摘要
本研究用不同浓度的外源Ｃａ２＋及其相关物质处理水稻秧苗，然后将秧苗水平放置，观察它们 对立苗的影响。结果表明：外源Ｃａ２＋处理促进了立苗速度和立苗幅度的提高，而不利于Ｃａ２＋浓度增加 的因素，如 Ｃａ２＋螫合剂 ＥＤＴＡ、 Ｃａ２＋通道抑制剂 ＴＦＰ处理，都抑制了水平放置苗的立苗。这从实践上 证明了Ｃａ２＋在调节植物正、负向重性反应中具有重要的作用。
The effects of exogenous Ca2+ and its related substances on the scattering-planted rice seedlings' bending upward were studied and the results were as follows: Calcium plays an important role in the gravitropism of rice seedlings and high [Ca'+] has a positive effect on the bending upward of horizontal seedlings. The EDTA and TFP inhibit the effect of Ca2+.
出处
《作物学报》
CAS
CSCD
北大核心
2001年第1期55-58,共4页
Acta Agronomica Sinica
基金
江苏省联建重点学科项目!(97-01)
关键词
抛秧稻
立苗
向重性
钙离子
向性理论
Scattering-planted rice
Bending upward
Gravitropism
Ca2+
