Abstrakt
Asparagus (Asparagus officinalis L.) may be cultivated either for white or for green spears, the latter method started to prevail in the world in the last years. The aim of the study was a comparison of yielding of white and green asparagus cv. ‘Ravel’ in the open field and in the PE tunnel. The weight, number and diameter of spears in the total, marketable and non-marketable yields in the first and second harvest year were assessed. Total and marketable yield of white asparagus was higher than that of green one, but the latter formed significantly more spears in the total and nonmarketable yield. The yield and number of spears obtained in the tunnel was significantly higher than with no cover. Marketable spears constituted on average 77.8% of yield weight and 63.0% of the total number of spears and the values for both cultivation methods were similar. Mean weight and diameter of white spears were higher than those of the green ones.
Bibliografia
Adam D., 2000. Asperge blanche sous tunnel. P.H.M. Rev. Hort., 420, 44–47.
Anon., 2008. UK Asparagus Grower Extends His Season. http://vegetablegrowersnews.com/index.php/magazine/article/UK-Asparagus-Grower-Extends-His-Season
Anon., 2011. Hargreavesplants. Asparagus. Aspara Pacific. http://www.Hargreavesplants.com/asparaPacific.asp
Benson B.L., 2008. 2005 update of the world’s asparagus production areas, spear utilization and production periods. Acta Hort., 776, 496–507.
Benson B.L., 2012. 2009 update of the world’s asparagus production areas, spear utilization and production periods. Acta Hort., 950, 87–100.
Caruso G., Villari G., Borrelli C., Russo G., 2012. Effects of crop method and harvest seasons on yield and quality of green asparagus under tunnel in southern Italy. Adv. Horticult. Sci., 26, 2, 51–58.
Cermeño P., 2005. Trial at Seville, Southern Spain. http://aesop.rutgers.edu/~iact/asparagus/seville.html
Cermeño P., Calado S., Rubio V., Ortega F.R., 2008. Extending the a production harvest period in southern Spain. Acta Hort., 776, 55–62
Cermeño P., Ortega F.R., Calado S., Rubio V., 2008. Performance of green and white asparagus cultivars in southern Spain. Acta Hort., 776, 339–343.
Chinn J., 2012. Use of plastic in green Asparagus production. Asparag. Times, 1(2), 1. http://www.hargreavesplants.com/media/Asparagus%20Times%20May%202012.pdf
Duranti A., Caruso G., Conte C., 2001. La forzatura estiva dell’asparago in ambiente mediterraneo. Colt. Prot., 30, 6, 79–86.
Fanasca S., Rouphael Y., Venneria E., Azzini E., Durazzo A., Maiani G., 2009. Antioxidant properties of raw and cooked spears of green asparagus cultivars. Int. J. Food Sci. Tech., 44, 5, 1017–1023,
Jinsong Y., 2002. Primary report of the Second International Asparagus Varieties Estimate Trials. Acta Hort., 589, 173–178.
Jishi T., Tanaka S., 2009. White asparagus [Asparagus officinalis] production by covering with a shading film in semi-forcing spring harvest cultivation. Horticult. Res., 8(1), 67–72.
Kałużewicz A., Krzesiński W., Buchowski S., Zaworska A., Kotlińska T., Knaflewski M., 2010. Variability of Economic Traits of 28 Cultivars of Asparagus (Asparagus officinalis L.). VCRB 73, 161–168.
Kmitiene L., Zebrauskiene A., Kmitas A., 2009. Comparison of biological characteristics and productivity of introduced cultivars of asparagus (Asparagus officinalis L.). Agron. Res., 7(1), 11–20.
Knaflewski M., 1990. Comparison of the suitability of asparagus cultivars for blanched and green spear production. Acta Hort., 271, 191–196.
Knaflewski M., 1994. Wyniki badań nad przydatnością odmian szparaga do uprawy w Polsce. Hod. Rośl. Nasien., 4–5, 45–48.
Knaflewski M., 2005. Uprawa szparaga. Hortpress, Warszawa.
Knaflewski M., Kałużewicz A., Gebler K., 2001. Changes in field quality of 12 asparagus cultivars during 10 years of harvest. VCRB, 54, 11–14.
Knaflewski M., Kałużewicz A., Gebler K., Zaworska A., 2000. Plonowanie kilku odmian szparaga w latach 1990–1999. Annales UMCS, sec. EEE, Horticultura, 7, Suppl., 411–416.
Knaflewski M., Kałużewicz A., Kamińska B., Spiżewski T., 1998. Plonowanie i jakość piętnastu odmian szparaga (Asparagus officinalis L.). Zesz. Nauk. AR Kraków, 333, 153–157.
Knaflewski M., Kałużewicz A., Krzesiński W., Zaworska A., 2008. Przydatność 21 odmian szparaga do uprawy na zielone wypustki w Polsce. Zesz. Probl. Post. Nauk Rol., 527, 173–177.
Knaflewski M., Krzesiński W., 2002. Results of investigations on timing asparagus production in a temperate climate. Acta Hort., 589, 73–79.
Knaflewski M., Kucharski P., Krzesinski W., 1999. Timing of a production in a temperate climate. Acta Hortic., 479, 391–397.
Krarup C., Contreras S., 2002. Behavior of Asparagus cultivars in a semi-arid environment: Curacavi, Chile. Asparag. Res. Newslet., 18, 9–18.
Makus D.J., 1995. Response in green and white asparagus to supplemental nitrogen and harvest date. HortSci., 30(1), 55–58.
Makus D.J., Gonzales A.R., 1991. Production and quality of white asp grown under opaque rowcovers. HortSci., 26(4), 374–377.
Mulder J.H., 2005. Trial at Horst. Netherlands. http://aesop.rutgers.edu/ ~iact/ asparagus/ asparagusbv.html
Mulder J.H., Lavrijssen P., 2008. First results of the „Third International Asparagus Cultivar Trial” planted in Horst, the Netherlands. Acta Hort., 776, 367–372.
Nichols M.A., Fisher K.J., 1999. Improving the efficiency of cultivar evaluation of green asparagus. Acta Hort., 479, 157–161.
Paschold P.J., Artelt B., Hermann G., 2008. Comparison of white cultivars (Asparagus officinalis) in Germany. Acta Hort., 776, 379–386.
Poll J.T.K., 1990. Effects of low plastic tunnels on earliness, production and quality of green asparagus in the Netherlands. Asparag. Res. Newslet., 7, 2, 1–4.
Ragab M.E., 2003. Early production of a spears under low plastic tunnels. Arab. Univ. J. Agricult. Sci., 11, 2, 789–802.
Rolbiecki R., 2008. Trial at Bydgoszcz, Poland. http://aesop.rutgers.edu/ ~iact/asparagus/ poland05.html
Vakis N.J., Gregoriou C., Ioannou A., 1975. Trials on asparagus blanching and earliness. Tech. Pap. Cyprus Agricult. Res. Inst., 12, 14.
Ziegler J., 2005. Spargel im Tunnel. Gemüse, 9, 33–34.
Downloads
Download data is not yet available.
