Walnut Blight Sustainable Management Research in New Zealand

Jenkins, Tim; marsh, charlotte; Lang, M.; Vanestre, J.; Walter, Monika; Obanor, Friday

doi:10.17660/actahortic.2010.861.68

Cited by 3 publications

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“…Unfortunately, old cultivars are missing from the contemporary breeding programs of many countries. However there are also some exceptions such as China [ 9 , 10 ], Hungary [ 2 ], Iran [ 11 ], Kazakhstan [ 12 ], New Zealand [ 13 ], Romania [ 14 , 15 ], Serbia [ 16 ], Slovenia [ 17 ] and the United States of America [ 18 ]. Apart from the previously mentioned old walnut genotypes, Esterhazy II (syn: Eszterházy II, Eszterházi 2, Estherházai II, E II) still has importance.…”

Section: Introductionmentioning

confidence: 99%

Is “Esterhazy II”, an Old Walnut Variety in the Hungarian Gene Bank, the Original Genotype?

Bujdosó

Illés

Varjas

et al. 2021

Plants

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The old walnut (Juglans regia L.) genotype called “Esterhazy II” was well-known in the Austro-Hungarian Monarchy before World War II, and it can still be found in the Austrian, German and Swiss backyard gardens today. Unfortunately, nowadays, vegetatively propagated progenies of the original “Esterhazy II” are not available anymore around the world because walnut grafting started later than this genotype had become well-known. Although various accessions with “Esterhazy II”-“blood“ are available, it is difficult to determine which one can be considered true or the most similar to the original one. In this paper, phenological and nut morphological characteristics of an “Esterhazy II” specimen planted in a Hungarian gene bank were compared to the varieties “Milotai 10” and “Chandler”. Examined characteristics were: budbreak, blossom time, type of dichogamy, ripening time, nut and kernel features. An additional SSR fingerprinting was used to identify identical genotypes and to demonstrate the relatedness of the analyzed “Esterhazy II” genotype to the other Hungarian walnut cultivars. It can be concluded that under the name “Esterhazy II”, several different genotypes can be observed. All the checked characteristics except budbreak fitted well with the previous descriptions. Our results confirmed that the examined “Esterhazy II” genotype shows high similarity to the “original“ “Esterhazy II” described in the literature.

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Section: Introductionmentioning

confidence: 99%

Is “Esterhazy II”, an Old Walnut Variety in the Hungarian Gene Bank, the Original Genotype?

Bujdosó

Illés

Varjas

et al. 2021

Plants

View full text Add to dashboard Cite

show abstract

Walnut blight investigation, spray materials screening, and bactericide application timing for walnut blight control in Northeast China

Zhao¹,

Liu²,

Gong³

et al. 2021

Eur J Plant Pathol

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Walnut Genotypes for High Density Orchards

Devin

Bujdosó

2022

Horticulturae

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The aim of this review is to check the possibilities and circumstances regarding how to create a high-density Persian walnut orchard. Increasing yields, decreasing tree size, limiting juveniles, and lowering total costs are the most important objectives of breeders and horticulturists. Reducing the size of walnut trees can increase yield. Breeding programs in several countries have led to the production of walnut dwarf rootstocks. For example, Daixiang and Daihui in China, Alvand in Iran, and Fernette in France are all novel-bred dwarfing Persian walnut rootstocks. These precocious walnuts are considered to be a rare resource in the study of precociousness as well as juvenile and flowering mechanisms. Moreover, they play a potential role in breeding and modifying cultivars by genetic engineering, through walnut ameliorating programs. The CRISPR (clustered regularly interspaced short palindromic repeat) technique is used to improve walnuts, which will be used in the near future.

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Walnut Blight Sustainable Management Research in New Zealand

Cited by 3 publications

References 0 publications

Is “Esterhazy II”, an Old Walnut Variety in the Hungarian Gene Bank, the Original Genotype?

Is “Esterhazy II”, an Old Walnut Variety in the Hungarian Gene Bank, the Original Genotype?

Walnut blight investigation, spray materials screening, and bactericide application timing for walnut blight control in Northeast China

Walnut Genotypes for High Density Orchards

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