Effects of calcium treatments on physiological-biochemical characteristics and fruit quality of grape （Vitis vinifera cv. ＇Centennial seedless＇） | 喷施钙素对‘森田尼无核＇葡萄生理生化特性和果实品质的影响
2009
Su Xuede, Gansu Agricultural University, Lanzhou(China), College of Agronomy | Yang Jiangshan, Gansu Agricultural University, Lanzhou(China), College of Agronomy
chinois. 通过不同时期、不同浓度的Ca（NO3）2・4H2O处理，研究了喷施钙素对‘森田尼无核’葡萄生理生化特性和果实品质的影响．结果表明：在果实采收前1个月和采收前10d分别喷施不同浓度水平的Ca（NO3）2・4H2O，‘森田尼无核’葡萄在中度供钙水平（8g・L. 1和12g・L. 1）下叶片叶绿素总量明显高于清水（对照）、低钙（4g・L. 1和8g・L. 1）、高钙（12g・L. 1和16g・L. 1）水平；8g・L. 1和12g・L. 1供钙水平下，叶片叶绿素总量比对照增高了14．2％和27．7％，而过氧化物酶（POD）、超氧化物歧化酶（SOD）、过氧化氢酶（GAT）的活性、丙二醛（MDA）含量及相对电导率比对照分别降低了85．0％、53．2％；46．9％、50．2％；30．9％、41．2％；26．3％、42．3％和13．4％、32．8％；同时发现，中度供钙可显著提高VC、可滴定酸含量及果实硬度，降低可溶性固形物含量．[著者文摘]
Afficher plus [+] Moins [-]anglais. The effects of Ca（NO3）2 ・ 4H2O at different concentration level and treatments time on physiological-biochemical characteristics and fruits quality of grape （Vitis vinifera cv. Centennial seedless） were studied in this paper. The results showed that calcium treatment atmoderate （8 g・L. 1and 12 g・L. 1） before one month and ten days of harvest had a higher contents of chlorophyll in leaves than that atlow （4 g・L. 1 and 8 g・L. 1）, high （12 g・L. 1 and 16 g・L. 1） and the control. The treatment at 8 g・L. 1 ~12 g・L. 1increased by 14. 2 % and 27. 7% of chlorophyll content~ however, the activity of peroxidase （POD）, superoxide dismutase （SOD）, catalase （CAT）, the contents of MDA and the relative electric conductance in leaves were lower by 85.0%,53.2 %-46.9 %,50. 2 %;30. 9 %,41.2 %~26. 3%,42. 3% and 13.4%, 32. 8% than the control. The moderate calcium treatment markedly increased fruit hardness,and the content of VC and titratable acids; however, reduced SSC.
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