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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (3): 161-166.

所属专题： 园艺

• 农学 农业基础科学 • 上一篇    下一篇

不同植物生长物质对水培黄瓜幼苗生长和根系发育的影响

欧阳立明1,张舜杰1,陈剑峰1,李兴1,徐阳春2   

  • 收稿日期:2009-10-16 修回日期:2009-11-14 出版日期:2010-02-05 发布日期:2010-02-05

Effects of different plant growth substances on the growth and root development of water cultured cucumber seedlings

  • Received:2009-10-16 Revised:2009-11-14 Online:2010-02-05 Published:2010-02-05

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摘要：

考察了生长素类、赤霉素类、DA-6、复硝酚钠、海藻肥、细胞分裂素、脱落酸、水杨酸钠、多效唑、木醋液等16种生长物质对水培黄瓜幼苗生长和根系发育的影响。结果表明DA-6、赤霉素GA（4+7）对幼苗生长和根系发育有明显促进作用。作用浓度下的海藻肥在处理初期可促进新叶和侧根发生，而对主根伸长有明显抑制。萘乙酸钠、水杨酸钠、脱落酸等对水培幼苗生长表现出强烈的抑制和毒性。研究结果可为在田间应用上述植物生长物质提供借鉴。

Abstract:

Effects of 16 plant growth substances (PGSs), including auxin, gibberellin (GA), diethyl aminoethyl hexanoate (DA-6), compound sodium nitrophenolate, seaweed fertilizer, cytokinin, abscisic acid, sodium salicylate, paclobutrazol, pyroligneous liquor etc. on the growth and root development of water cultured cucumber seedlings were investigated. Among these PGSs, the promoting effects of DA-6 and GA4+7 were higher than that of control. Seaweed fertilizer could promote the development of leaves and lateral roots but inhibit the elongation of taproots. Sodium naphthalene acetate, sodium salicylate and abscisic acid showed strong inhibition and toxicity to water cultured seedlings. The results obtained above showed some significance for PGSs application in farms.