摘要
以4年生＂巨峰＂葡萄为试材,通过叶面喷施不同浓度的乙酰丙酸,探究了乙酰丙酸对＂巨峰＂葡萄叶绿素、产量和品质的影响。结果表明：喷施乙酰丙酸能相对提高葡萄叶片叶绿素含量,尤其是稀释600倍的处理效果最明显,在幼果期喷施第4周后所有喷施乙酰丙酸处理叶绿素含量相对对照增加效果显著;喷施乙酰丙酸葡萄产量提高了5.1%～27.9%,喷施稀释600倍的增产效果最佳;喷施不同浓度乙酰丙酸使葡萄单果粒重提高了0.38～0.83g;喷施乙酰丙酸增加了葡萄果实可溶性糖含量、糖/酸、花青素含量,降低了可滴定酸含量,显著增加了葡萄皮的总酚物质、类黄酮、花青素含量,利于葡萄色香味的增加,不影响果实维生素C和单宁酸含量,且以喷施稀释600倍的效果最佳。葡萄生产上,可以喷施稀释600倍的乙酰丙酸,以增产和改善果实品质。
4-year-old‘Kyoho＇grape was used as materials,the effect of levulinic acid on‘Kyoho＇grape chlorophyll,yield and quality were studied through foliar spraying different concentrations of levulinic acid.The results showed that spraying levulinic acid could improve the chlorophyll content of grape leaf,especially spraying the diluted 600 times had the best obvious effect,and the effect of all treated treatments were significant after the fourth week.Spraying levulinic acid had improved the grape yield,increased 5.1%-27.9%,spraying the diluted 600 times levulinic acid was the most effective.The single fruit weight increased by 0.38-0.83 g with spraying different concentration of levulinic acid.Spraying levulinic acid increased the grape fruit soluble sugar content,sugar acid ratio,anthocyanin content,reduced the titratable acid content,significantly increased the grape skins＇ total phenolic substancess,flavonoid and anthocyanin content,it was conductive to the increase of grape flavor,did not affect the fruit vitamin C and tannic acid content,spraying diluted 600 times at young fruit period was one of the good measures to increase yield and improve fruit quality.
出处
《北方园艺》
CAS
北大核心
2015年第24期5-8,共4页
Northern Horticulture
基金
国际植物营养研究所(IPNI)资助项目
关键词
葡萄
乙酰丙酸
叶绿素
产量
品质
grape
levulinic acid
chlorophyll
yield
quality
