Cherry J. Xuan

Author    Correspondence author
Genomics and Applied Biology, 2026, Vol. 17, No.   
Received: 01 Jan., 1970    Accepted: 01 Jan., 1970    Published: 29 Apr., 2026

Loquat is a typical subtropical fruit tree. Its flowering and young fruit often have to survive the winter, which makes it particularly vulnerable to cold during the flowering period. Once it encounters low-temperature frost, a reduction in yield is almost inevitable. Especially in mountainous and hilly areas, many people often only consider the variety, but the aspect is equally important. The amount of sunlight received, the heat variation between day and night, and whether cold air is prone to sink and accumulate on different aspects will all cause differences in the minimum temperature during the flowering period, and the probability of frost will also change accordingly. Based on relevant meteorological standards and risk assessment data, and in combination with the background of the 2008 southern low-temperature rain, snow and ice disaster, we have sorted out a connection from aspect to microclimate, then to frost damage, fruit setting and yield stability. It should be noted that on calm, stable and clear nights, radiation frost is more obvious, and cold air often slides down the slope and accumulates in low-lying areas. At this time, the slope position and cold air drainage conditions often affect the temperature distribution together with the aspect. Therefore, when planning the orchard layout, considering the aspect in the comprehensive assessment is more conducive to stabilizing the yield.