WANG Jian-li,SHEN Zhong-bao,PAN Duo-feng,et al.The Mutagenic Effect of Space Flight on SP2 Agronomic Traits of Festuca rubra[J].Northern Horticulture,2015,39(01):63-67.[doi:10.11937/bfyy.201501018]
航天搭载紫羊茅SP2代农艺性状诱变效应研究
- Title:
- The Mutagenic Effect of Space Flight on SP2 Agronomic Traits of Festuca rubra
- Keywords:
- Keywords:Festuca rubra ; space flight; agronomic traits; SP2
- 文献标志码:
- A
- 摘要:
- 摘 要：以紫羊茅品种“普通”和“本杰明”为试材，采用航天搭载技术方法，研究航天诱变技术对2份紫羊茅品种SP2代的一些农艺性状的影响。结果表明：2份紫羊茅的株高、草层高度、叶片长度、叶片宽度、穗长、主穗小穗数及种子数/小穗等农艺性状与对照比较均出现了双向突变，且变异系数均大于各自地面对照。2个紫羊茅SP2代株高、草层高度、叶长和穗长等性状均有正向增加的趋势，叶片宽度突变偏向于叶片变窄趋势；紫羊茅“普通”SP2代主穗小穗数突变偏向于小穗数增多，每小穗种子数突变偏向于种子数减少，而紫羊茅“本杰明”SP2代主穗小穗数突变偏向于小穗数减少，每小穗种子数突变偏向于种子数增多。从后代变异规律可以看出，航天搭载可作为紫羊茅育种的一种有效手段。
- Abstract:
- Abstract:Taking Festuca rubra varieties of ‘Red festuca’ and ‘Benjamin’ from space flight as materials,the mutagenic effect of space flight on the two varieties of Festuca rubra in SP2 were studied.The results showed that the variability coefficient of plant height,grass layer height,length of leaf,width of leaf,ear length,number of spikelets and seeds number per spikelet in the two materials were higher than those of the earth control,and these traits had produced two-way mutations.Some traits of plant height,grass layer height,length of leaf and ear length in the two materials had a positive tendency,the width of leaf tended to narrowing trend；the number of spikelets of ‘Red festuca’ tended to increasing trend and seeds number per spikelet tended to decreasing trend,the number of spikelets of ‘Benjamin’ tended to decreasing trend and seeds number per spikelet tended to increasing trend.The variability changes of SP2 offspring showed that space treatment provide new germplasm for Festuca rubra breeding effectively.
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备注/Memo
第一作者简介：王建丽（1977-），女，内蒙古赤峰人，博士研究生，助理研究员，现主要从事牧草育种及草坪草育种等研究工作。 E-mail:wangjianlivip@126.com.基金项目：黑龙江省农业科技创新工程院级科研资助项目（2012ZD002）。