3种野生葱属植物花粉活力和柱头可授性研究  

Study on pollen viability and stigma receptivity of three species of Allium

作　　者：赵金花[1] 李青丰[1] 那仁图雅[1] 斯琴[1] 

机构地区：[1]内蒙古农业大学生态环境学院,内蒙古呼和浩特010019

出　　处：《草业科学》2010年第4期93-96,共4页Pratacultural Science

基　　金：西部地区特色植物种质资源数据平台项目(505016)

摘　　要：采用TTC法、孢粉染色法及联苯胺一过氧化氢法，从花粉活力、花粉可育性及柱头可授性方面研究了蒙古韭Allium mongolicum、碱韭A．polyrhizum和细叶韭A．tenuissimum 3种野生葱属植物的传粉生物学特征。结果表明：3种野生葱属植物的花粉活力和可育率均较高，分别为蒙古韭73．40％±2．94％，79．44％±2．83％；碱韭71．23％±4．39％，84．32％±1．63％；细叶韭80．62％±4．11％，70．93％±4．86％。三者花粉活力下降快，花粉寿命约为8h，最佳传粉期为开花后3～4h。三者的柱头均具较高的可授性，可授性持续5d左右，最佳授粉期为2d左右。TTC （2,3,5-triphenyl tetrazolium chloride） method, pollen staining method and Benzldme H2O2 method were used to study the pollination characteristics of 3 wild species （Allium mongolicum, A. polyrhizum and A. tenuissimum） in terms of pollen viability, pollen fertility and stigma receptivity. The results showed that all the 3 plants had high pollen viability and pollen fertility. Pollen viabilities were 73. 40%±2. 94%, 71. 23%± 4. 39% and 80. 62% ± 4. 11% for A. mongolicum, A. polyrhizum and A. tenuissimum, respectively, and the pollen fertilities were 79. 44%±2. 83%, 84.32%±1.63 and 70.93%±4.86% respectively. The pollen viabilities decreased quickly and pollen longevities were about 8 hours for 3 plants. Optimal pollination time was 3 to 4 hours after flowering. The stigma receptivity of 3 plants was around 5 days. Optimal rpollination period lasted around 2 days.

关 键 词：蒙古韭 碱韭 细叶韭 花粉活力 花粉可育性 柱头可授性 

分 类 号：Q944.42[生物学—植物学]