Testing sugarcane varieties for ratooning ability (RA) prerelease happens over fewer ratoon crops than those achieved commercially due to inadequate resources and the need to release varieties quicker. The purpose of this study was to model yield potential and RA of sugarcane varieties. To achieve this, yield (cane yield, TCH; sucrose yield, TSH; stalk weight, STM) and quality (sucrose content, SUC%) data for eight test varieties and a control planted on different soil types (good draining and poor draining), harvesting seasons (early, mid and late), and harvested over six successive crops, were subjected to linear mixed model and regression models. The results indicated varieties had significantly different RA suggesting existence of opportunities to identify varieties with good RA. Soil types and harvesting seasons did not have any significant effect on varieties’ RA for yield traits, but were significant for SUC% with seasons having a higher impact than soils. M1176/77 was identified as the most preferred for both TCH and TSH due to high yield potential and RA. Varieties M1400/86, M695/69 and M1551/80 were suitable for SUC%. A positive relationship between TCH and STM was observed which needs to be explored further to inform breeding efforts.

由于资源不足和需要更快地释放品种，对甘蔗品种的再生能力（RA）预释放进行的测试比商业上实现的再生作物要少。本研究的目的是模拟甘蔗品种的产量潜力和 RA。为了实现这一目标，我们提供了在不同土壤类型（排水良好和排水不良）上种植的八个测试品种和一个对照品种的产量（甘蔗产量，TCH；蔗糖产量，TSH；茎重，STM）和质量（蔗糖含量，SUC%）数据、收获季节（早、中、晚），并连续收获六种作物，进行线性混合模型和回归模型。结果表明品种具有显着不同的 RA，这表明存在识别具有良好 RA 的品种的机会。土壤类型和收获季节对品种产量性状的 RA 没有任何显着影响，但对 SUC% 有显着影响，其中季节比土壤的影响更大。由于高产潜力和 RA，M1176/77 被认为是 TCH 和 TSH 的最佳选择。品种M1400/86、M695/69和M1551/80适合SUC%。 TCH 和 STM 之间存在正相关关系，需要进一步探索，为育种工作提供信息。