Effects of 6-Benzylaminopurine Combined with Prohexadione-Ca on Yield and Quality of Chrysanthemum morifolium Ramat cv. Hangbaiju

Yuqin Zhang, Cun Guo, Jing Hu, Fangyu Liu, Sha Fu, Xiaomeng Guo, Qian Chen, Li Zhang, Lixiang Zhu and Xin Hou ()
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Yuqin Zhang: College of Plant Protection, Shandong Agricultural University, Taian 271018, China
Cun Guo: Kunming Branch of Yunnan Provincial Tobacco Company, Kunming 650021, China
Jing Hu: Weihai Academy of Agricultural Sciences, Weihai 264299, China
Fangyu Liu: College of Plant Protection, Shandong Agricultural University, Taian 271018, China
Sha Fu: College of Plant Protection, Shandong Agricultural University, Taian 271018, China
Xiaomeng Guo: College of Plant Protection, Shandong Agricultural University, Taian 271018, China
Qian Chen: College of Plant Protection, Shandong Agricultural University, Taian 271018, China
Li Zhang: College of Plant Protection, Shandong Agricultural University, Taian 271018, China
Lixiang Zhu: College of Agronomy, Shandong Agricultural University, Taian 271018, China
Xin Hou: College of Plant Protection, Shandong Agricultural University, Taian 271018, China

Agriculture, 2023, vol. 13, issue 2, 1-12

Abstract: Increasing shoot branch numbers of Chrysanthemum morifolium Ramat cv. Hangbaiju (Hangbaiju) is crucial for producing high flower yields. Pot experiments were designed to evaluate the effects of foliar application of 6-benzylaminopurine (6-BA) combined with prohexadione-Ca (Pro-Ca) on the yield and quality of Hangbaiju flowers. Foliar application of 6-BA combined with Pro-Ca typically increased leaf chlorophyll content and decreased leaf soluble sugar and soluble protein contents throughout the floral organ growth phase. At the bud formation phenophase stage (August), the contents of gibberellin (GA), indole-3-acetic acid (IAA), and zeatin (ZA) decreased (except for GA content in the 10 mg L −1 6-BA combined with 100 mg L −1 Pro-Ca treatment), but abscisic acid (ABA) content increased. The yield of Hangbaiju flowers was found higher in plants treated with foliar application of 6-BA combined with Pro-Ca. Higher yields were found in the 6-BA 5 + Ca 100 and 6-BA 10 + Ca 100 treatments than in the 6-BA 5 + Ca 50 and 6-BA 10 + Ca 50 treatments, and the highest yield was observed in the 6-Ba 5 + Ca 100 treatment both in 2019 and 2020. Nutritional indices such as soluble sugar, soluble protein, total amino acid, and water extract increased, and medicinal indices such as flavonoid, total phenolics, chlorogenic acid, cynaroside, and 3,5-dicaffeoyl quinic acid slightly decreased after foliar application of 6-BA combined with Pro-Ca; however, they were all higher than the standards recorded in the Chinese Pharmacopeia. Overall, foliar application of 6-BA combined with Pro-Ca could increase the yield and nutritional quality of Hangbaiju flowers, enhancing its tea quality.

Keywords: Chrysanthemum morifolium Ramat cv. Hangbaiju; 6-benzylaminopurine; prohexadione-Ca; yield; quality (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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