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根据15个橡胶无性系分别在一个正常年份(1997-1998)及一个特殊高产年份(1998-1999)不同月份间的产量表现就其对不同气候环境的特殊适应性进行了分析研究。2个年份割胶期间(5月份至次年1月份)的产量分析结果显示,各参试无性系对于不同月份及年份气候环境变化的反应均存在不同程度的差异,并且各气候因子与产量的相关程度也随气候环境的不同而有所变化。为了了解和明确不同气候因子对基因型-环境(GE)互作效应的贡献和影响,GE互作被剖分成由环境变量引起的异质性和剩余GE互作2个部分。由于由环境指数引起的异质性达极显著水平(p=0.01),这意味着无性系的稳定或不稳定性取决于环境指数的线性效应。此外,源自各气候因子的异质性方差均不显著,这表明这些因子中没有任何一个足以单独对GE互作中的异质性加以解释。最后,本文利用STABLE程序对无性系的产量及稳定性进行了同步筛选,结果显示,所有参试无性系中以PB235,RRII118,RRII203,RRIM703,以及RRIM600的产量较高且稳定性较强。
Based on the production performance of 15 rubber clones in different months of a normal year (1997-1998) and a special high-yielding year (1998-1999), their special adaptability to different climatic environments was analyzed. The results of yield analysis during the two years of tapping (May to January) showed that the clonal responses to climatic and environmental changes in different months and years differed to some extent, and the correlation between the climatic factors and yield The degree also varies with the climate and environment. In order to understand and clarify the contributions and impacts of different climatic factors on genotype-environment (GE) interactions, GE interactions are divided into two parts: the heterogeneity caused by environmental variables and the remaining GE interactions. Due to the extremely significant level of heterogeneity caused by the environmental index (p = 0.01), this means that the stability or instability of clones depends on the linear effect of the environmental index. In addition, the heterogeneity variances derived from each climatic factor are not significant, indicating that none of these factors is sufficient to account for the heterogeneity in the GE interaction alone. Finally, the STABLE program was used to simultaneously screen clonal yield and stability. The results showed that the yield and stability of PB235, RRII118, RRII203, RRIM703 and RRIM600 were higher in all tested clones.