[1]Institute of Medicinal Plant Development (药用植物研究所). Medicinal Plant Cultivation in China (药用植物栽培学). Beijing: Agriculture Press, 1991



[2]Nakatani M, Komeichi M. Changes in the endogenous level of zeatin riboside, abscisic acid and indole acetic acid during formation and thickening of tuberous roots in sweet potato. Jpn J Crop Sci, 1991, 60: 91–100



[3]Matsuo T, Mitsuzono H, Okada R, Itoo S. Variations in the levels of major free cytokinins and free abscisic acid during tuber development of sweet potato. J Plant Growth Regul, 1988, 7: 249–258



[4]Xue J-P(薛建平), Ge D-Y(葛德燕), Zhang A-M(张爱民). Variation of endogenous hormones of tuberous root of Rehmannia glutinosa in vitro. Acta Agron Sin (作物学报), 2004, 30(10): 1056–1059 (in Chinese with English abstract)



[5]Zhang L-M(张立明). Hormones Regulation and Yield Potential in Organic Development of Source and Sink in Ipomoea Batatas. PhD Dissertation of China Agricultural University, 2003 (in Chinese with English abstract)



[6]Patrick J W, Steains K H. Auxin-promoted transport of metabolites in stems of Phaseolus vulgaris L.: auxin dose-response curves and effects of inhibitors of polar auxin transport. J Exp Bot, 1979, 30: 203–210



[7]Lucas W J. Phloem-loading: a metaphysical phenomenon? In: Heath R L, Preiss J, eds. Regulation of Carbon Partitioning in Photosynthetic Tissue. Am Soc Plant Physiol, 1985, pp 254–271



[8]Wang Q-M(王庆美), Zhang L-M(张立明), Wang Z-L(王振林). Formation and thickening of tuberous roots in relation to the endogenous hormone concentrations in sweet potato. Sci Agric Sin (中国农业科学), 2005, 38(12): 2414–2420 (in Chinese with English abstract)



[9]Nakatan I M. In vitro formation of tuberous roots in sweet potato. Jpn J Crop Sci, 1994, 63: 158–1591



[10]Oritan I T, Yoshida T, Sasamura M. Varietal difference in cytokinin and ABA content in some crops. Jpn J Crop Sci, 1983, 52: 115–116



[11]Nakatan I M, Komeich I M. Distribution of endogenous zeatin riboside and abscisic acid in tuberous roots of sweet potato. Jpn J Crop Sci, 1991, 60: 322–323



[12]Shi C-Y(史春余), Wang Z-L(王振林), Guo F-F(郭风法). Changes of ATPase activity, ATP and ABA content in storage roots during storage root thickening of sweet potato. Acta Bot Boreali-Occident Sin (西北植物学报), 2002, 22(2): 315–320 (in Chinese with English abstract)



[13]Rav I V, Indira P. Crop physiology of sweet potato. Hortic Rev, 1999, 23: 277–339



[14]Jimenez J I, Garner J. Effect of growth regulators on the initiation and development of storage roots in rooted leaves of sweet potato. Phyton Argentina, 1983, 43: 117–124



[15]Aloni R, Aloni E, Langhans M, Ullrich C I. Role of cytokinin and auxin in shaping root architecture: regulating vascular differentiation, lateral root initiation, root apical dominance and root gravitropism. Ann Bot, 2006, 97: 883–893