalfa/orchardgrass pasture during two grazing seasons from June to September was studied. One hundred seventy Polypay and 133 White Dorper lambs were randomly allotted to supplemented (2% BW daily) and unsupplemented groups. It was discovered that Polypay lambs weighed more than White Dorpers at wearning, when the grazing season began, and at the end of the 80 (Year 1) and 85 (Year 2) grazing season (P < 0.01). Polypay lambs gained faster (P < 0.01) than White Dorpers. Supplemented lambs gained fa

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Magee, Kelly Jean. "Nitrogen Metabolism of Beef Steers Fed Either Gamagrass or Orchardgrass Hay With or Without A Supplement." NCSU, 2004. http://www.lib.ncsu.edu/theses/available/etd-04092004-175002/.

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This experiment evaluated rumen protein:energy synchronization in steers fed either gamagrass (Tripsacum dactyloides) or orchardgrass (Dactylis glomerata) hays with or without a soybean hull/corn supplement. A N balance trial was conducted to compare the effects of the supplement and hay on N intake, N digestion, and N metabolism. The supplement consisted of 50:50 corn: soybean hulls mix with 50 g molasses per kg of corn: soybean hulls mixture. The supplement contained 11.3% CP, 34.2% NDF, 22.9% ADF, and 0.87 kg was fed at 0830 and 1600 followed by hay offered in two equal portions. Steers had

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Riley, AnnMarie Christine. "FORAGE QUALITY OF COOL SEASON PERENNIAL GRASS HORSE PASTURES IN THE TRANSITION ZONE." UKnowledge, 2019. https://uknowledge.uky.edu/pss_etds/112.

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Cool season perennial grasses are the foundation of equine nutrition in the transition zone. The objective of this study was to evaluate forage quality using ADF, NDF, IVTDMD, CP, WSC, and ESC and changes in vegetative swards seasonally, diurnally, across species (Kentucky bluegrass, tall fescue, orchardgrass, and perennial ryegrass) and cultivar. This study was conducted in 2015 and 2017 and plots were maintained vegetatively with two to four week mowing. Morning and afternoon sample collection occurred monthly during the growing season. Samples were flash frozen; freeze dried, ground, and sc

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Canty, Amanda. "Comparison of Nutrient Concentration in Four Fertility Treatments After Poultry Litter Application to Orchardgrass and Sorghum-Sundangrass Hayfield Soils." TopSCHOLAR®, 2002. http://digitalcommons.wku.edu/theses/623.

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Field experiments were established in 2001 at the Agricultural Research and Education Complex in Bowling Green, Kentucky to evaluate soil fertility values before and after poultry litter application to orchardgrass and sorghum-sudangrass hayfields. A randomized complete block design was utilized with each treatment being replicated four times. Orchardgrass plots consisted of sixteen 7.6 m rows, 91 m in length and separated by alleys 4.6 m in width. Sorghum-sudangrass plots consisted of sixteen 7.6 m rows, 60.96 m in length and separated by alleys 4.6 m in width. Four separate fertility treatme

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Più fonti

Libri sul tema "Orchardgrass"

B, Hannaway D., Oregon State University. Extension Service., Washington State University. Cooperative Extension., University of Idaho. Cooperative Extension System., and United States. Dept. of Agriculture., eds. Orchardgrass (Dactylis glomerata L.). Oregon State University Extension Service, 1999.

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Kugler, John Lee. Orchardgrass hay production guide for the Columbia Basin of Washington. Washington State University Extension, 2006.

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Chastain, Thomas G. Spring establishment of orchardgrass and tall fescue seed crops with cereal companion crops. 1987.

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Fitzsimmons, James P. Pasture renovation with herbicide suppression of weeds and no-till seeding of orchardgrass. 1993.

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Fernandez, Jesus Perez. Rhynchosporium orthosporum in orchardgrass, isolation frequency, colonization, variability, and an evaluation of cultivar resistance. 1990.

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Capitoli di libri sul tema "Orchardgrass"

Van Santen, Edzard, and David A. Sleper. "Orchardgrass." In Cool-Season Forage Grasses. American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr34.c16.

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Horn, Michael E. "Somatic embryogenesis in orchardgrass." In Plant Tissue Culture Manual. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-009-0103-2_5.

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Songstad, D. D., and B. V. Conger. "Morphogenetic Response from Orchardgrass Pistils." In Tissue Culture in Forestry and Agriculture. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4899-0378-5_57.

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Denchev, P. D., J. K. McDaniel, and B. V. Conger. "Transgenic Orchardgrass (Dactylis glomerata L.)." In Transgenic Crops I. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-59612-4_10.

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Horn, Michael E. "Transformation and regeneration of orchardgrass protoplasts." In Plant Tissue Culture Manual. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-009-0103-2_14.

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Conger, B. V., R. N. Trigiano, D. J. Gray, and J. K. McDaniel. "Somatic Embryogenesis in Orchardgrass (Dactylis glomerata L.)." In Somatic Embryogenesis and Synthetic Seed II. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-78643-3_7.

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Gray, D. J., and B. V. Conger. "Somatic Embryo Ontogeny in Tissue Cultures of Orchardgrass." In Tissue Culture in Forestry and Agriculture. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4899-0378-5_4.

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Sokolović, D., S. Babić, J. Radović, et al. "Evaluation of Orchardgrass (Dactylis glomerata L.) Autochthonous Serbian Germplasm in Pre-breeding." In Breeding in a World of Scarcity. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28932-8_13.

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Matsunaka, T., and H. Takahasi. "Root weight as a principal factor responsible for difference in nitrogen absorption among Orchardgrass (Dactylis glomerata L.), Meadow Fescue (Festuca elatior L.) and Timothy (Phleum pratense L.) during first growing period." In Plant Nutrition. Springer Netherlands, 2001. http://dx.doi.org/10.1007/0-306-47624-x_287.

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Wolf, D. D., and Η. E. White. "Orchardgrass." In Detecting Mineral Nutrient Deficiencies in Tropical and Temperate Crops. CRC Press, 2019. http://dx.doi.org/10.1201/9780429035258-43.

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Atti di convegni sul tema "Orchardgrass"

Johnson, K., R. Oakes, and G. Bates. "Tall Fescue and Orchardgrass Productivity and Persistence Under Grazing Systems in Tennessee." In XXV International Grassland Congress. International Grassland Congress 2023, 2023. http://dx.doi.org/10.52202/071171-0289.

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Ritchey, E. L., and C. D. Teutsch. "Impact of Fertilizer Type, Seed Coating, andDuration of Exposure on the Germination of Orchardgrass Seed." In XXV International Grassland Congress. International Grassland Congress 2023, 2023. http://dx.doi.org/10.52202/071171-0201.

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Billman, E., K. Soder, J. Horst, K. Balk, and A. Hafla. "Brix as an Indicator of Sugar Content and Nutritive Value in Alfalfa and Orchardgrass Herbage." In XXV International Grassland Congress. International Grassland Congress 2023, 2023. http://dx.doi.org/10.52202/071171-0336.

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