辽宁滨海稻区水稻品质性状分析
2023-07-21王彤陈广红王绍林夏明郑英杰王莹王睿鹏张丽丽
王彤 陈广红 王绍林 夏明 郑英杰 王莹 王睿鹏 张丽丽



摘 要:为了探究辽宁滨海稻区新品种(系)品质性状间的相关性,以207份水稻新品种(系)为材料进行分析,测定结果表明,品质性状指标间都存在显著或极显著相关性;糙米率平均值为81.28%,达到国家优质米一级标准。垩白粒率与垩白度呈极显著正相关;其他性状间相关系数均未达到显著水平;垩白粒率、垩白度和整精米率达标情况较差,是今后滨海稻区水稻育种品质改良的重点。
关键词:辽宁滨海稻区;品质性状;品质改良
中图分类号:S-3;S511 文献标志码:A文章编号:1673-6737(2023)03-0018-03
Analysis of Rice Quality Traits in Coastal Rice Region of Liaoning
WANG Tong , CHEN Guang-hong , WANG Shao-lin , XIA Ming , ZHENG Ying-jie ,
WANG Ying , WANG Rui-peng , ZHANG Li-li*
(Liaoning Institute of Saline-Alkali Land Utilization, Panjin Liaoning 124010, China)
Abstract:In In order to explore the correlation between the quality traits of new varieties(lines) in coastal rice area of Liaoning, 207 new rice varieties( lines ) were used as experimental materials. The results showed that there was a significant or very significant correlation between the quality traits and indicators. The average rate of brown rice is 81.28%, which reaches the national first-class standard of high-quality rice. The chalk white particle rate was positively correlated with chalk whiteness. The correlation coefficients between other traits did not reach significant levels; The chalk white grain rate, chalk whiteness and polished rice rate are poor to meet the standards, which is the focus of rice breeding quality improvement in coastal rice area in the future.
Key Words: Coastal rice area of Liaoning, Quality trait, Improvement of rice quality
農业是国民经济的基础,保证农业发展是关系国计民生的大事。水稻是我国主要粮食作物之一。近年来,随着人民生活水平提高,对稻米产量和品质提出了更高要求,品质改良已经成为水稻育种工作者重要的育种指标[1]。对水稻产量性状与品质性状的相关性,许多学者进行了大量研究,结果认为水稻品质之间存在着复杂关系[2]。辽宁滨海稻区属于暖温带大陆性半湿润季风气候区,四季分明,雨热同季,光照充足。该地区土壤以轻度和中度盐渍化土壤为主,盐分组成以硫酸盐型和硫酸盐氯化物型土为主,氯化物型盐土较少,属于滨海盐渍土。盘锦稻区水稻总面积11万hm2,平均单产已超过9.6 t/hm2,年总产达到110万t,已成为我国重要的高产优质水稻产区[3]。研究采用了多重比较和相关分析的方法,分析了盘锦稻区207个品种(系)品质性状之间的相互关系,为北方粳稻育种进一步提升稻米品质提供参考。……
