Journal of Tianjin Agricultural University ›› 2019, Vol. 26 ›› Issue (1): 10-13.doi: 10.19640/j.cnki.jtau.2019.01.003

• Researches and Scientific Notes • Previous Articles     Next Articles

Anatomical structure of petiole of 8 North American crabapple in saline - alkali land

LI Rui1, LI Zhen1, YANG Jing-hui1,Corresponding Author, LIU Yan-jun1, WANG Xing2, ZHANG Chao3   

  1. 1. Collegeof Horticulture and Landscape, Tianjin Agricultural College, Tianjin 300384, China;
    2. Tianjin Highway Department, Tianjin 300384, China;
    3. Tianshi College, Tianjin 301700, China
  • Received:2018-03-23 Online:2019-03-20 Published:2019-10-09

Abstract: In order to understand the difference of petiole anatomical structure of north American crabapple and its salt and drought tolerance on the saline-alkali land, north American crabapple varieties such as ‘Donghong’‘Wumei’‘Adam’ and ‘Xiyangyang’ were used as research objects to analyze their anatomical structures. The results showed that the petiole of ‘Xuan li’(7.57 μm)was the thickest in the cuticle, and ‘Wumei’ the thinnest(5.12 μm); the phloem thickness of the petiole of ‘Adam’(426.05 μm)was the largest, and that of ruby(312.47 μm)was the smallest; .The xylem of ‘Adam’(416.28 μm)was the largest and ‘Ruby’(267.00 μm)was the smallest; ‘Donghong’(415.10)had the largest number of xylem and ‘Wumei’(333.45)had the smallest. Comprehensive analysis of membership functions showedthat the drought-tolerance and salt-tolerance upper Adam(0.784 μm)‘Xuanli’(0.757 μm)and Dongahong(0.721 μm)were the strongest, followed by ‘Kells’(0.650 μm), ‘Royal’(0.371 μm)and ‘Xiyangyang’(0.328 μm); ‘Wumei’(0.078 μm)and ‘Ruby’(0.025 μm)were the worst.

Key words: salt tolerance, drought tolerance, North American crabapple, varieties, petiole anatomical structure

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