Schmidt Raquel, da Silva Cleidson Alves, Silva Larícia Olária Emerick, Espindula Marcelo Curitiba, Rodrigues Weverton Pereira, Vieira Henrique Duarte, Tomaz Marcelo Antonio, Partelli Fábio Luiz
Center of Agricultural Sciences, Federal University of Espírito Santo, Alegre 29500-000, Espírito Santo, Brazil.
Department of Agriculture, Federal University of Lavras, Lavras 37200-000, Minas Gerais, Brazil.
Plants (Basel). 2023 Oct 4;12(19):3476. doi: 10.3390/plants12193476.
Coffee genotypes cultivated in the Amazonian region have been gaining increasing prominence in Brazilian plantations. This study aimed to quantify nutrient accumulation in the fruits, grains, and husks of Robusta coffee genotypes cultivated in the Brazilian Amazon and estimate genetic diversity. The experiment was conducted in Alta Floresta D'Oeste-Rondônia, Brazil. To assess nutrient accumulation, fresh fruits were collected. These were dried, processed, separated into grains and husks, and subjected to chemical analysis. Nutrient accumulation in fruits, grains, and husks, as well as the grain/husk ratio, underwent analysis of variance through the F-test ( < 0.01. For each evaluated trait, the experimental coefficient of 337 variation (CVe), genetic coefficient of variation (CVg), and genotypic determination coefficient (H) were also estimated. Variability was observed among Robusta coffee genotypes, with VP06, AS4, and AS10 being the most dissimilar. LB080 had the lowest dry fruit weight and the lowest percentage of grains in relation to husks. ZD156 accumulated more K in the grains, while VP06 and AS10 were the genotypes that accumulated more nutrients in the husks. Nutrients N, K, Ca, and P are accumulated in larger quantities, necessitating the calibration of mineral fertilization dosages and distribution.
在亚马逊地区种植的咖啡基因型在巴西种植园中越来越受到关注。本研究旨在量化巴西亚马逊地区种植的罗布斯塔咖啡基因型的果实、籽粒和果壳中的养分积累，并估计遗传多样性。试验在巴西朗多尼亚州的阿尔塔弗洛雷斯塔-多韦斯特进行。为了评估养分积累情况，采集了新鲜果实。将其干燥、加工、分离成籽粒和果壳，并进行化学分析。通过F检验（<0.01）对果实、籽粒和果壳中的养分积累以及籽粒/果壳比进行方差分析。对于每个评估性状，还估计了实验变异系数（CVe）、遗传变异系数（CVg）和基因型决定系数（H）。在罗布斯塔咖啡基因型之间观察到了变异性，其中VP06、AS4和AS10差异最大。LB080的干果重量最低，籽粒相对于果壳的百分比也最低。ZD156在籽粒中积累了更多的钾，而VP06和AS10是果壳中积累更多养分的基因型。氮、钾、钙和磷等养分积累量较大，因此需要校准矿物施肥剂量和分布。
