Marussa Cássia Favaro Boldrin, Renato Lara de Assis, K. Costa, G. Simon, Antonio Joaquim Braga PEREIRA BRAZ, Alessandro Guerra da Silva, J. Torres, Rose Luiza Moraes Tavares
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引用次数: 0
Abstract
The millet straw dynamics at different sowing dates in the off-season were evaluated in an experiment conducted in Rio Verde-GO. The experimental design used was randomized blocks arranged in a split-plot scheme, with four replications and four sowing dates. Five millet genotypes, two cultivars (ADR300 and ADR500) for biomass production, a dual-purpose hybrid (ADR8010) for grain and biomass production, and two hybrids (ADR9010 and ADR 9020) for grain production were used. Biomass production was performed at 0, 60, 94, 140, and 178 days after grain harvest. The millet cultivars and hybrids showed similar dry biomass production at different sowing dates, with an average production of 8,917 kg ha-1. The ADR300 and ADR500 cultivars and the ADR8010 hybrid showed similar dry biomass decomposition rates at all sowing dates. The hybrids ADR9010 and ADR9020 showed lower rates of straw decomposition in the fourth sowing date than the other genotypes. The hybrids ADR9010 and ADR9020, specific for grain production, have the potential for biomass production similar to the cultivars, regardless of the sowing dates.
在里约热内卢Verde-GO进行了谷子秸秆淡季不同播期动态变化的研究。试验设计采用分块法随机分组，4个重复，4个播期。选用5个谷子基因型，2个用于生物质生产的品种(ADR300和ADR500)、1个用于粮食和生物质生产的双用途杂交种(ADR8010)和2个用于粮食生产的杂交种(ADR9010和ADR 9020)。在收获后的第0、60、94、140和178天进行生物质生产。谷子品种和杂交种在不同播期的干生物量产量相似，平均产量为8,917 kg ha-1。ADR300、ADR500和杂种ADR8010各播期干生物量分解速率基本一致。杂种ADR9010和ADR9020在播期秸秆分解率低于其他基因型。杂种ADR9010和ADR9020具有与籽粒产量相近的产量潜力，与播期无关。
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