| 枸杞新品系NQ-2开花生物学研究 |
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| 引用本文： | 王娅丽,王锦秀,常红宇,倪细炉,田英,秦彬彬.枸杞新品系NQ-2开花生物学研究[J].植物研究,2011(3):330-335. |
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| 作者姓名： | 王娅丽 王锦秀 常红宇 倪细炉 田英 秦彬彬 |
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| 作者单位： | 宁夏林业研究所股份有限公司;西北特色经济林栽培与利用国家地方联合工程研究中心;种苗生物工程国家重点实验室; |
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| 基金项目： | 宁夏自然科学基金项目(NZ09192); 西北特色经济林栽培与利用国家地方联合工程研究中心资助项目(2010-EFC-2) |
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| 摘 要： | 为探讨枸杞新品系NQ-2纯系种植结实率低的原因,采用TTC法、联苯胺—过氧化氢法、花粉—胚珠比、杂交指数和套袋试验等方法,对NQ-2花粉活力、柱头可授性及繁育系统等进行了研究。结果表明:NQ-2单花花期为3~4 d,花后8 h散粉结束,开花当天花粉活力最高,花粉寿命可持续9 d以上;开花前一天柱头已具可授性,开花第1天柱头可授性最强,开花第3天柱头基本失去可授性;枸杞新品系NQ-2平均花粉-胚珠比8615,OC I=4,结合人工授粉实验结果确定其繁育系统为专性异交。自交不亲和是导致NQ-2纯系种植落花落果结实率低的主要原因。
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| 关 键 词： | 枸杞新品系NQ-2 花粉活力 柱头可授性 杂交指数 花粉—胚珠比 授粉实验 繁育系统 |
Flowering Biology of Lycium barbarum L. NQ-2 |
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| WANG Ya-Li, WANG Jin-Xiu, CHANG Hong-Yu, NI Xi-Lu, TIAN Ying, QIN Bin-Bin.Flowering Biology of Lycium barbarum L. NQ-2[J].Bulletin of Botanical Research,2011(3):330-335. |
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| Authors: | WANG Ya-Li WANG Jin-Xiu CHANG Hong-Yu NI Xi-Lu TIAN Ying QIN Bin-Bin |
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| Institution: | WANG Ya-Li1,2 WANG Jin-Xiu1,2 CHANG Hong-Yu1,2 NI Xi-Lu1,3 TIAN Ying1,3 QIN Bin-Bin1(1.Ningxia Forestry Institute,Yinchuan 750004,2.Combined National/provincial Center of Engineering and Research for Cultivation and Utilization of Northwestern Special Economical Forestry,3.State Key Laboratory of Seeding Bioengineering,Yinchuan 750004) |
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| Abstract: | To explore the factors that cause the low fruit setting rate of pure line planting of Lycium barbarum NQ-2,the flowering characteristic,pollen viability,stigma receptivity and breeding system of L.barbarum NQ-2 were studied by means of observation on pollen viability,stigma receptivity,pollen-ovule ration,out-crossing index,emasculation,bagging and artificial pollination using Ningqi 1 as control.The results showed that:(1)The florescence of individual last 3-4 days,the pollen viability was high during the ... |
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| Keywords: | Lycium barbarum NQ-2 pollen viability stigma receptivity out-crossing index pollen-ovule ratio artificial pollination breeding system |
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