Izvorni znanstveni članak
https://doi.org/https://doi.org/10.5513/JCEA01/25.4.4228
Yield and quality promotion of strawberries through chitosan and potassium combined spray under fluctuating sub-tropical winter
Khadiza Akter KOLY
; Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
Joydeb GOMASTA
; Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
Kifyat KABIR
; College of Agricultural Sciences, International University of Business Agriculture and Technology, Dhaka 1230, Bangladesh
Sharmila Rani MALLICK
; Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
Hasina SULTANA
; Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
Emrul KAYESH
; Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
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* Dopisni autor.
Sažetak
Production of quality strawberries with high nutritive and bioactive properties has faced challenges in the tropics and sub-tropics due to the short and unstable winter conditions. Hence, this study has assessed the vegetative and reproductive behaviors and fruit bioactive properties of strawberry upon the application of chitosan (Cht) and potassium (K) at six varied formulations viz., Cht at 0.6 g/L + K at 2.5 g/L, Cht at 0.8 g/L + K at 2.5 g/L, Cht at 1.0 g/L + K at 2.5 g/L, Cht at 0.6 g/L + K at 5.0 g/L, Cht at 0.8 g/L + K at 5.0 g/L and Cht at 1.0 g/L + K at 5.0 g/L along with control (no spray of Cht or K) following a randomized complete block design with three replications. Results exhibited that Cht at 0.8 g/L + K at 5.0 g/L treatment caused superior vegetative performances and a significantly greater number of flowers (20.67/plant) and fruits (18.00/plant) corresponding to the maximum yield (322.50 g/plant) over other treatments. Among the fruit bioactive compounds, total flavonoid content (21.87 mg/100 g FW) and total soluble solids (10.07%) were estimated maximum at Cht at 1.0 g/L + K at 2.5 g/L, while total anthocyanin (105.82 mg/100 g FW) and vitamin C (58.54 mg/100 g FW) contents were led by Cht at 1.0 g/L + K at 5.0 g/L treatment compared to control. Thus, regulated chitosan and potassium application can improve the yield and nutritive properties of strawberries under heat-stressed sub-tropical field conditions.
Ključne riječi
strawberry (Fragaria × annanasa); foliar feeding; vegetative growth; berry yield; bioactive compounds; temperature stress
Hrčak ID:
324981
URI
Datum izdavanja:
23.12.2024.
Posjeta: 0 *