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Study on Morphological Traits and Physiological Basis of New Rice Variety Yanjing 188
Author(s): 
Pages: 29-32,43
Year: Issue:  6
Journal: Reclaiming and Rice Cultivation

Keyword:  粳稻 盐粳188 形态特征 生理基础;
Abstract: 以北方粳稻品种金珠1号、辽粳9号为对照,研究了高产优质水稻新品种盐粳188的形态特征和生理基础。结果表明:盐粳188有效穗数比辽粳9号多14.5%,穗粒数比金珠1号多28.7%,总库容量比金珠1号、辽粳9号高25.88%和23.08%;茎基部茎鞘干物质量比金珠1号、辽粳9号重5.06%和13.49%,叶面积比金珠1号、辽粳9号高37.91%和41.39%,消光系数比金珠1号、辽粳9号低42.22%和60%;叶绿素下降幅度比金珠1号、辽粳9号小5.09%和4.82%,并且后期根系伤流强度下降较慢。单位面积总干物质量齐穗期盐粳188比金珠1号、辽粳9号高14.15%和15.08%,成熟期高13.82%和17.7%,增加量高17.89%和2.78%;齐穗至成熟期CGR比金珠1号、辽粳9号高19.82%和2.71%。盐粳188库大源足、株型较好,生育后期功能叶叶绿素含量较高、根系活力旺盛,干物质积累与生产能力较强,具有高产品种应有的形态特征和生理基础,并有较大的增产潜力。
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