摘要： 针对张杂谷3号具有抗性强、产量高的特征,对其叶片解剖结构、叶表皮特征、茎的解剖结构以及穗分化特性进行综合研究,探讨了张杂谷3号与抗旱性、抗逆性以及高产有关的结构特征。结果表明,张杂谷3号为C₄植物,叶片具有大维管束、叶绿体浓绿和密集、气孔密度高,叶片表皮毛密集,特化细胞多,气孔内陷的特征。茎具有维管束面积大,穗茎淀粉含量高的特征。谷子穗分化阶段枝梗原基数量多、密集,发育成的谷穗大、穗码密集,以上研究为其抗旱、高产能力的评价以及机理研究提供形态解剖学方面的依据。

关键词: 张杂谷3号, 解剖结构, 叶片, 茎, 穗

Abstract: Zhangzagu 3 hao is a hybrid millet breeding by the Zhangjiakou Academy of Agricultural Sciences using millet thermo-sensitive line.Zhangzagu 3 hao has the characteristics that are high drought resistance,resistance to fall,strong adaptability,high and stable yield.The present paper deals with an anatomy analysis of stem and leaf and spike of Zhangzagu 3 hao.The results showed that Zhangzagu 3 hao was characteristic of a C₄ species or Kranz leaf.A layer of well developed bundle sheath cells surrounds the vascular tissue.The bundle sheath cells contained numerous chloroplasts and the bundle sheath chloroplasts were considerably larger and elongated.The stems had bigger vascular bundle area and the ear stem had high starch content.Millet ear differentiation stage had more and dense branch primordium number which can develop into the big ears.At last,we can gain high yeild of Zhangzagu 3 hao.This paper discussesed the high stress resistance and high yield character of Zhangzagu 3 hao on the structure characteristics,to provided anatomical evidence for evaluation the stress resistance and high yield ability of this millet.

Key words: Zhangzagu 3 hao, Anatomical structure, Leaf, Stem, Ear

中图分类号: 

• S515.03