Study on Diurnal Variations of Photosynthetic Characteristics of a New Spur and Stripe Red Fuji Apple.Study on Diurnal Variations of Photosynthetic Characteristics of a New Spur and Stripe ‘Red Fuji’ Apple[J].Northern Horticulture,2016,40(06):24-27.[doi:10.11937/bfyy.201606006]
短枝条红型“红富士”苹果芽变光合特性的日变化研究
- Title:
- Study on Diurnal Variations of Photosynthetic Characteristics of a New Spur and Stripe ‘Red Fuji’ Apple
- 文献标志码:
- A
- 摘要:
- 以“长富2号”、“新红1号”与“红富士”芽变优系为试材，利用LI-6400便携式光合测定系统测定了3个供试材料光合各指标的日变化。结果表明：3份苹果材料的净光合速率日变化均为典型的“双峰型”曲线，表现出明显的“午休”现象，“新红1号”与“红富士”芽变优系的净光合速率日平均值分别比“长富2号”高26.37%和27.34%，且“新红1号”与“红富士”芽变优系各时段的净光合速率大于“长富2号”；蒸腾速率日变化均呈“单峰型”曲线，“长富2号”和“新红1号”的峰值出现在14:00，“红富士”芽变优系的峰值出现在16:00；水分利用效率（WUE）日变化曲线均呈“单谷型”，短枝型品种总体较长枝型品种高，说明短枝型品种抗旱能力强于长枝型品种。与长枝型苹果相比，短枝型苹果具有光合生产能力高的潜力，更有利于光合产物的积累，为选育优良的条红短枝型苹果新品种提供理论依据。
- Abstract:
- n this experiment，‘Red Fuji’ bud mutation，‘Nagafu No.2’ and ‘Xinhong No.1’ were used as test materials.By using Li-6400 portable photosynthesis to determine the diurnal variations of three test apple materials.The results showed that the diurnal variation of net photosynthetic rates of the three apple materials were typical ‘double-apex curve’，and the phenomenon of ‘the midday rest’ were obvious.Compared with ‘Nagafu No.2’，‘Xinhong No.1’ and ‘bud sports’ of the net photosynthetic rate of daily average value were high 26.37% and 27.34% respectively.Their net photosynthetic rate in each period was greater than ‘Nagafu No.2’.Daily variation of transpiration rate were ‘single-valley curve’，‘Nagafu No.2’ and ‘Xinhong No.1’ peak appeared at 14:00 and ‘bud mutation’ peak appeared at 16:00.Those of the water use efficiency (WUE) presented ‘single-valley curve’，‘Xinhong No.1’ and ‘bud sports’ of WUE of overall level was longer than ‘Nagafu No.2’，showing that the spur type varieties drought-resistant ability stronger than the long branch type varieties.Compared with the long branch type varieties，spur type varieties had the potential to produce high photosynthetic capacity，and was more conducive to the accumulation of photosynthetic products，which provided theoretical basis for breeding of spur and red stripe type apple.
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备注/Memo
第一作者简介：张俊苗（1989-），女，硕士研究生，研究方向为果树种质与资源。E-mail：839141787@qq.com.责任作者：李文胜（1968-），男，硕士，副教授，硕士生导师，研究方向为果树种质与资源。E-mail：252500755@qq.com.基金项目：国家林业公益性行业科研专项资助项目（201304701-1）； 新疆自治区特色林果发展专项林木遗传育种资助项目(2014年)。