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Effect of Exgenous CaCl2 on the Cold Resistance and Blossom and Yield of Tomato Under Cold Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年11期
Page:
10-14
Research Field:
Publishing date:

Info

Title:
Effect of Exgenous CaCl2 on the Cold Resistance and Blossom and Yield of Tomato Under Cold Stress
Author(s):
TANG Kuan-qiang1; LIU Shou-wei1; WU Feng-zhi1; ZHAO Quan2
1.College of Horticulture,Northeast Agricultural University,Harbin,Heilongjiang 150030；
2.Heilongjiang School of Agricultural Broadcasting and TV,Harbin,Heilongjiang 150090
Keywords:
calcium; tomato; cold stress; cold resistance; yield
PACS:
S 641.2
DOI:
-
Abstract:
With ‘Jinpeng No.1’ tomato with six true leaves as materials,the effect of exogenous CaCl2 which concentration was 1 400 mg/L on the relative electric conductivity,content of MDA,flowering stage,pollen vitality,fruit setting rate,single fruit weight and single panicle yield of tomato under cold stress were studied.The results showed that the exogenous calcium played an important role in blossom and yield of tomato under cold stress.Compared with the low temperature control,the relative electric conductivity and MDA content of the two groups which treated with spraying CaCl2 were significantly reduced (P<0.05).The flowering stage in the first inflorescence of the two groups treated with spraying CaCl2 was 2 days earlier than the low temperature control.And the pollen vitality in the first inflorescence of the group treated with spraying CaCl2 before the low temperature treatment was significantly higher than the low temperature control(P<0.05).Compared with the low temperature control,the fruit setting rate and the tomato yield in the first inflorescence of the two groups which treated with spraying CaCl2significantly increased (P<0.05).

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Last Update: 2014-08-16