Cherry leaf spot (CLS), caused by Passalora circumscissa, is a fungal disease that can result in decreased fruit quality and yield due to inconsistent ripening or premature defoliation. However, there is limited information available in China about the resistance of cherry cultivars to leaf spot caused by P. circumscissa. Our study aimed to identify the resistance levels of cherry cultivars to this disease.
Fifty-two cherry cultivars, comprising 40 sweet cherry (Prunus avium), four Chinese cherry (P. pseudocerasus) and eight sour cherry (P. cerasus) cultivars, were evaluated for resistance level characterisation. Specimens of these cultivars were collected and then used to screen for P. circumscissa resistance through both detached leaf assays and natural field infection.
Our study provides a theoretical basis for cherry disease resistance breeding and rational cultivar utilisation.
BACKGROUND
Cherry production in China has risen significantly over the past decade. China now has both the largest total sweet cherry cultivation area (200 000ha) and the greatest annual sweet cherry yield (about one million tons) in the world. These increases have coincided with the rising prevalence of cherry foliar diseases in many regions of China. Leaf spot caused by P. circumscissa has emerged as a disease in cherry trees, posing a threat to sweet and sour cherry production in China. P. circumscissa primarily affects the leaves of cherry trees, resulting in early chlorosis and premature defoliation during summer. This defoliation results in the trees being more susceptible to cold-induced injury and death during winter, and also results in major reductions (about 40%) in fruit yield and fruit quality.
هذه القصة مأخوذة من طبعة Farmer's Weekly 12 August 2022 من Farmer's Weekly.
ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 9,000 مجلة وصحيفة.
بالفعل مشترك ? تسجيل الدخول
هذه القصة مأخوذة من طبعة Farmer's Weekly 12 August 2022 من Farmer's Weekly.
ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 9,000 مجلة وصحيفة.
بالفعل مشترك? تسجيل الدخول
Review: the Toyota Hilux 2.8GD-6 DC 4×4 GR-Sport III
The third iteration of the Hilux GR-Sport has finally achieved a sense of presence and style befitting its raceinspired branding. But is this the ultimate modern Hilux? Car Magazine takes a closer look.
Why maize prices soar in Kenya and Malawi but not Tanzania
Namhla Landani, an economist at the Centre for Competition, Regulation and Economic Development, University of Johannesburg, and Arthur Khomotso Mahuma, economist and researcher at the Centre for Competition, Regulation and Economic Development, University of Johannesburg, analyse the issue.
Wet carcass syndrome: a scourge in SA sheep farming
Wet carcass syndrome continues to take a huge financial toll on South African sheep farmers. Octavia Avesca Spandiel spoke to two experts about the ongoing genetic research aimed at addressing this issue.
Pollination innovation
Bee-Tech Group is transforming South African agriculture with pollination technologies that boost crop yields and enhance sustainability. Founder Michiel Bruggeman spoke to Octavia Avesca Spandiel.
The valuable addition that makes this farm tick
Owning the value chain provides farmers with far more control over their produce. However, it requires a fine balance between production and ensuring there is a strong and steady market. Lindi Botha visited Rosemary Hill to find out how this essential oil producer leverages hospitality to make the farm viable.
The benefits of recirculating aquaculture systems
A powerful set of attributes has established recirculating aquaculture systems as a cornerstone of global temperate fish farming, writes Leslie Ter Morshuizen, owner of Aquaculture Solutions.
Minister has big plans for emerging and commercial farmers
DA leader and Minister of Agriculture John Steenhuisen spoke to Glenneis Kriel about his priorities for his department over the next five years, including an increased focus on biosecurity.
New study aims to make wheat more disease resistant
A recent international study explains how bread wheat has helped to transform the ancient world on its path to becoming the iconic crop that today helps sustain a global population of eight billion.
Conservation farming and biodiversity boost soil health and sustainability
A recent academic event focused on research into the links between soil biodiversity, soil health and sustainable agriculture
What has led to the unparalleled rice shortage in Japan?
Japan is facing a rice shortage amid concerns about a potential 'megaquake', several typhoons and an annual week-long holiday, which has led to an increase in panic buying.