---

作 者 ：王人民;杨肖娥;杨玉爱

期 刊 ：作物学报 1999年 25卷 04期 页码：466-473

关键词：水稻品种；锌营养效率；出叶速率；干物质产量；

Keywords:Rice genotypes, Zn-efficiency, Leaf growth rate, Dry matter yield,

摘 要 ：在营养液水培条件下，研究了不同Zn2+活度((pZn2+9.7, pZn2+11.0和pZn2+> 11.5 )对水稻根叶的生长发育和若干生理特性的影响。结果表明：低Zn2+活度下，对水稻秧苗的出叶速度减慢，但不同基因型间存在明显差异，极度缺锌(pZn2+>11.5)时，敏感品种只生长3.5叶，而耐低锌品种生长4.5叶左右；轻度缺锌或缺锌初期叶绿素含量上升和

Abstract:Six rice genotypes with different Zn efficiency were cultivated at different Zn2+ activities (pZn2+9.7，pZn2+11.0 and pZn2+>11.5) in nutrition solution. Effect of different Zn2+ activities on the growth and some physiological characteristics of leaf and root of rice were studied. It was found that t

---