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Evaluation Method and Classification of Climate Quality of Myrica rubra
YIYong, LIMinhua
Chin Agric Sci Bull ›› 2026, Vol. 42 ›› Issue (9) : 130-137.
PDF(1236 KB)
Abbreviation (ISO4): Chin Agric Sci Bull
Editor in chief: Yulong YIN
PDF(1236 KB)
Evaluation Method and Classification of Climate Quality of Myrica rubra
The aim is to provide meteorological basis for objective evaluation of the quality level of Myrica rubra, rational planting layout of Myrica rubra and improving the meteorological conditions for the formation of quality of Myrica rubra. Based on the measured data of soluble solids and total acid of Biqi and Dongkui Myrica rubra at multiple altitudes in Huaihua area from 2021 to 2023, the soluble solids and total acid quality of the two types of Myrica rubra were first divided into four grades, and a comprehensive actual quality evaluation method and standard were established. Combined with the corresponding meteorological data, the key meteorological factors affecting the quality of Myrica rubra were revealed by using the statistical methods of path correlation analysis, stepwise regression analysis and cluster analysis. Some conclusions were as follows: The key meteorological factors affecting the soluble solids of Biqi Myrica rubra were the number of days with less than 1 hour of sunshine during 5 days before maturity, and the number of rainfall days with more than 5 mm during 9 days before maturity; the key climatic factors affecting total acid were average maximum temperature during 44 days and during 19 days before maturity; the key climatic factors affecting the soluble solids of Dongkui Myrica rubra was sunshine hours during 8 days before maturity; and the key climatic factors affecting total acid were average temperature during 30 days before maturity and average maximum temperatures during 33 days before maturity. The less rainy days and more sunlight during 9 days before maturity (color changes from red to purple), the higher the content of soluble solids; the higher the average temperature and maximum temperature after the fruit setting stage of Myrica rubra, the lower the total acid content. The meteorological simulation models and climate quality evaluation models for two kinds of Myrica rubra were constructed respectively. After regression calculation and actual test, the climate quality grade and the actual quality grade were basically consistent, indicating that the evaluation method had high accuracy and could be used for the evaluation practice of Myrica rubra quality grade.
Myrica rubra / real quality / climate quality / gradation / meteorological indicators / evaluation methods
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