甜樱桃花期日灼对产量的影响

The Impact of Sunburn During Flowering Period on Yield of Sweet Cherry

本研究旨在精细分析花期日灼现象对甜樱桃产量的影响。通过在甜樱桃种植区进行实地观测、调查及收集气象数据,并利用SPSS软件进行相关性和线性回归分析,本研究探讨了甜樱桃产量与花期气象因素之间的关系。研究结果显示,甜樱桃产量与花期≤3℃的低温日数、≥30℃的高温日数以及高温期间的日照时数存在显著的负相关关系,其相关系数分别为-0.585、-0.369和-0.380,均通过了置信度为99%的显著性检验。这一发现表明,花期遭遇的低温和高温强光照(日灼)条件对甜樱桃的产量有显著影响。进一步的实地观测发现,高温强光照会导致甜樱桃的花柱干瘪,花粉活力下降,甚至产生空花药,这些问题会使得授粉过程变得困难或无法进行,进而影响最终的果品产量。本研究的结果为理解花期气象条件对甜樱桃产量的影响提供了科学依据,并对农业生产实践具有一定的指导意义。

In order to investigate the precise impact of sunburn on fruit yield during the flowering period,this study,taking sweet cherries as an example,conducted correlation analysis and linear regression analysis on yield and meteorological factors using SPSS software,through field observations,surveys,and data statistics.The results showed that the yield had a significant negative correlation with the number of days with temperatures≤3℃,the number of days with temperatures≥30℃,and the sunshine duration corresponding to the high-temperature period.The correlation coefficients were-0.585,-0.369,and-0.380,respectively,which passed the significance test with a confidence level of 99%.This indicated that low temperature,high temperature and strong light(sunburn)during the flowering period could affect the yield of sweet cherries.Field observations also found that high temperatures and strong light during the flowering period of sweet cherries could cause desiccation of the pistil,decreased pollen viability,and even empty anthers,resulting in difficulties or failure in pollination,thus affecting the yield.