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Grls（Guizhou recessive long-culm）是作者1983年在杂交后代中发现的一个水稻高秆隐性新类型。本文报道了Grls及其测交F_1株高的特点。引用了国外报道的两个水稻高秆隐性品种（日本的LM_1和美国的76:4512）的资料进行比较,三者各具有不同的秆型结构。Grlc为正常伸长型。LM_1为中下部节间伸长型,76:4512为第一间伸长型。Grlc具有类似矮秆水稻的良好秆型结构及其它一些优点。它的发现,可能对进一步提高杂交水稻的制种产量和克服籼粳杂交F_1的倒伏问题带来希望。
Grls (Guizhou recessive long-culm) is a new type of rice stalk recessive discovered by the author in hybrid progeny in 1983. In this paper, the characteristics of Grls and their F_1 plant height were reported. The data of two reported high-stalk recessive rice varieties (LM_1 in Japan and 76: 4512 in the United States) were quoted from abroad, each with different stalk-type structures. Grlc is normally elongated. LM_1 for the middle of the internodal elongation, 76: 4512 for the first elongation. Grlc has a good culm structure similar to dwarf rice and some other advantages. Its discovery may bring hope to further improve the seed yield of hybrid rice and overcome the lodging problem of F_1 between indica and japonica hybrids.