垦稻12、龙粳31两品种叶龄进程的调查分析  

Investigation and Analysis on Leaf Age Process of Kendao-12 and Longgeng-31

作　　者：梁誉[1] LIANG Yu(Tangyuan Agricultural Technology Extension Center,Jiamusi Heilongjiang 154700,China)

机构地区：[1]黑龙江省汤原县农业技术推广中心,黑龙江佳木斯154700

出　　处：《北方水稻》2020年第6期42-44,共3页North Rice

摘　　要：通过长期对当时本地的主栽品种的叶龄进程的观测,绘制成曲线图,提示出两品种出叶规律,找出了两品种穗首分化、二次枝梗分化和减数分裂期所分别对应的时间,提出了生产中注意的问题和解决办法,为生产实践中施肥技术提供了重要的理论依据。The leaf age process of the major cultivars was observed for a long time to indicate the leaf emergence rule,and the first spike differentiation,secondary branch differentiation and meiosis stage of the two cultivars were found out.According to the corresponding time,the problems and solutions in production were put forward,which provided important theoretical basis for fertilization technology in production practice.

关 键 词：垦稻12 龙粳31 叶龄进程 颖花分化 穗肥 出叶周期 

分 类 号：S511[农业科学—作物学]