Investigation on Ploidy Level and Reproductive Characteristic of Whipgrass
26 wild accessions and 2 cultivars of whipgrass (Hemarthria compressa (L. f.) R. Br.), which collected in the fields of Sichuan Agricultural University (SAU), were used to study on their ploidy level and reproductive characteristics. The results showed that there were 4 tetraploids (14.3%), H028, H029, H052, H053, chromosome! numbers were 2n=4x=36, and 24 hexaploids (85.7%), 2n=6x=54. There was no significant correlation between geographical distribution and ploidy level in this research. From 2006 to 2008, hexaploids set few seeds, but all of the tetraploids set some seeds more or less. H052 had the highest seed set (11.22%). The tetraploids had potential for seed production, especially H052, it should be possible to obtain hybrids by crosspollination in the future.
Whipgrass Ploidy level Chromosome Reproduction Fecundity
Chen Lingzhi Yang Chunhua Tang Zhisong Huang Huijun Zhang Wenjun
Grassland Science Department, Sichuan Agricultural University, Yaan, Sichuan Province, China, 625014
国际会议
首尔
英文
82-83
2009-08-10（万方平台首次上网日期，不代表论文的发表时间）