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Physiological Response to Cold Stress and Identification of Its Cold Tolerance in Different Pigeonpea Seedling Stage
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Jun TANG1, 2, Wenqiang WANG1, Xipeng DING1, Xiangli MA2, Yufen BI2, Fenggen GUO2, *
Chinese Journal of Tropical Crops | 2024, 45(8) : 1633 - 1640
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Chinese Journal of Tropical Crops | 2024, 45(8): 1633-1640
• Plant Cultivation, Physiology & Biochemistry •
Physiological Response to Cold Stress and Identification of Its Cold Tolerance in Different Pigeonpea Seedling Stage
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Jun TANG1, 2, Wenqiang WANG1, Xipeng DING1, Xiangli MA2, Yufen BI2, Fenggen GUO2, *
Affiliations
  • 1.Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture and Rural Affairs, Haikou, Hainan 571101, China
  • 2.College of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China
Published: 2024-08-25 doi: 10.3969/j.issn.1000-2561.2024.08.012
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Pigeonpea is an important food and forage crop in the tropics. In order to dissect the physiological characteristics of pigeonpea under cold stress and its cold tolerance, eight seedlings of pigeonpea were tested and analyzed by 8 physiological indexes under 4 ℃ stress, and cold tolerance of pigeonpea were evaluated by subordinate function value method in this study. The results showed that with the prolongation explored to cold stress, REC, SS, MDA and Pro increased respectively, SOD and POD increased firstly and then decreased, and Chl showed a general trend of decline, and the variation of CAT activity was significant difference only in P2 among the 8 accessions. The cold tolerance of the 8 accessions was in the order: Miandian>Danzhou>170306001>060302216>ICPL7086>Nan 02137>Guangxi>Qiongzhong. The content of Chl, SOD and POD activity were significantly correlated with cold tolerance of pigeonpea, which could be the reliable physiological indexes to evaluate the cold tolerance of pigeonpea.

Cajanus cajan  /  cold stress  /  physiological indexes  /  cold tolerance
Jun TANG, Wenqiang WANG, Xipeng DING, Xiangli MA, Yufen BI, Fenggen GUO. Physiological Response to Cold Stress and Identification of Its Cold Tolerance in Different Pigeonpea Seedling Stage[J]. Chinese Journal of Tropical Crops, 2024 , 45 (8) : 1633 -1640 . DOI: 10.3969/j.issn.1000-2561.2024.08.012
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doi: 10.3969/j.issn.1000-2561.2024.08.012
  • Receive Date：2023-09-27
  • Online Date：2026-06-23
  • Published：2024-08-25
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  • Received：2023-09-27
  • Revised：2024-02-04
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Affiliations
    1.Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture and Rural Affairs, Haikou, Hainan 571101, China
    2.College of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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