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

doi:10.12302/j.issn.1000-2006.202103054

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2022, Vol. 46 ›› Issue (2): 143-149.doi: 10.12302/j.issn.1000-2006.202103054

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

WANG Xiaojuan¹(), MA Guangliang¹^,^*(), CHEN Hong², LI Chengxiang¹, ZHANG Li³

1. Luzhou Forestry Scientific Institute,Luzhou 646000,China
2. School of Agricultural Science,Xichang University,Xichang 615000,China
3. Sichuan Academy of Forestry,Chengdu 610081,China

Received:2021-03-31 Accepted:2021-09-13 Online:2022-03-30 Published:2022-04-08
Contact: MA Guangliang E-mail:1308647903@qq.com;49419295@qq.com

Abstract

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.

Key words: Dendrocalamus farinosus, mulching cultivation, shooting and growth, palatability, shoot quality

CLC Number:

S795.5
S718

WANG Xiaojuan, MA Guangliang, CHEN Hong, LI Chengxiang, ZHANG Li. Effects of different mulching measures on bamboo shooting and palatability of Dendrocalamus farinosus[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2022, 46(2): 143-149.

Figures/Tables 11

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试验号 No.	A覆盖材料 mulching material	B覆盖厚度/cm mulching thickness	C施肥量/ (kg·丛^-1) fertilizing amount	D覆盖日期 mulching date
T1	A₁(土壤)	B₁(0)	C₁(0)	D₁(4月15日)
T2	A₁(土壤)	B₂(15)	C₂(1.0)	D₂(4月30日)
T3	A₁(土壤)	B₃(30)	C₃(1.5)	D₃(5月15日)
T4	A₂(竹屑)	B₁(0)	C₂(1.0)	D₃(5月15日)
T5	A₂(竹屑)	B₂(15)	C₃(1.5)	D₁(4月15日)
T6	A₂(竹屑)	B₃(30)	C₁(0)	D₂(4月30日)
T7	A₃(糠壳)	B₁(0)	C₃(1.5)	D₂(4月30日)
T8	A₃(糠壳)	B₂(15)	C₁(0)	D₃(5月15日)
T9	A₃(糠壳)	B₃(30)	C₂(1.0)	D₁(4月15日)

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

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