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Vegetable Seed Catalogue Coastal California 2019

  • Text
  • Enza
  • Variety
  • Zaden
  • Harvest
  • Lettuce
  • Varieties
  • Planting
  • Resistance
  • Romaine
  • Medium

Resistances Resistances

Resistances Resistances in varieties of our crops will be coded (please, see our coding list on www.enzazaden.com for explanation), unless indicated otherwise. Varieties claiming the same level of resistance against a specific pest or pathogen may exhibit a different resistance response due to a different genetic makeup of a variety.It is to be noted that if a resistance is claimed in a plant variety it is limited to the specified biotypes, pathotypes, races or strains of the pest or pathogen. If no biotypes, pathotypes, races or strains are specified in the resistance claim for the variety, it is because no generally accepted classification of the cited pest by biotype, pathotype, race or strain exists. In this case resistance is only claimed against certain not further specified isolates of that pathogen. New biotypes, pathotypes, races or strains that may emerge are not covered by the original resistance claim. Immunity: not subject to attack or infection by a specified pest or pathogen. Resistance: the ability of a plant variety to restrict the growth and development of a specified pest or pathogen and/or the damage they cause when compared to susceptible plant varieties under similar environmental conditions and pest or pathogen pressure. Resistant varieties may exhibit some disease symptoms or damage under heavy pest or pathogen pressure. Two levels of resistance are defined: • High resistance (HR): plant varieties that highly restrict the growth and development of the specified pest or pathogen under normal pest or pathogen pressure when compared to susceptible varieties. These plant varieties may, however, exhibit some symptoms or damage under heavy pest or pathogen pressure. • Intermediate resistance (IR): plant varieties that restrict the growth and development of the specified pest or pathogen, but may exhibit a greater range of symptoms or damage compared to highly resistant varieties. Intermediate resistant plant varieties will still show less severe symptoms or damage than susceptible plant varieties when grown under similar environmental conditions and/ or pest or pathogen pressure. Lettuce Viruses Bacteria Fungi Insects Aragula Scientific name pathogen ISF English name Races/Strains Code Lettuce mosaic virus Lettuce mosaic 1 LMV Tomato bushy stunt virus Lettuce die-back TBSV Sphingomonas suberifaciens (ex Rhizomonas suberifaciens) Corky root Bremia lactucae Downy Mildew 16-35EU/1-9US Bl Fusarium oxysporum f.sp. lactucae Fusarium wilt 1,2 Fol Macrosiphum euphorbiae Potato aphid Me Nasonovia ribisnigri Lettuce leaf aphid 0 Nr Pemphigus bursarius Lettuce root aphid Pb Ss Fungi Hyal operonospora parasitica Downy Mildew Hp Basil Fungi Fusarium oxysporum f. sp. basilicum Fusarium Wilt Fob Peronospora belbahrii Downy Mildew Pb Parsley Fungi Septoria petroselini Septoria blight Sp Disclaimer Descriptions, recommendations and illustrations in brochures and leaflets shall correspond as closely as possible to tests and practical experience and are subject to typographical and/or printing errors. This information shall be provided to assist professional growers and users, whereby variable local conditions must be taken into account. Under no circumstances shall Enza Zaden accept liability based on such information for deviating results in the cultivated product. Current information concerning the resistances is available on www.enzazaden.us. 30 | Enza Zaden Enza Zaden | 31

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Огурец
Пряно-вкусовые культуры 2019 | 2020
Лук
Перец 2019
Тыква 2019
Салаты Eazyleaf
Дыня 2018
Қауын 2018
Редис | Дайкон 2017 | 2018
Тыква 2017 | 2018
Корнишон 2017 | 2018