2个不同生态型对甘蔗开花的影响

摘要

选取11个开花迟、难的甘蔗亲本作为供试材料,分别种植于五指山A地和B地,比较分析2个不同生态类型对甘蔗始花期和抽穗率情况的影响.结果表明,在所选取的亲本材料中,只有 ROC1和粤糖91-976在2地的抽穗率无显著差异,其余的9个亲本在B地的抽穗率均极显著高于A地.其中,粤糖91-976、粤糖93-159和云蔗99-601在B地的抽穗率表现较好,分别为76.3%、74.2%和84.6%.同一个亲本种植于2地的始花期也有差异,ROC22和粤糖93-159在2地的始花期相同,其余能够在2地表现开花的甘蔗亲本,种植于B地的比种植于A地的早.%11 late(shy)-flowering sugarcane parents were selected as test materials, and were planted in location A and B in the Five Fingers Mountain respectively. The effects of two different ecological types on the flowering period and heading rate were analyzed. The results showed that there was no significant difference in the heading rate of ROC1 and Yuetang 91-976 between these 2 locations, and the heading rate of the other 9 parents in B was significantly higher than that in A. Among them, Yuetang 91-976, Yuetang 93-159 and Yunzhe 99-601 had better heading rate in B, which was 76.3%, 74.2% and 84.6% respectively. The flowering period of the same parents planted in the two places was also different. The flowering period of ROC22 and Yuetang 93-159 was the same in both places. The other sugarcane parents that could display flowering in the two places had earlier flowering in B than in A.