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Cold Tolerance Appraisal on Seed of 34 Cherry Tomato Germplasm(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年13期
Page:
24-27
Research Field:
Publishing date:

Info

Title:
Cold Tolerance Appraisal on Seed of 34 Cherry Tomato Germplasm
Author(s):
GUAN Zhi-hua; WANG Zhong-hong
Agricultural and Animal Husbandry College，Tibet University，Linzhi，Tibet 860000
Keywords:
cherry tomato; germplasm; low temperature stress; appraisal
PACS:
S 641.2
DOI:
-
Abstract:
Taking 34 copies of cherry tomato seeds as materials,the effect of (15±1)℃ low temperature stress on germinating seeds continued growth and development were studied.The results showed that，in the continuous low temperature stress，germination index of materials 11-180 and 11-664 were 33 and 32 respectively，the damage degree of cell membrane was low(relative conductivity were 34.2% and 38.1%)，radicle elongation could be sustained，respectively，after 22 days at low temperature stress，radicle elongation were 31.4 mm and 27.6 mm，it showed good adaptability to low temperature stress，could be used directly as excellent low temperature resistance breeding parent materials；various other materials were poor adaptability to low temperature，not suitable for breeding as parent materials.

References:

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Last Update: 2014-08-01