GA_3和CPPU对阳光玫瑰葡萄果实品质的影响

The effects of GA_3 and CPPU on fruit quality of Shine Mascut

以阳光玫瑰葡萄为试验材料,花期用25 mg/L的GA_3浸蘸花穗,于花后两周,用25 mg/L的GA_3分别和0 mg/L、5 mg/L、10 mg/L、15 mg/L的CPPU组合再次浸蘸果穗,以清水处理作为对照(CK),探究不同浓度的GA_3和CPPU对其果实品质及果皮着色程度的影响。结果表明,与CK相比,25 mg/L的GA_3分别和不同浓度CPPU处理均显著增大了果实的纵横径、果形指数和单果重,并能显著降低可溶性固形物和可滴定酸含量,然而,着色相对缓慢,果实成熟期随处理浓度加大依次推迟。从GA_3和CPPU处理阳光玫瑰葡萄后的综合性状来看,花期用25 mg/L GA_3,花后两周用25 mg/L GA_3和5 mg/L CPPU组合处理效果最好。

In this paper, Shine Mascut was used as test material. The grape inflorescences were treated with 25 mg/L GA_3 at flourishing flowering stage in first, and then treated with 25 mg/L GA_3 combined with 0 mg/L, 5 mg/L, 10 mg/L and 15 mg/L CPPU respectively on two weeks after anthesis. The water as the control(CK), the effects of GA_3 and CPPU on fruit quality and fruit coloring of Shining Mascut were investigated. The results showed that the fruit length and latitude, fruit shape index and fruit weight were significantly increased, moreover, the content of titratable acid and soluble solids were decreased significantly by the treatments with GA_3 and CPPU compared with the control. However, fruit coloring and ripening was delayed by the treatments with GA_3 and CPPU, what's more, the fruit maturing stage was postponed later as the increased of CPPU concentration. By the comprehensive comparison of grape fruit characters, the treatment of 25 mg/L GA_3 at flourishing flowering stage and 25 mg/L GA_3 combined with 5 mg/L CPPU on two weeks after anthesis was recommended.