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Position: Home > Articles > HA Study on Flowering Characteristics of FourCMS Lines in Indica Rice in Spring in Hainan Island Seed 1998 (5)

四个籼型水稻雄性不育系春季在海南岛开花动态的研究

作  者:
李亦军;杨桂甲;徐春山;洪德林
单  位:
江苏省洪泽县种子公司;南京农业大学农学系;江苏省淮阴市种子公司
关键词:
籼型;水稻雄性不育系;春季海南;开花动态
摘  要:
1996年3月在海南岛研究了4个籼型水稻雄性不育系各5个主茎穗和其5个单株全部穗子逐日开花动态及1天中各时段开花动态。研究表明:四个籼型不育系主茎穗始花1~2天后进入盛花,盛花持续2~3天,单株全部穗子开花2~3天后进入当日开花率达10%以上的时期,该时期持续4~5天;在每天开花中,无论主茎穗还是单株全部穗子,四个籼型不育系午后花率占多数,始花到终花历时6~8小时,每日盛花高峰在12:00~14:00时,盛花时段即盛花开始到盛花结束为11:00~16:00时。
译  名:
HA Study on Flowering Characteristics of FourCMS Lines in Indica Rice in Spring in Hainan Island
作  者:
Li YiJun; Yang Gui jia (Seed Company of Hongzhe County, Jiangsu Province. 223100)Hong Delin (Departy of Agronomy, Nanjing Agricultural University, Nanjing 210095)
关键词:
CMS lines in indica rice spring in Hainan Island flowering characteristics
摘  要:
Four cytoplasmic male sterility(CMS) lines in indica rice (Oryza sativa subsp. hsien Ting)were used to studythe flowering characterstics of 5 main panicles and all panicles of the 5 plants respectively in Hainan Island in March1996. The results were as follow: one or two days after beginning flowering, the main panicles of all the 4 CMSlines got into their flowering peak, and lasted 2 or 3 days. Two or three days after beginning flowering, all panic1esof each plant flowered at a rate of more than 10% everyday for 4 or 5 days. Both in main panicles and in all paniclesof the 4 CMS lines, most spike1et opened afternoons. With in a day, from beginning to end of flowering, the 4CMS lines lasted 6 to 8hours with a peak time of spikelet opening at 12: 00 to 14: 00. From beginning to end offlowering peak, the 4 CMS lines were at 11: 00 to 16: 00.

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