PDF(Pubmed)
Abstract：
This research assessed the quantitative and qualitative reactions of commercially grown sugar beets to four different harvest dates and their yield stability. The study followed a split-plot design within a randomized complete block design over 3 years. The main plot involved 10 sugar beet cultivars, while the subplot involved four harvest dates: August 13 (HD1), September 7 (HD2), October 3 (HD3), and November 12 (HD4). The study found that environmental conditions, genotypes, and harvest dates significantly affected various traits of sugar beet. Yearly environmental variations and their interactions with genotypes and harvest dates had substantial impacts on all measured traits at the 1% probability level. Additive main effect and multiplicative interaction analysis based on white sugar yield indicated that genotype and environment\'s additive effects, as well as the genotype-environment interaction, were significant at 1% probability level. Shokoufa and Arya, which exhibit high white sugar yield (WSY) and low first interaction principal component (IPC1) values, are identified as desirable due to their stability across different environments. Among the harvest dates in different years, the fourth and third dates showed a higher yield than the total average. Perfekta and Ekbatan exhibited high specific adaptability. According to the multi-trait stability index, Arta, Arya and Sina were recognized as stable and superior across all measured traits.
摘要：
这项研究评估了商业种植的甜菜对四个不同收获日期的定量和定性反应及其产量稳定性。该研究在3年的时间内进行了随机完整块设计中的分裂图设计。主要地块涉及10个甜菜品种，而子图涉及四个收获日期：8月13日（HD1），9月7日（HD2），10月3日（HD3），11月12日（HD4）。研究发现环境条件,基因型，和收获日期显着影响甜菜的各种性状。每年的环境变化及其与基因型和收获日期的相互作用在1％的概率水平上对所有测量性状产生了重大影响。基于白糖产量的加性主效应和乘法互作分析表明,基因型和环境的加性效应,以及基因型与环境的相互作用，在1%的概率水平上是显著的。Shokoufa和Arya,具有较高的白糖产量（WSY）和较低的第一相互作用主成分（IPC1）值，由于它们在不同环境中的稳定性而被确定为理想的。在不同年份的收获日期中，第四和第三日期显示出比总平均值更高的产量。Perfekta和Ekbatan表现出很高的特异性适应性。根据多性状稳定性指数，阿尔塔,在所有测量的性状中，Arya和Sina被认为是稳定且优越的。
