Potato plants are often subjected to heat stress during growth and development, resulting in loss of yield and quality. However, the possibility exists that commercially important genotypes show tolerance to heat stress. In this study, we aim to investigate the morphological and physiological effects of moderate conditions of heat stress on tuberization in nine potato genotypes, and how it affects propagation using an ex vitro and in vitro system. The plant material came from the In Vitro Germplasm Bank of the International Potato Center (CIP). The incubation temperatures of the cultures in in vitro and ex vitro conditions were the ambient in the laboratory and greenhouse, respectively. In in vitro system a randomized complete block design was employed in nine genotypes, two treatments: multiplication culture medium and the same culture medium supplemented with 8.0% sucrose and 500 mg/L-...

The Amazon rainforest is one of the most biodiverse and at the same time most threatened ecosystems in the biosphere. Its different habitats provide a unique floristic pattern. Therefore, we aimed to identify the floristic arboreal composition in an area of the Amazon rainforest and determine the local patterns of diversity in its different habitats. This study was conducted around the Tambopata Research Center, Madre de Dios, Peru. To achieve our goals, we established 20 (50 × 30 m) plots distributed equally in four habitats, these being: Mauritia Palm Swamp, Floodplain Forest, Successional Floodplain Forest, and Tierra Firme Forest. In each plot, we collected all individuals with a diameter at a breast height ≥ of 10 cm. Subsequently, the individuals were identified and classified by cluster and diversity analysis. We found 57 families, 173 genera, 300 species, and 1958 individuals....

The Amazon rainforest is one of the most biodiverse and at the same time most threatened ecosystems in the biosphere. Its different habitats provide a unique floristic pattern. Therefore, we aimed to identify the floristic arboreal composition in an area of the Amazon rainforest and determine the local patterns of diversity in its different habitats. This study was conducted around the Tambopata Research Center, Madre de Dios, Peru. To achieve our goals, we established 20 (50 × 30 m) plots distributed equally in four habitats, these being: Mauritia Palm Swamp, Floodplain Forest, Successional Floodplain Forest, and Tierra Firme Forest. In each plot, we collected all individuals with a diameter at a breast height ≥ of 10 cm. Subsequently, the individuals were identified and classified by cluster and diversity analysis. We found 57 families, 173 genera, 300 species, and 1958 individuals....