不同播种处理对桐花树胚轴萌发和生长的影响
Effects of Different Sowing Treatments on Germination and Growths of Aegiceras corniculatum Hypocotyls
覃杰 1杨景竣 1田红灯 1韦海航 1刘秀 1周劲航 2李进华1
作者信息
- 1. 广西壮族自治区林业科学研究院,广西南宁 530002
- 2. 广西大学,广西南宁 530004
- 折叠
摘要
为筛选出较适合桐花树(Aegiceras corniculatum)胚轴萌发的处理方式,设置种皮(去皮、留皮)、播种角度(水平、垂直)和浸种(0、24、48、72和96h)3种不同播种处理,分析不同处理对桐花树胚轴萌发和生长的影响.结果表明,浸种处理显著提高保留种皮胚轴的发芽率,大部分情况下降低去种皮胚轴的发芽率;留种皮垂直点播处理下,除48h浸种处理外,其他浸种处理的胚轴发芽率均高于留种皮水平播种处理;三因素方差分析表明,3种处理对胚轴发芽后生长的影响是相对独立的,种皮和播种角度处理主要影响叶片和根系生长.隶属函数分析表明,在保留种皮情况下,浸种96h并水平播种,桐花树胚轴萌发和生长效果较好;在去种皮情况下,不浸种并垂点直播,效果较好.
Abstract
In order to select better treatments for Aegiceras corniculatum hypocotyl germination,three different sowing treatments were set including seed coat(removed or not removed),sowing angle(horizontal or vertical)and soaking(0,24,48,72 and 96 h).Effects of different treatments on germination and growths of A.cornicula-tum hypocotyls were analyzed.Results showed that soaking treatments increased germination rates of hypocot-yls with seed coats significantly,and decreased germination rates of hypocotyls without seed coats in most cas-es.Under treatments of vertical sowing with seed coats,germination rates of different soaking time were better than those in horizontal sowing with seed coats except for soaking 48 h.Effects of three treatments on growths after hypocotyl germination were relatively independent by three-factor analysis of variance,and seed coat and sowing angle treatments mainly affected growths of leaves and roots.Membership function analysis showed that better treatment was soaking seed for 96 h and horizontal sowing when seed coats were retained with better ger-mination and growths of A.corniculatum hypocotyls,and better treatment was without soaking and vertical sow-ing when seed coats were removed.
关键词
播种处理/胚轴/萌发/生长/桐花树Key words
sowing treatment/hypocotyl/germination/growth/Aegiceras corniculatum引用本文复制引用
基金项目
广西林业科技推广示范项目(桂林科研[2021]1号)
中央财政林草科技推广示范项目([2022]TG18号)
广西林木良种繁育补助项目()
出版年
2024
国家科技期刊平台
NSTL
万方数据