| 张咪咪，何丽娜，何觉民，张红梅，何 仪，周建伟.小麦与野燕麦杂交后代品系光合特性的研究[J].麦类作物学报,2012,32(5):945 |
| 小麦与野燕麦杂交后代品系光合特性的研究 |
| Study on the Photosynthetic Performance of the New Lines Developed from the Cross between Triticum aestivum and Avena fatua |
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| DOI：10.7606/j.issn.1009-1041.2012.05.025 |
| 中文关键词: 小麦 野燕麦 杂交后代 光合特性 |
| 英文关键词:Triticum aestivum Avena fatua The progeny of cross breeding Photosynthetic performance |
| 基金项目:广东省农业攻关项目（2009B020303009）；广东海洋大学自然科学基金项目。 |
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| 中文摘要: |
| 为了研究小麦与野燕麦杂交后代高产的原因，用LI 6400光合作用测定系统测定了小麦与野燕麦杂交后代及其亲本的开花期旗叶净光合速率(Pn)、气孔导度(Cd)、胞间CO2浓度(Ci)和蒸腾速率(Tr)， 并计算了水分利用效率，用方差分析和相关性分析方法对11个参试材料的光合特性进行了综合评价。结果表明，小麦与野燕麦杂交后代的净光合速率显著高于普通小麦和野燕麦；各品种（系）的气孔导度变化趋势与蒸腾速率变化趋势一致，气孔导度大的一般蒸腾速率也较高；光合速率与气孔导度和蒸腾速率显著相关，与产量正相关，但相关不显著；小麦与野燕麦杂交后代的光合能力高于亲本和普通小麦。 |
| 英文摘要: |
| The new lines developed from the progeny of cross between Triticum aestivum and Avena fatua were used as materials to study the variation of photosynthetic parameters of flag leaf at blooming stage by LI 6400 photosynthetic system and calculate the water use efficiency (WUE), and to evaluate the photosynthetic characteristics with analysis of variance and correlation analysis. The results showed that Pn of the hybrid offsprings developed from common wheat and Avena fatua were obviously higher than those of common wheat and Avenu fatua.The change trend of stomata conductance (Cd) was similar to that of transpiration rate (Tr). The correlations between Pn with Cond and Tr were significantly positive among different cultivars. A positive association was found between Pn of flag leaves and yield, but not significant. The capacity of photosynthesis of the hybrids was higher than that of parents and Triticum aestivum. |
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