Chilling and heat requirements and bloom frost tolerance of Prunus scoparia (Spach) C. K. Schneid and P. elaeagnifolia Spach

Omidifard, Ziba; Gharaghani, Ali

doi:10.1007/s00468-022-02311-2

Cited by 4 publications

(5 citation statements)

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“…Analysis of the data from the long-term phenological monitoring of apricot bloom on the UBC showed that the earliest cultural flowering since 1995 was observed in 2009 Correlation and regression analysis revealed a close inverse relationship (r = −0.94; p > 0.0001) between the onset of the phenophase "onset of flowering" and the air temperatures in February-March (Figure 4). A negative correlation between winter-spring temperatures and flowering dates was also observed for peach cultivars (including ten in Korea and five in North America [55]), almond [4,[56][57][58], cherry [59], apricot [60], and olive [61]. The presence of a close relationship indicates the significance of the influence of higher air temperatures in February-March on the acceleration of development and earlier flowering of trees.…”

Section: Resultsmentioning

confidence: 71%

“…After the end of organic dormancy, plants acquire the ability to grow, but under the influence of negative or low positive temperatures, they can remain in a state of forced dormancy. The lengthening of the dormant period and changes in the timing of flowering at temperatures unfavorable for the development of the plant were noted by a number of scientists for peach cultivars [53], apricot [16,19,30] and other crops [4,54].…”

Section: Resultsmentioning

confidence: 99%

“…At present, crop yields remain highly dependent (50-80%) on adverse climatic, soil and terrain factors, especially in the context of climate change [1][2][3][4][5][6]. Additionally, if errors in the placement of annual crops have a negative impact on their short-term yield (one year of decline or loss of yield) for perennial crops, these negative effects can be prolonged and manifest over many years.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the increasing warming rate, air temperatures in recent years have been significantly higher than mid-year values, which has led to a disruption in the differentiation of the flowering buds of fruit crops, and hence a decrease in yields [1,[6][7][8]. Thus, in recent years, the frequency and intensity of this occurrence has increased, and intensive development of diseases and pests has reduced crop yield by up to 50-100% [1,4,[9][10][11]. Despite available publications [12,13], the influence of climate change on the processes of ontogeny of fruit crops in the territory of the South of Russia in the 21st century has been poorly studied.…”

Section: Introductionmentioning

confidence: 99%

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Modelling of Climate Change’s Impact on Prunus armeniaca L.’s Flowering Time

et al. 2023

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This study presents the results of the development of numerical models for predicting the timing of apricot flowering, including using experimental data on the emergence of plants from a state of deep dormancy. The best results of approximation of the process of accumulation of the necessary cooling in the autumn–winter period were obtained using the sigmoidal function. Models that take into account the combined effect of temperature and photoperiod on the processes of spring development showed a high accuracy of the process of accumulation of thermal units. Based on the results of testing, two models were selected with an accuracy of 3.0 days for the start of flowering and the absence of a systematic bias, which can be considered a good quality assessment These models describe well the interannual variability of apricot flowering dates and can be used to predict these dates. The discrepancy is no more than 2–4 days in 87–89% of cases. Estimates of the timing of flowering and the end of deep dormancy are very important for increasing the profitability of fruit production in the South of Russia without incurring additional costs, by minimizing the risks associated with irrational crop placement and the selection of varieties without taking into account the specifics of climate change. When constructing a system of protective measures and dates of treatments, it is also necessary to take into account the calendar dates of the shift in the development of plants.

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Section: Resultsmentioning

confidence: 71%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modelling of Climate Change’s Impact on Prunus armeniaca L.’s Flowering Time

et al. 2023

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“…Thus, measurements taken at small, single points in leaves may increase the chance of erroneous results (Ehlert and Hincha, 2008). An increase in the concentration of soluble sugars has also been used as an indication of cold tolerance (Tinus et al, 2000;Omidifard and Gharaghani, 2022). However, caution is advised when using this as a means of screening for cold tolerance as a positive correlation does not always result as indicated in a study by Hincha et al (1996).…”

Section: 6 Methods Of Studying Frost Tolerance In Plantsmentioning

confidence: 99%