|Table of Contents|

Effects of Different Combinations of CaCl2 Reagents on Low-temperature Germination of Summer Squash Seeds

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年15
Page:
40-45
Research Field:
Publishing date:

Info

Title:
Effects of Different Combinations of CaCl2 Reagents on Low-temperature Germination of Summer Squash Seeds
Author(s):
WANG Yanfang1; LI Fayuan1; LI Lingzhi1; SHI Guang′an2; LI Haiping1; DUAN Xujin1
(1.College of Horticulture，Shanxi Agricultural University,Jinzhong,Shanxi 030801;2.Yungang Grottoes Institute of Research,Datong,Shanxi 037007)
Keywords:
combination of CaCl2 reagents; summer squash seeds (Cucurbita pepo L.); low temperature; germination
PACS:
-
DOI:
10.11937/bfyy.20204868
Abstract:
‘Spring Jadeite’ summer squash (Cucurbita pepo L.) seeds were used as experimental materials,the seeds were soaked with CaCl2 solution, CaCl2 + Urea disuccinate tetrasodium (HIDS) solution, CaCl2 + Fulvic acid solution (FA) solution and deionized water (CK) to study the effects of different CaCl2 reagent combination on seed germination at low temperature,in order to provide reference for improving the cold resistance of summer squash.The results showed that compared with the control,the three treatments with CaCl2 could improve the germination ability of summer squash seeds under low temperature,which was CaCl2+FA>CaCl2+HIDS>CaCl2>CK.Compared with the control,the germination rate,germination potential,germination index and vigor index of summer squash seeds soaked in CaCl2+FA solution increased significantly by 2.48%,2.48%,1.15% and 14.71%,while the root length,fresh weight and dry weight increased by 15.12%,46.47% and 13.35%;soaking seeds in CaCl2+FA solution enhanced osmotic adjustment substances and antioxidant enzyme activity,and increased proline,soluble sugar,soluble protein contents,SOD,POD activities by 14.52%,180.00%,31.87%,1.52%,53.53%,respectively.The contents of superoxide anion radica and H2O2 decreased by 131.97% and 35.83% respectively.In conclusion,different combinations of CaCl2 reagents could reduce the damage of low temperature on seed germination,and the combination of CaCl2 and FA had the best effect。

References:

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Last Update: 2021-11-20