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Effect of different exogenous sugars on the growth and nutrient uptake of Malus baccata Borkh. under sub-low root zone temperature.
Yong, Hui; Wang, Peng; Qin, Zhuangzhi; Lyu, De-Guo; Li, Li-Jie.
Afiliación
  • Yong H; College of Horticulture, Shenyang Agricultural University/Key Laboratory of Fruit Quality Development and Regulation of Liaoning Province, Shenyang 110866, China.
  • Wang P; College of Horticulture, Shenyang Agricultural University/Key Laboratory of Fruit Quality Development and Regulation of Liaoning Province, Shenyang 110866, China.
  • Qin Z; College of Horticulture, Shenyang Agricultural University/Key Laboratory of Fruit Quality Development and Regulation of Liaoning Province, Shenyang 110866, China.
  • Lyu DG; College of Horticulture, Shenyang Agricultural University/Key Laboratory of Fruit Quality Development and Regulation of Liaoning Province, Shenyang 110866, China.
  • Li LJ; College of Horticulture, Shenyang Agricultural University/Key Laboratory of Fruit Quality Development and Regulation of Liaoning Province, Shenyang 110866, China.
Ying Yong Sheng Tai Xue Bao ; 35(7): 1825-1832, 2024 Jul 18.
Article en En | MEDLINE | ID: mdl-39233411
ABSTRACT
In northern China, soil temperature slowly rises in spring, often subjecting apple roots to sub-low-temperature stress. Sugar acts as both a nutrient and signaling molecule in roots in response to low-temperature stress. To explore the effects of exogenous sugars on the growth and nutrient absorption of Malus baccata Borkh., we analyzed growth parameters, photosynthetic characteristics of leaves, and mineral element content in different tissues of M. baccata seedlings under five treatments, including control (CK), sub-low root zone temperature (L), sub-low root zone temperature + sucrose (LS), sub-low root zone temperature + fructose (LF), and sub-low root zone temperature + glucose (LG). The results showed that compared to CK, plant height, root growth parameters, aboveground biomass, leaf photosynthesis, fluorescence parameters, chlorophyll content, and the contents of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg) in M. baccata seedlings were significantly decreased under the L treatment, and the content of Ca in roots was significantly increased. Compared to the L treatment without exogenous sugar, photosynthesis, functional parameters, chlorophyll content, and growth parameters increased to different degrees after exogenous sucrose, fructose, and glucose application. The N and P contents in roots were significantly increased. The N, P, and K contents significantly increased in stems while only the Ca content significantly increased in stems treated with sucrose. Leaf N, P, K, Ca, and Mg contents significantly increased after being treated with the three exogenous sugars. In conclusion, exogenous sugars can improve photosynthetic efficiency, promote mineral element absorption, and alleviate the inhibition of growth and development of M. baccata at sub-low root zone temperatures, and the effect of sucrose treatment was better than that of fructose and glucose treatments.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Frío / Raíces de Plantas / Malus País/Región como asunto: Asia Idioma: En Revista: Ying Yong Sheng Tai Xue Bao Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: China

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Frío / Raíces de Plantas / Malus País/Región como asunto: Asia Idioma: En Revista: Ying Yong Sheng Tai Xue Bao Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: China