Effects of different mulching measures on bamboo shooting and palatability of Dendrocalamus farinosus

WANG Xiaojuan, MA Guangliang, CHEN Hong, LI Chengxiang, ZHANG Li

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2022, Vol. 46 ›› Issue (2) : 143-149.

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南京林业大学学报（自然科学版）
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JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2022, Vol. 46 ›› Issue (2) : 143-149. DOI: 10.12302/j.issn.1000-2006.202103054

Effects of different mulching measures on bamboo shooting and palatability of Dendrocalamus farinosus

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Abstract

【Objective】The bamboo, Dendrocalamus farinosus, is mainly used for timber, developing the value of bamboo shoots, improving the economic benefits of clustered bamboo, and providing a reference for the cultivation of bamboo shoots in clustered bamboo.【Method】D. farinosus was taken as the research subject, and an orthogonal experimental design with four factors and three levels was applied to investigate the following: the effects of different mulching materials (A1.soil, A2.bamboo chips, A3.chaff shell), mulching thickness (B1.0 cm, B2.15 cm, B3.30 cm), fertilizing amount (C1.0 kg/cluster, C2.1.0 kg/cluster, C3.1.5 kg/cluster), and mulching date (D1.April 15th, D2.April 30th, D3.May 15th) on shooting and palatability of bamboo shoots. Nine tests were conducted (T1.A1B1C1D1, T2.A1B2C2D2, T3.A1B3C3D3, T4.A2B1C2D3, T5.A2B2C3D1, T6.A2B3C1D2, T7.A3B1C3D2, T8.A3B2C1D3, T9.A3B3C2D1), and the changes in shoot quantity, bamboo growth rate, diameter at breast height (DBH), edible rate, appearance, form and flavor of the bamboo shoots were measured and analyzed.【Result】Mulching could reduce shooting and promote the growth. After mulching, the edibility rate of bamboo shoots increased by 38% and was the highest at 15 cm mulching thickness, by up to 47%. The color of the bamboo shell changed from dull dark green to bright purplish-red; the content and percentage of bitter amino acids decreased significantly, while the percentage of umami amino acids increased to some extent, and the oxalate acid and tannin decreased significantly. As a result, the bitter taste of the bamboo shoots was significantly reduced, and the mouthfeel was significantly improved. The best performance was exhibited by T5 (A2B2C3D1); application of NPK compound fertilizer had no significant effect on the shooting and growth of D. farinosus.【Conclusion】Mulching can moderately adjust the rhythm of shooting and growth and improve the palatability and appearance of bamboo shoots of D. farinosus, which is not limited by the material and time, mulching before shooting, and harvesting when bamboo shoot tips break through the mulch.

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Dendrocalamus farinosus / mulching cultivation / shooting and growth / palatability / shoot quality

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WANG Xiaojuan , MA Guangliang , CHEN Hong , et al . Effects of different mulching measures on bamboo shooting and palatability of Dendrocalamus farinosus[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2022, 46(2): 143-149 https://doi.org/10.12302/j.issn.1000-2006.202103054

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