Meiosis stage in apricot pollen grains as a biomarker of the end of the dormant period
https://doi.org/10.25684/0513-1634-2023-148-36-42
Abstract
The article presents the results of modeling the timing of flowering Armeniaca vulgaris Lam. based on the Krymsky Amur cultivar. To determine the estimated flowering date, a simple classical thermal model of external influence was chosen. The phases at the end of the formation of sporogenous tissue – meiosis, were used as a biological marker of the beginning of the vegetation of apricot cultivars and the exit of the plant from dormancy. The sum of thermal units required for the onset of the flowering phase is from 276.0°C to 352.8°C. The influence of air temperature in the spring period on the acceleration or deceleration of vegetation processes by 1-2 weeks was noted. The result of testing the model showed that it accurately describes the interannual variability of crop flowering dates. The discrepancy is no more than 2-4 days in 87% of cases.
About the Author
V. V. Korzin
Никитский ботанический сад – Национальный научный центр
Russian Federation
Russian Federation
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Review
For citations:
Korzin V.V. Meiosis stage in apricot pollen grains as a biomarker of the end of the dormant period. Bulletin of the State Nikitsky Botanical Gardens. 2023;(148):36-42. (In Russ.) https://doi.org/10.25684/0513-1634-2023-148-36-42
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