WEI Ji-guang,YU Hong,ZHANG Xiao-na,et al.Effect of Exogenous 5-aminolevulinic Acid on Photosynthetic Capacity,Yield and Fruit Quality of Vaccinium ashei Reade[J].Northern Horticulture,2014,38(16):9-12.
5-氨基乙酰丙酸对兔眼蓝莓光合性能及果实产量和品质的影响
- Title:
- Effect of Exogenous 5-aminolevulinic Acid on Photosynthetic Capacity,Yield and Fruit Quality of Vaccinium ashei Reade
- 文章编号:
- 1001-0009(2014)16-0009-04
- Keywords:
- 5- aminolevulinic acid; Vaccinium ashei Reade; photosynthesis; yield; fruit; size; quality; index
- 分类号:
- S663.9
- 文献标志码:
- A
- 摘要:
- 以12年生兔眼蓝莓品种‘园蓝’为试材，研究了花后喷施5氨基乙酰丙酸(ALA)对植株光合性能及果实产量和品质的影响。结果表明：喷施300 mg/L ALA处理对兔眼蓝莓光合能力和产量的促进作用最大，叶片叶绿素含量相对值、净光合速率、气孔导度、蒸腾速率分别比对照提高4.5%、19.8%、19.4%和19.5%，PSⅡ最大光化学效率(Fv/Fm)和PSⅡ的有效光量子产额［Y(Ⅱ)］分别比对照上升0.7%、10.9%，果实纵径、横径、单果重和单株产量分别比对照高3.0%、3.3%、8.3%和8.1%。适量外源ALA可在一定程度上提高兔眼蓝莓果实可溶性糖含量，降低果实酸度，果实维生素C含量因果实变大而降低，低浓度和高浓度ALA处理果实总酚和总黄酮含量较高。由此推测适量ALA通过增强兔眼蓝莓光合效能，提高果实大小，从而提高产量，并改善部分品质指标。
- Abstract:
- With 12-year old Vaccinium ashei Reade cultivar ‘Gardenblue’ as materials,the effect of growth regulator of 5-aminolevulinic acid (ALA) on photosynthetic capacity,berry size,yield and fruit quality were studied.The results showed that the most effective levels of ALA for promoting photosynthetic capacity and yield were 300 mg/L.Application of 300 mg/L ALA resulted in the increase of chlorophyll content index,net photosynthetic rate,stomatal conductance,transpiration rate by 4.5%，19.8%，19.4% and 19.5%,respectively compared with control.An increase of 0.7% in the maximal photochemical efficiency of PSⅡ(Fv/Fm) and 10.9% in the effective quantum yield of PSII ［Y(II)］ in comparison with control was registered with the treatment of 300 mg/L ALA.The increase in longitudinal diameter,fruit diameter,fruit weight and total yield per plant with 300 mg/L ALA was 3.0%，3.3%，8.3% and 8.1%,respectively compared with control.Appropriate exogenous ALA increased soluble sugar content,but decreased fruit titratable acid content.The decrease in fruit vitamin C content mainly caused by enlargement of berry.Low and high level ALA-treated plants accumulated higher fruit total phenolic and total flavonoids content.These results suggested that adequate exogenous ALA application improved yield of Vaccinium ashei Reade mainly through increasing photosynthetic capacity and berry size.Several quality parameters also improved by appropriate exogenous ALA application.
参考文献/References:
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备注/Memo
第一作者简介：韦继光（1978-），男，广西都安人，博士，助理研究员，现主要从事蓝浆果栽培生理等研究工作。E-mail:wjg728@126.com.