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Screening of New Sugarcane Varieties with High Light Efficiency and Photosynthetic Potential Analysis
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Dongsheng AN1, 4, Huzi NIE2, Yang LIU3, Baoshan ZHAO1, 4, Chengming YAN1, 4, Ran KONG1, Junbo SU1, *
Chinese Journal of Tropical Crops | 2024, 45(3) : 495 - 502
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Chinese Journal of Tropical Crops | 2024, 45(3): 495-502
• Plant Cultivation, Physiology & Biochemistry •
Screening of New Sugarcane Varieties with High Light Efficiency and Photosynthetic Potential Analysis
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Dongsheng AN1, 4, Huzi NIE2, Yang LIU3, Baoshan ZHAO1, 4, Chengming YAN1, 4, Ran KONG1, Junbo SU1, *
Affiliations
  • 1.South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Sciences / Guangdong Engineering Technology Research Center for Dryland and Water Saving Agriculture, Zhanjiang, Guangdong 524091, China
  • 2.Agro-Tech Extension Center of Guangdong Province, Guangzhou, Guangdong 510515, China
  • 3.Jiaxing Vocational and Technical College, Jiaxing, Zhejiang 314036, China
  • 4.Zhanjiang Experimental and Observation Station for National Long-term Agricultural Green Development, Zhanjiang, Guangdong 524091, China
Published: 2024-03-25 doi: 10.3969/j.issn.1000-2561.2024.03.007
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Screening new sugarcane varieties with high light efficiency could guarantee the high-quality development and sugar safety. Chlorophyll fluorescence parameters were measured and calculated from Lake-model for 3 commercial varieties and 10 new varieties to investigate the sugarcane photosynthetic potential under cloudy and sunny day through the mechanism model of photosynthetic electron flux (J) response to light. The results showed that light energy balanced between photosynthetic election transport and regulated energy dissipation (ΦNPQ) under low and high light, the appearance of increased non-regulated energy dissipation (ΦNO) under middle light resulted from the different transition mode among each sugarcane varieties according to increasing photo active radiation (PAR) other than photo-damage. Compared with in sunny day, the initial light utilization rate (αe) of all sugarcane varieties was significantly higher in cloudy day, but J showed sharp decrease at the same PAR level. RG16117 and RG 1997 exhibited the highest photo-quantum efficiency (ΦII) in cloudy and sunny day respectively, which showed no significantly difference between RG16239 and RG1997 under high light. ΦII of RG16239 was lower than ROC22 and RG1997 under low and middle light with the lowest ΦNO, but the saturate PAR and maximum J were relatively high under high light. The photosynthetic electron transport capacity index (JPT) based on the weight ratio of cloudy and sunny days in recent 5 years exposed as RG1997 (21.93)>ROC22 (21.43)>ROC16 (20.62)>RG16239 (20.27)>GL05136 (19.43)>RG11713 (19.30)>RG1462 (19.29)>RG14291 (19.03)>RG16117 (18.94)>RG1339 (18.93)>RG1876 (18.08)>RG1 (17.41)>RG11559 (16.84), which made RG1997 and RG16239 high light efficiency varieties.

sugarcane  /  high light efficiency  /  new varieties  /  screening  /  photosynthetic potential
Dongsheng AN, Huzi NIE, Yang LIU, Baoshan ZHAO, Chengming YAN, Ran KONG, Junbo SU. Screening of New Sugarcane Varieties with High Light Efficiency and Photosynthetic Potential Analysis[J]. Chinese Journal of Tropical Crops, 2024 , 45 (3) : 495 -502 . DOI: 10.3969/j.issn.1000-2561.2024.03.007
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Article Info
doi: 10.3969/j.issn.1000-2561.2024.03.007
  • Receive Date：2022-08-22
  • Online Date：2026-06-26
  • Published：2024-03-25
Article Data
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History
  • Received：2022-08-22
  • Revised：2022-10-30
Funding
Affiliations
    1.South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Sciences / Guangdong Engineering Technology Research Center for Dryland and Water Saving Agriculture, Zhanjiang, Guangdong 524091, China
    2.Agro-Tech Extension Center of Guangdong Province, Guangzhou, Guangdong 510515, China
    3.Jiaxing Vocational and Technical College, Jiaxing, Zhejiang 314036, China
    4.Zhanjiang Experimental and Observation Station for National Long-term Agricultural Green Development, Zhanjiang, Guangdong 524091, 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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