Genetic Research and Utilization Reference of Saccharum spontaneum L.

• 作者: Cheng FU Chuiming ZHANG Feng ZHOU Houxiang HU Huanying XU Jiale JI Jing XIE Qinnan WANG Qiwei WU Yongsheng QIU
• 来源期刊: 农业生物技术:英文版
• 学科: 农学
• 关键词: SACCHARUM spontaneum L. First FLOWERING DATE HERITABILITY POLLEN
• 年，卷（期）: 2019,（3）
• 页码范围: 29-33
• 页数: 5页
• 分类号: S

摘要

[Objectives]The genetic characteristics of wild germplasm resources of Saccharum spontaneum L.were further investigated to provide a scientific theoretical basis for the improved hybridization of sugarcane varieties.[Methods]The first flowering date data of 112 wild resources were statistically analyzed by broad heritability for 3 consecutive years,and pollen quantity and yield were investigated to provide reference for hybridization.[Results]The broad heritability of the first flowering date of S.spontaneum was 0.079.The differences in the first flowering date between the S.spontaneum resources were in the range of 4-49 d,with an average of 13.65 d.The inter-annual changes within 20 d accounted for 90 %,and only 4.5% exceeded 30 d.The first flowering dates of some S.spontaneum resources were obviously postponed after being treated.[Conclusions]In the hybridization season,the hybridization plan must be adjusted according to the actual situation of the flowering period to make full use of it.