针对妮娜女皇葡萄在苏南地区存在成熟期转色难、品质差的问题,于果实转色期对4年生植株进行不同处理,即处理T1-喷施叶面肥0.3%磷酸二氢钾4次,间隔10 d 1次;T2-喷施叶面肥+主干环割2道,间距3 mm;T3-喷施叶面肥+树下铺设反光膜;T4-喷施叶...针对妮娜女皇葡萄在苏南地区存在成熟期转色难、品质差的问题,于果实转色期对4年生植株进行不同处理,即处理T1-喷施叶面肥0.3%磷酸二氢钾4次,间隔10 d 1次;T2-喷施叶面肥+主干环割2道,间距3 mm;T3-喷施叶面肥+树下铺设反光膜;T4-喷施叶面肥+主干环割+树下铺设反光膜,研究对提高果实综合品质的效果。结果表明,与对照植株相比,处理组合均能促进果实着色;对提高葡萄综合品质指标而言,以T2处理组合喷施叶面肥+环割和T4处理组合喷施叶面肥+环割+铺设反光膜对于增大果形指数、单粒重,提升果实的可溶性固形物含量、促进果实着色效果较好。展开更多
Appearance quality is the main element forming the fruit quality. Both bagging and reflective film application can improve appearance comprehensive quality. In order to determine the effects of bagging and reflective ...Appearance quality is the main element forming the fruit quality. Both bagging and reflective film application can improve appearance comprehensive quality. In order to determine the effects of bagging and reflective film on peach fruit coloration, this study explored the effects of applying reflective film before harvest on fruit appearance quality of peach(Prunus persica), and discussed the influencing mechanism on fruit coloration. Yellow outside and black inside double-layer bags were removed from fruit twelve days d before harvest. Peel color, pigment content, enzyme activity as well as the gene expression related to fruit coloration of a well-colored and late-ripening peach cultivar ‘Xiahui 8' with different treatments(non-bagging with non-reflective film mulching, debagging with non-reflective film mulching, debagging with reflective film mulching) were researched. The results showed that both debagging with non-reflective film mulching and debagging with reflective film mulching could significantly improve red and green color difference value(a*), a*/b*(b* is yellow and blue color difference value), chroma(C), anthocyanin(Ant) content and reduce hue angle(h), while debagging with reflective film mulching had higher Ant content than debagging with non-reflective film mulching(P < 0.05). The two treatments up-regulated the transcript level of anthocyanin biosynthetic related genes(UFGT, CHS) at the beginning of the experiment, however, the expression of DFR, LDOX and F3 H were enhanced along with the testing process. A downward trend on peel phenylalanine ammonia lyase(PAL) activity of non-bagging with non-reflective film mulching was observed during the experiment, however, the peel PAL activity of the other two treatments first increased and then decreased. What's more, peel PAL activity of debagging with reflective film mulching was higher than debagging with non-reflective film mulching. These results suggested that Ant synthesis in the peel was the result of cooperation among several genes, and debag展开更多
文摘针对妮娜女皇葡萄在苏南地区存在成熟期转色难、品质差的问题,于果实转色期对4年生植株进行不同处理,即处理T1-喷施叶面肥0.3%磷酸二氢钾4次,间隔10 d 1次;T2-喷施叶面肥+主干环割2道,间距3 mm;T3-喷施叶面肥+树下铺设反光膜;T4-喷施叶面肥+主干环割+树下铺设反光膜,研究对提高果实综合品质的效果。结果表明,与对照植株相比,处理组合均能促进果实着色;对提高葡萄综合品质指标而言,以T2处理组合喷施叶面肥+环割和T4处理组合喷施叶面肥+环割+铺设反光膜对于增大果形指数、单粒重,提升果实的可溶性固形物含量、促进果实着色效果较好。
基金supported by China Agriculture Research System(CARS-31)Jiangsu Agriculture Science and Technology Innovation Fund[CX(14)2015]and[ZX(15)4009]
文摘Appearance quality is the main element forming the fruit quality. Both bagging and reflective film application can improve appearance comprehensive quality. In order to determine the effects of bagging and reflective film on peach fruit coloration, this study explored the effects of applying reflective film before harvest on fruit appearance quality of peach(Prunus persica), and discussed the influencing mechanism on fruit coloration. Yellow outside and black inside double-layer bags were removed from fruit twelve days d before harvest. Peel color, pigment content, enzyme activity as well as the gene expression related to fruit coloration of a well-colored and late-ripening peach cultivar ‘Xiahui 8' with different treatments(non-bagging with non-reflective film mulching, debagging with non-reflective film mulching, debagging with reflective film mulching) were researched. The results showed that both debagging with non-reflective film mulching and debagging with reflective film mulching could significantly improve red and green color difference value(a*), a*/b*(b* is yellow and blue color difference value), chroma(C), anthocyanin(Ant) content and reduce hue angle(h), while debagging with reflective film mulching had higher Ant content than debagging with non-reflective film mulching(P < 0.05). The two treatments up-regulated the transcript level of anthocyanin biosynthetic related genes(UFGT, CHS) at the beginning of the experiment, however, the expression of DFR, LDOX and F3 H were enhanced along with the testing process. A downward trend on peel phenylalanine ammonia lyase(PAL) activity of non-bagging with non-reflective film mulching was observed during the experiment, however, the peel PAL activity of the other two treatments first increased and then decreased. What's more, peel PAL activity of debagging with reflective film mulching was higher than debagging with non-reflective film mulching. These results suggested that Ant synthesis in the peel was the result of cooperation among several genes, and debag
