Foliar application of 24-epibrassinolide enhances leaf nicotine content under low temperature conditions during the mature stage of flue-cured tobacco by regulating cold stress tolerance

Table 1 Foliar application of different concentrations of EBR significantly improves the economic properties of flue-cured tobacco

Treatment	Yield / kg·ha^− 1	Output value / RMB·ha^− 1	Average price / RMB·ha^− 1	Superior leaves rate /%	Middle and superior leaves rate /%
CK1	1518.90d	39434.25c	25.96b	35.31d	72.64c
A1	1857.90b	48354.75b	26.03b	41.59b	81.52a
A2	1947.90a	52567.35a	26.99a	48.44a	84.58a
A3	1775.70c	45752.85b	25.77b	38.24c	78.45b

Note CK1 means foliar spraying with 250 mL of water per plant; A1 indicates foliar spray ing with 250 mL of 0.1 mg·L^− 1 24-epibrassinolide (EBR) solution; A2 indicates foliar spraying with 250 mL of 0.2 mg·L^− 1 EBR solution; A3 indicates foliar spraying with 250 mL of 0.4 mg·L^− 1 EBR solution. The data presented are the mean ± SD. Different letters indicate significant differences among the treatments based on Duncan’s test (P < 0.05)

ISSN: 1471-2229