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Development and Performance of Seedless Hops for New Zealand Growing Conditions

MBAA TQ vol. 40, no. 1, 2003, pp. 7-10  |  VIEW ARTICLE

Ron A. Beatson, Kevin A. Ansell, and Lawrence T. Graham. HortResearch, Nelson Region, P.O. Box 220, Motueka, New Zealand.

Abstract
During the last 4 decades, the New Zealand hop breeding program has developed and released several seedless cultivars that have triploid sets of chromosomes. High-alpha- and aroma-type cultivars have been developed and are used by both domestic and international brewers. Currently, 99% of the commercial plantings are New Zealand-bred triploid cultivars. Cultivars with unique chemistry and brewing characteristics have been released. Alternative triploid breeding strategies have been developed. The performance of commercially grown cultivars and several advanced selections is presented.
Keywords: alpha acids, cultivar, essential oils, genetics, hops, Humulus lupulus, plant breeding

 

S�ntesis
Durante las �ltimas cuatro d�cadas, el programa Nueva Zeland�s para el cultivo de l�pulo ha desarrollado y distribuido varios cultivos sin semillas conteniendo conjuntos tripl�ides de cromosomas. Se han desarrollado cultivos tanto del tipo arom�tico como de alto alfa que son aprovechados tanto por cervecer�as internacionales como nacionales. 99% de la siembra comercial de l�pulo en Nueva Zelanda son cultivos triploides desarrollados en el pa�s. Se han distribuido cultivos con caracter�sticas qu�micas y cerveceras muy particulares. Se han desarrollado estrategias alternas de reproducci�n de tripl�ides. Se informa sobre el desempe�o de cultivos sembrados comercialmente, as� como de selecciones avanzadas de cultivo.
Palabras claves: �cidos alfa, cultivos, aceites esenciales, gen�tica, l�pulos, Humulus lupulus, reproducci�n de plantas

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