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Annual Variations of the Rubber Qualities of Five Rubber Tree Clones Including Reyan 73397 Planted in Hainan, China
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Huaide QIN1, 2, Anyang ZHANG3, Zhiyi NIE1, 2, Guijuan KANG1, 2, Mingming WEI1, 2, Rizhong ZENG1, 2, Wei LUO1, 2, *, Ruifang ZHAN4, *
Chinese Journal of Tropical Crops | 2024, 45(6) : 1226 - 1234
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Chinese Journal of Tropical Crops | 2024, 45(6): 1226-1234
• Post-harvest Treatment & Quality Safety •
Annual Variations of the Rubber Qualities of Five Rubber Tree Clones Including Reyan 73397 Planted in Hainan, China
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Huaide QIN1, 2, Anyang ZHANG3, Zhiyi NIE1, 2, Guijuan KANG1, 2, Mingming WEI1, 2, Rizhong ZENG1, 2, Wei LUO1, 2, *, Ruifang ZHAN4, *
Affiliations
  • 1.Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory for Rubber Tree Biology and Genetic resources, Ministry Agriculture and Rural Affairs of China, Haikou, Hainan 571101, China
  • 2.Hanan Institute for Natural Rubber and Tropical Forests / Hainan Provincial Key Lab of Advanced Natural Rubber Engineering, Haikou, Hainan 571101, China
  • 3.College of Life Science, Shenyang Normal University, Shengyang, Liaoning, 110034, China
  • 4.The Fourth Military Representative Office Stationed in Shenyang, Shengyang, Liaoning, 110022, China
Published: 2024-06-25 doi: 10.3969/j.issn.1000-2561.2024.06.014
Outline
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The quality and performance of natural rubber (NR) are closely related to Hevea brasiliensis (rubber tree) varieties, tapping systems, seasonal variation and phenology etc. In order to uncover the annual change rules from April to December of NR qualities among different rubber tree varieties, we investigated the NR qualities from five clones including PR 107, RRIM 600, Reyan 917, Reyan 73397 and Reyan 879 cultivated in Danzhon of Hainan, China, and analysed the vulcanization characteristics and the mechanical properties of the vulcanized NR prepared from the latex harvested in May. The results showed that the mooney viscosity, protein percentage, volatile percentage, Wallace plasticity (P0) and plasticity retention index (PRI) presented a downward or upward trend in an annual tapping cycle from April to December, which indicates that the NR quality parameters are affected by both genotypes and environmental factors such as weather and sunshine etc. The protein percentage in NR from the latex of the four rubber tree clones was more than 3.0% in December. The cure characteristics of NR from Reyan 917 were totally different from those of the other four rubber trees. Under the same tapping system of S/2 d/3, the tensile strength and the elongation at break of the vulcanized rubber from Reyan 879 was the smallest compared with the other four clones. The results would contribute to instructing the new variety breeding and rubber production on the one hand, and to providing scientific supports for high-performance NR manufacturing on the other hand.

Hevea brasiliensis  /  rubber quality and performance  /  one-year tapping period  /  Hainan island
Huaide QIN, Anyang ZHANG, Zhiyi NIE, Guijuan KANG, Mingming WEI, Rizhong ZENG, Wei LUO, Ruifang ZHAN. Annual Variations of the Rubber Qualities of Five Rubber Tree Clones Including Reyan 73397 Planted in Hainan, China[J]. Chinese Journal of Tropical Crops, 2024 , 45 (6) : 1226 -1234 . DOI: 10.3969/j.issn.1000-2561.2024.06.014
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Article Info
doi: 10.3969/j.issn.1000-2561.2024.06.014
  • Receive Date：2023-07-05
  • Online Date：2026-06-24
  • Published：2024-06-25
Article Data
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History
  • Received：2023-07-05
  • Revised：2023-09-01
Funding
Affiliations
    1.Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory for Rubber Tree Biology and Genetic resources, Ministry Agriculture and Rural Affairs of China, Haikou, Hainan 571101, China
    2.Hanan Institute for Natural Rubber and Tropical Forests / Hainan Provincial Key Lab of Advanced Natural Rubber Engineering, Haikou, Hainan 571101, China
    3.College of Life Science, Shenyang Normal University, Shengyang, Liaoning, 110034, China
    4.The Fourth Military Representative Office Stationed in Shenyang, Shengyang, Liaoning, 110022, 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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