Yield and nut characteristics of hazelnut genotypes grown in San Joaquin Valley, California

Abstract

Worldwide, hazelnut (Corylus spp.) (Family Betulaceae) is one of the most economically important nut crops cultivated in the northern hemisphere. With its tasty nuts valued on the global market, emerging discovery of the plant pharmaceutical properties, and its role in sustainable agroecosystems, there is a quest to find and develop cultivars suitable for new growing areas. In a 2‐yr study, 53 hazelnut accessions from the Corvallis germplasm collection were evaluated for nut yield, kernel percentage, weight, and shape in the San Joaquin Valley (SJV) of California. The best traits were observed for ‘Lewis’ (PI 617210) and ‘Ennis’ (PI 557045); however, a few other accessions showed characteristics supporting cultivation in the SJV growing conditions. These findings might serve as a guidance for cultivar selection for farming in that region. The evaluation also contributed to the characterization of the USDA–ARS germplasm collection of Corylus.

Diversity of hazelnut varieties and changes in plant development during introduction in the semi-arid zone

“…FAO forecasts a doubling of the modern cultivation areas for this nut crop by 2035, as well as an increase in the number of consumers on a regular basis to 2 billion, with a significant increase in the number of people who use hazelnuts in their diet as a food additive, a source of valuable food elements, rather than consuming confectionery products. This trend is more characteristic of the North American and Western European countries (Campa Negrillo et al, 2021;Jenderek et al, 2022;Horshchar & Nazarenko, 2022c).…”

“…The margin between the costs of the producer and exports is up to 40-60% annually, the Ukrainian market demands more hazelnuts, not only of its own production, but also imported ones, which leads to some crisis phenomena in the confectionery industry, and the replacement of hazelnuts with less nutritious analogues. The total Ukrainian market demand over the last 5 years amounted to 38.8 thousand tons of processed nuts worth 104.8 million dollars only as raw materials for the food industry and consumption (Krol et al, 2019;Guiné & Correia, 2020;Jenderek et al, 2022).…”

Nutritional value of some hazelnut varieties grown in the Steppe area of Ukraine

“…Фундук європейський (Corylus avellana L.) є важливою культурою в усьому світі серед культивованих видів горіхів. Протягом останніх років збільшилися урожай та площа поширення [4,5]. Ядра фундука споживають безпосередньо свіжими або смаженими, хоча більша частина використовується в промисловості, наприклад, у кондитерській.…”