Genetic parameters were estimated for frosty pod rot resistance and yield components in cacao using a linear mixed model approach (restricted maximum likelihood and best linear unbiased prediction). Two progeny trials established in the Rosario Izapa Experimental Field of the INIFAP in Chiapas, Mexico, were evaluated for frosty pod rot incidence and yield components, including the number of pods per tree, bean dry weight per tree, number of beans per pod, bean dry weight per pod, seed index, and pod index, for 4 years. Genetic correlations, age-age correlations, and heritabilities were estimated. The narrow-sense heritability for frosty pod rot resistance was 0.46, and for the yield components, it ranged from 0.14 to 0.99. Backward selection, using UF-273 and Pa-169 as parents for new combinations, resulted in a reduction from −36.54 to −29.05% in frosty pod rot, respectively. The genetic correlations between bean dry weight per tree and frosty pod rot, number of pods per tree, number of beans per pod and pod index were −0.72, 0.89, 0.25, and 0.40, respectively (all significant at p < 0.01). Age-age correlations and heritabilities from data subsets indicated that the first 2 years of evaluation and evaluating for only two specific months (August to September) in the year should result almost in the same genetic estimates as using all 4 years data, for key traits, including frosty pod rot resistance, reducing the costs, and accelerating breeding decisions.

使用线性混合模型方法（限制最大似然性和最佳线性无偏预测）估算可可豆中霜荚果腐烂抗性和产量成分的遗传参数。在墨西哥恰帕斯州INIFAP的罗萨里奥·伊萨帕实验场中建立的两项后代试验，评估了霜冻荚果腐烂的发生率和产量构成因素，包括每棵树的荚果数，每棵树的豆干重，每荚果的豆数，豆每荚干重，种子指数和荚果指数，为期4年。遗传相关性，年龄-年龄相关性和遗传力进行了估计。耐霜冻荚膜腐烂的狭义遗传力为0.46，而产量成分的窄义遗传力范围为0.14至0.99。使用UF-273和Pa-169作为新组合的父级进行向后选择，结果从-36.54降低到-29。霜冻豆腐分别为05％。每棵树的豆干重与霜冻的豆荚腐烂，每棵树的豆荚数，每棵豆荚的豆数和豆荚指数之间的遗传相关性分别为-0.72、0.89、0.25和0.40（均在p <0.01）。来自数据子集的年龄-年龄相关性和遗传力表明，对于关键性状，评价的前2年以及一年中仅两个特定月份（8月至9月）的评价应产生与使用所有4年数据几乎相同的遗传估计。 ，包括抗冻荚果腐烂，降低成本并加快育种决策。