Research on Physiological Characteristic of Three Species of Cerasus to Low Temperature Stress

doi:10.11924/j.issn.1000-6850.casb2022-0644

Abstract

Abstract:

To study the effects of low temperature stress on Cerasus plants, such as the Tianjin wild Cerasus serrulata and sweet cherry rootstocks, one-year-old branches of three species of Cerasus were used as materials to study the changes of relative conductivity, osmotic adjustment substances and reactive oxygen under different low temperature stresses. The cold resistance of three species of Cerasus was comprehensively evaluated by the subordinate function method. The results showed that with the decrease of treatment temperature, the relative conductivity of branches of three species of Cerasus increased gradually. The contents of soluble sugar and soluble protein and the activities of antioxidant enzymes of three species of Cerasus increased first and then decreased. The contents of proline and MDA increased gradually with the decrease of temperature. Through the comprehensive analysis of subordinate function, the cold resistance order of three species of Cerasus was ‘Mahaleb’ > wild Cerasus serrulata > ‘Gisela 6’. It was found that the three species of Cerasus adapted to the low temperature environment mainly by increasing the synthesis of osmotic adjustment substances and enhancing the activity of antioxidant enzymes, which provided a basic reference for the screening of cold resistant of sweet cherry rootstocks and the utilization of cold resistant germplasm resources of Cerasus species.

Key words: species of Cerasus, wild Cerasus serrulata, sweet cherry rootstock, low temperature stress, physiological character

LI Huanyong, LIAO Fangzhou, LAN Pu, YANG Lifang. Research on Physiological Characteristic of Three Species of Cerasus to Low Temperature Stress[J]. Chinese Agricultural Science Bulletin, 2023, 39(22): 77-82.

Figures/Tables 8

References 25

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樱属植物	相对电导率	可溶性糖	可溶性蛋白	脯氨酸	丙二醛	SOD	POD	平均值	排序
野生山樱	0.6962	0.2007	0.6786	0.0748	0.7683	0.5742	0.1125	0.4436	2
吉塞拉6号	0.6970	0.4178	0.1827	0.7140	0.3249	0.5096	0.0625	0.4155	3
马哈利	0.4989	0.4438	0.8211	0.2046	0.5726	0.8049	0.5803	0.5609	1

樱属植物	相对电导率	可溶性糖	可溶性蛋白	脯氨酸	丙二醛	SOD	POD	平均值	排序
野生山樱	0.6962	0.2007	0.6786	0.0748	0.7683	0.5742	0.1125	0.4436	2
吉塞拉6号	0.6970	0.4178	0.1827	0.7140	0.3249	0.5096	0.0625	0.4155	3
马哈利	0.4989	0.4438	0.8211	0.2046	0.5726	0.8049	0.5803	0.5609	1