摘要
为探究农用植物酵素对干旱胁迫下高粱种子的缓释作用,以两个高粱品种红缨子和红珍珠种子为试验材料,分别对其种子在不同条件下的发芽率、发芽势、发芽指数等指标进行测定,研究农用植物酵素对干旱胁迫条件下高粱种子萌发和生长的影响。结果表明,随PEG-6000溶液浓度的增加,两个高粱品种种子发芽率、发芽势和发芽指数均呈降低趋势,当PEG-6000溶液浓度为20%时,红缨子和红珍珠发芽率、发芽势及发芽指数比ck分别降低了52.52%、14.44%、6.32和52.22%、15.55%、4.22,差异均达显著水平。不同浓度农用植物酵素对种子的萌发效果不同,当浓度稀释为1200倍时对两个高粱品种的萌发效果最好,红缨子和红珍珠的发芽率分别比ck增加了0.92%和5.56%,种子发霉率比ck分别降低了8.89%和7.63%。当添加稀释1200倍的农用植物酵素处理干旱胁迫条件下的高粱种子,种子萌发抑制得到解除,对PEG-6000溶液浓度为20%胁迫条件下的种子解除效果最为显著,红缨子和红珍珠发芽率分别提高了16.67%和37.78%,发霉率分别降低了9.03%和10.78%。说明,稀释1200倍的农用植物酵素浓度是红缨子和红珍珠高粱种子最适的萌发浓度,且该浓度的农用植物酵素能解除高粱种子在干旱胁迫条件下受到的影响。
To explore the slow release effect of agricultural plant Jiaosu on sorghum seeds under drought stress,using Hongyingzi and Hongzhenzhu seeds as experimental materials,the germination rate,germination potential,germination index,and other indicators of two sorghum seeds under different conditions were measured,and the effects of agricultural plant Jiaosu on the germination and growth of sorghum seeds under drought stress were studied.The results showed that with the increase of PEG-6000 solution concentration,the germination rate,germination potential,and germination index of the two sorghum seeds showed a downward trend.When the PEG-6000 solution concentration was 20%,the germination rate,germination potential,and germination index of Hongyingzi and Hongzhenzhu decreased by 52.52%,14.44%,6.32,and 52.22%,15.55%,4.22,respectively,compared to ck,with significant differences.Different concentrations of agricultural plant Jiaosu had different effects on seed germination.When the concentration was diluted to 1200 times,the germination effect of the two sorghum varieties performed best.The germination rates of Hongyingzi and Hongzhenzhu increased by 0.92%and 5.56%compared to ck,respectively,and the seed mold rate decreased by 8.89%and 7.63%compared to ck,respectively.When sorghum seeds under drought stress were treated with agricultural plant Jiaosu diluted by 1200 times,the inhibition of seed germination was relieved,and the most significant effect was achieved when the concentration of PEG-6000 solution was 20%.The germination rates of Hongyingzi and Hongzhenzhu increased by 16.67%and 37.78%,respectively,and the mildew rates decreased by 9.03%and 10.78%,respectively.This indicated that the concentration of agricultural plant enzymes diluted by 1200 times was the most suitable germination concentration for Hongyingzi and Hongzhenzhu,and this concentration of agricultural plant Jiaosu could relieve the effects of drought stress on sorghum seeds.
作者
戴燚
黄仁权
高永
何安会
苏跃
DAI Yi;HUANG Renquan;GAO Yong;HE Anhui;SU Yue(Guizhou Vocational College of Agyiculture,Guiyang 551400,China)
出处
《种子》
北大核心
2023年第3期107-111,119,共6页
Seed
基金
贵州省教育厅职业教育科学研究项目
贵州省高层次人才培养计划一“百”层次人才项目(黔科合平台人才[2016]5672)
贵州农业职业学院课题(院级重点YJKT 2020-10)。
关键词
农用植物酵素
高粱
干旱胁迫
种子萌发
agricultural plant Jiaosu
sorghum
drought stress
seed germination