André Schoffel, S. J. Lopes, Jana Koefender, J. N. Camera, D. P. Golle, A. D. Lúcio
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引用次数: 0
摘要
扦插选育是快速繁殖法生产优质苗的重要环节。本研究旨在评价不同直径木薯茎插条的发芽能力。试验采用5 × 2全随机设计，分5个种植季节(6、7、8、9、10)进行，共10个处理，20个重复。处理方式为不同种植季节和直径小于20 mm (15 ~ 19.99 mm)和大于20 mm (20 ~ 25 mm)的插条组合。测量每根茎的长度、直径和重量。评估每个小区的平均出芽天数、成活率和出芽指数。9月种植直径为20 ~ 25mm的茎插条，即可获得木薯快速增殖法插条。
Characteristics and production of cassava stem cuttings for rapid multiplication method
Selection of stem cuttings is an important step for production of high-quality seedlings by rapid multiplication method. This study aimed to assess the sprouting capacity of cassava stem cuttings of different diameters. Experiments were conducted at five planting seasons (June, July, August, September, and October) under a completely randomized design in a factorial scheme (5 × 2), with ten treatments and 20 replications. Treatments consisted of combinations between planting seasons and stem cuttings with diameters lower (15 to 19.99 mm) and higher (20 to 25 mm) than 20 mm. Each stem cutting was measured regarding length, diameter, and weight. The mean number of days for emergence, percentage of survival, and sprouting index were assessed at each plot. Planting of stem cuttings with diameter between 20 and 25 mm in September was adequate for obtaining cassava cuttings for the rapid multiplication method.
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