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首页> 外文期刊>Horticultura Brasileira >Fenologia e componentes agron?micos de morangueiros de primeiro e segundo ciclo
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Fenologia e componentes agron?micos de morangueiros de primeiro e segundo ciclo

机译：第一和第二周期草莓的物候和农艺成分

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Several strawberry growers have cultivated the same plants for two consecutive cycles aiming a greater economic return after seedling transplant. However, the phenological development and the agronomic potential of second-cycle strawberry have to be estimated. This research was installed to estimate the thermal need, leaf appearance rate, phyllochron and yield of strawberry cultivars in two consecutive crop cycles in the region of the Third Planalto Paranaense. Cultivars Camarosa, Camino Real, Albion, Aromas, Monterrey and San Andreas were evaluated in the first and second growing cycles using completely randomized blocks and four replications. Leaf appearance rate was estimated by linear regression coefficient between the number of leaves and the accumulated thermal sum. Phyllochron was estimated by the inverse of regression coefficient. Aromas was the only cultivar with an increased fruit production in the second cycle. On the contrary, there was a considerable reduction of production for ‘Camino Real’, ‘Albion’, ‘Monterrey’ and ‘San Andreas’ in that same cycle. The highest number and mass of marketable fruits of the second and first cycles were observed for ‘Camarosa’ and ‘Camino Real’, respectively. In the second crop cycle, strawberry cultivars required a lower thermal sum to begin flowering and fruit harvest. The plants presented a higher leaf appearance rate and low phyllochron values.
机译：一些草莓种植者已经连续两个周期种植相同的植物，目的是在幼苗移植后获得更大的经济回报。但是，必须估算第二轮草莓的物候发展和农艺潜力。安装这项研究的目的是估计巴拉那托第三高原地区两个连续作物周期中草莓品种的热需求，叶片出现率，叶时轮和产量。在第一个和第二个生长周期中，使用完全随机的区块和四次重复评估了Camarosa，Camino Real，Albion，Aromas，Monterrey和San Andreas品种。通过叶片数与累积热量之和之间的线性回归系数估计叶片出现率。通过回归系数的倒数估算出Phyllochron。香气是第二个周期中唯一增加果实产量的品种。相反，“ Camino Real”，“ Albion”，“ Monterrey”和“ San Andreas”的产量在同一周期内大幅减少。在第二和第一个周期中，“ Camarosa”和“ Camino Real”的可销售水果数量和质量最高。在第二个作物周期中，草莓品种需要较低的热量才能开始开花和收获水果。这些植物表现出较高的叶片出现率和较低的叶序数。

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