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首页> 外文会议>2011 International Conference on Remote Sensing, Environment and Transportation Engineering >Effect of environmental temperatures on flower morphology and fertility alternation of male sterile line 160S of Brassica napus
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Effect of environmental temperatures on flower morphology and fertility alternation of male sterile line 160S of Brassica napus

机译：环境温度对甘蓝型油菜雄性不育系160S花形和育性改变的影响

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Comparison on the flower morphologic and pollen fertility alteration of male sterile line 160S in Brassica napus under natural temperature conditions were conducted. The results showed that the temperature was the main factors to flower morphologic and pollen fertility alteration. Under male sterile conditions, the anthers of 160S were all smaller than the normal ones and the pollens were completely male sterile, the ratio of pollen stained with TTC solution were nearly 0 and the self-pollenated pod-setting ratio was only 1.2%. The anthers of 160S were all normal, and there were no difference with the anthers of those two normal lines under fertile condition. The percentage of fertile pollen stained with TTC solution and the self-pollenated pod-setting ratio were all above 80%. The percentage of pollen fertility and the self-pollenated pod-setting ratio of 160S decreased along with temperature rising, and the fertility transformation direction was fertile, part fertile and then complete sterile. The study showed that 160S showed complete male sterility above 25°C while it showed complete normal fertility below 18°C.
机译：比较了自然温度条件下甘蓝型油菜雄性不育系160S的花形和花粉育性变化。结果表明，温度是影响花形态和花粉育性改变的主要因素。在雄性不育条件下，160S的花药均小于正常花药，花粉完全是雄性不育的，用TTC溶液染色的花粉比例接近0，自花粉荚结实率仅为1.2％。 160S的花药均正常，在肥沃条件下与这两个正常品系的花药无差异。 TTC溶液染色的可育花粉百分比和自花粉荚结实率均在80％以上。随着温度的升高，花粉的受精率和160S自花粉结荚率均降低，其受精转化方向为肥沃，部分肥沃，然后完全不育。研究表明，160S在25°C以上显示出完全的雄性不育，而在18°C以下显示出完全的正常育性。

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