Process-based indicators for timely identification of apricot frost disaster on the warm temperate zone, China

Abstract

Frequent occurrences of extreme cold weather processes create severe agricultural/forest frost events, even given the background of global warming. In the warm temperate zone of China, which is the largest planting area for fresh apricot, late spring frost disaster has become one of the major meteorological hazards during flowering. To prevent cold weather-induced apricot frost events and reduce potential losses in related fruit economic value, it is vital to establish a meteorological indicator for timely and accurate identification of cold weather process-based apricot frost events, to provide support for timely apricot frost monitoring and warning in late spring. In this study, daily minimax temperature (𝑇 𝑚𝑖𝑛 ) and apricot frost disaster data during flowering were combined to establish meteorological identification indicators of apricot frost based on cold weather processes.A process-based apricot frost model 𝑓(𝐷, 𝑇 𝑐𝑢𝑚 ) was firstly constructed, and characteristics of 𝑇 𝑐𝑢𝑚 (accumulated harmful temperature) were explored under different D (duration days) based on the representation of historical apricot frost processes. Thresholds for the 𝑇 𝑐𝑢𝑚 for apricot frost in 1, 2, 3, 4 and more than 5 days of apricot frost process were determined as -1.51, -2.92, -4.39, -5.84

Climate change impacts on temperate fruit and nut production: a systematic review

“…As temperature increases, prolonged drought events and variable precipitation patterns are becoming a major concern since they can cause intense drying and a reduction of irrigation water resources ( Ponti et al., 2009 ; Gargouri et al., 2012 ; Ronco et al., 2017 ; Silva et al., 2018 ). Increased exposure of flowering trees to spring frost damage has also been studied, since early flowering due to increased winter temperature may expose flowers to spring frost events ( Blanke and Kunz, 2009 ; Eccel et al., 2009 ; Matzneller et al., 2016 ; Leolini et al., 2018 ; Rojas et al., 2021 ; Yang et al., 2021 ; Fernandez et al., 2023 ). To avoid spring frost damage during the flowering period, many agricultural systems include artificial roof systems, wind machines or water sprinkler systems for protection ( Ohata et al., 2017 ), or rely on late-blooming cultivars ( Guo et al., 2019 ; Liu et al., 2021 ; Sapkota et al., 2021 ).…”

Estimation of Blooming Start with the Adaptation of the Unified Model for Three Apricot Cultivars (Prunus armeniaca L.) Based on Long-Term Observations in Hungary (1994–2020)

“…Making estimations for the future using climate model data requires other preliminary studies, because the extension of the phenological models for the future may be questionable [7,9,64,68,83,84], though we also can find very promising new results [85,86].…”

Identification of potential antioxidant peptides from protein hydrolysates of pearl oil apricot almonds: Combination of in vitro and molecular docking studies

“…The pearl oil apricot is a variant of the apricot tree ( Prunus armeniaca L., Rosaceae family), widely cultivated in northern China (Yang et al., 2021). The unmature fruit is green, whereas the ripe fruit is subtransparent and yellow, with a glossy surface and an appearance similar to a pearl.…”