ZIZIPHUS ACIDOJUJUBA F. TORTUOSA D.K. LI, A NEW FORMA OF SOUR JUJUBE FROM SHANXI PROVINCE, CHINA
Ziziphus acidojujuba f. tortuosa D.K. Li, a new forma of sour jujube (Z. acidojujuba C.Y. Cheng et M.J. Liu, Z. Mill., Rhamnaceae) from Miaoshang seedling nursery in Linyi, Shanxi, China, is described. Its main distinct difference from normal forma is that its branches are curved seriously. It has long and flourishing thorns, dark green ovate-lanceolate leaves with sharply serrate margin, small flowers 5.0-5.3 mm in diameter, early maturity and high yield. It ripens in mid September in Taigu, Shanxi. Its fruits are small and ovate, 2.2 × 1.7 cm (L/T), mean fruit weight 3.2 g, with a seriously sour flavor with 2.38% acid content, a short spindle stone having full seeds including double kernels rate of 30%, and edible rate of 87.9%.
Wang, Y.K., Sui, C.L., Li, D.K., Zhao, A.L. and Ren, H.Y. (2013). ZIZIPHUS ACIDOJUJUBA F. TORTUOSA D.K. LI, A NEW FORMA OF SOUR JUJUBE FROM SHANXI PROVINCE, CHINA. Acta Hortic. 993, 187-189
Ziziphus Mill., Chinese jujube, natural variation, twisting branch