首页|微波辐射和激素浸种对滇青冈种子发芽及幼苗生长的影响

微波辐射和激素浸种对滇青冈种子发芽及幼苗生长的影响

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采用U12*(1210)均匀试验设计对滇青冈种子进行微波辐射与外源激素GA3、IBA和IAA浸种的试验,了解不同因素的水平组合及其水平对滇青冈(Cyclobalanopsis glaucoides)种子发芽与幼苗地径和苗高的影响.结果表明,微波辐射和外源激素的不同水平组合显著或极显著地影响种子发芽和幼苗生长(P发芽率=0.042<0.05、P地径=0.030<0.05和P苗高=8.41 E-05<0.01),其平均发芽率、地径和苗高分别为39.67%~62.67%、1.95~2.16 mm和11.84~15.85 cm.因素的水平间仅IAA的4个水平在90%的置信度条件下对苗高呈显著的差异影响(pD=0.054<0.1);IAA是影响滇青冈种子发芽和幼苗生长的关键因子;10 s的微波辐射、0.04 g/L的IAA和高浓度(≥1.0 g/L)的GA3有利于滇青冈种子发芽和幼苗生长.
Effects of Microwave Radiation and Hormone Presoaking Seeds on Germination and Seedling Growth of Cyclobalanopsis glaucoides
The U12* (1210) uniform experiment design was applied to trail effects of microwave radiation and GA3,IBA,IAA presoaking seeds on germination percent (GP),basal diameter (BD) and seedling height (SH) of Cyclobalanopsis glaucoides.The results showed that different level combinations (DLCs) of microwave radiation and exo-hormones significantly affected germination and seedling growth (PGP=0.042<0.05,PBD=0.030<0.05 and PSH-=8.41 E-05<0.01).The mean GPs,BDs and SHs of the DLCs were 39.67%-62.67%,1.95-2.16 mm and 11.84-15.85 cm.Among the factorial levels,only four levels of the IAA showed the significantly different effects on the SHs under 90% of confidence coefficient (p0 =0.054<0.1).The IAA was the primary factor of influencing the seed's GPs and young seedling growth (YSG) of Cyclobalanopsis glaucoides.The treated combination of the 10 s microwave radiation,0.04 g/L IAA and high concentrations (≥1.0 g/L) of the GA3 favored the seed's GPs and the YSG of Cyclobalanopsis glaucoides.

Cyclobalanopsis glaucoidesuniform experimentmicrowave radiationgermination percentbasal diametersseedling heights

鲍雪纤、郑书绿、李莲芳、王慷林、张薇、王文俊、王文静、于国栋

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西南林业大学,云南昆明650224

滇青冈 均匀试验 微波辐射 发芽率 地径 苗高

国家自然科学基金林业科技成果国家级推广计划

31170585[2010]48

2015

种子
贵州省种子管理站 贵州省种子学会 中国种子协会

种子

CSTPCD北大核心
影响因子:0.502
ISSN:1001-4705
年,卷(期):2015.34(7)
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