首页|浸种处理对甜玉米种子萌发及活力的影响

浸种处理对甜玉米种子萌发及活力的影响

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  • 国家科技期刊平台
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为促进甜玉米Zea mays var.saccharata种子萌发,以6个甜玉米品种种子为试验材料,设置不同的浸种时间(0,4,8,16,24 h),进行种子发芽试验,并分析种子相关活力指标的变化.结果表明:浸种8h能最有效提高6个品种种子的发芽率,加快发芽速度,降低种子浸出液的电导率,种子脱氢酶活力显著提高.建议甜玉米播种前,进行浸种处理8h,以提高其活力水平和发芽能力.
Germination and vigor of sweet corn seeds with seed soaking time
To improve seed germination of sweet corn (Zea mays var.saccharata),seeds of six cultivars (Nongtian 2,Nongtian 3,Tiandan 8,Tiandan 10,Jinyutian 1,Jinyutian 2) were soaked for 0,4,8,16,and 24 h.A germination experiment (3 replicates for 100 seeds each chosen randomly and completely randomized design with treatments of 0,4,8,16,and 24 h soaking) was conducted and vigor indices (electric conductivity and dehydrogenase activities) were analyzed (Electic conductivity test and TTC method used,respectively).Results showed that the most effective soaking time was 8 h.After 8 h soaking,germination for the six cultivars accelerated and germination rates were enhanced according to ANOVA analysis (P＜0.05).For instance,germination rate of "Jinyutian 1" seeds was improved by 109.3％ and its mean germination time was shortened by 18.6％.Moreover,in the case of Jinyutian 1,the electric conductivity decreased and dehydrogenase activities improved according to ANOVA analysis (P＜0.05).All the aboved results suggested that seed germination and vigor of sweet corn were significantly promoted after 8 h soaking.

seed physiologysweet cornseed soakingseed germinationelectric conductivitydehydrogenase activity

潘彬荣、任镜羽、赵光武

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温州科技职业学院农生系作物所,浙江温州325006

浙江农林大学农业与食品科学学院,浙江省农产品品质改良技术研究重点实验室,浙江临安311300

种子生理学 甜玉米 浸种处理 种子萌发 电导率 脱氢酶

浙江省重大科技专项农业项目浙江省重大科技专项农业项目浙江省自然科学基金资助项目国家自然科学基金资助项目

2012C12902-4-62012C12902-4-4LY13C13001131371712

2015

10.11833/j.issn.2095-0756.2015.01.007

浙江农林大学学报
浙江农林大学

浙江农林大学学报

CSTPCDCSCD北大核心
影响因子：0.929
ISSN：2095-0756
年,卷(期)：2015.32(1)
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