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Controlled surface fire for improving yields of Morchella importuna

文献类型： 外文期刊

作者： Li, Qiang 1 ; Xiong, Chuan 2 ; Huang, Wenli 1 ; Li, Xiaolin 3 ;

作者机构： 1.Sichuan Acad Agr Sci, Biotechnol & Nucl Technol Res Inst, Chengdu 610061, Sichuan, Peoples R China

2.Sichuan Univ, Sch Life Sci, Chengdu 610065, Sichuan, Peoples R China

3.Sichuan Acad Agr Sci, Soil & Fertilizer Inst, 4 Shizishan Rd, Chengdu 610066, Sichuan, Peoples R China

关键词： Fire treatment; Morel developmental stages; Physicochemical soil properties; Formation of ascocarp primordia

期刊名称：MYCOLOGICAL PROGRESS （ 影响因子：2.847； 五年影响因子：2.577 ）

ISSN： 1617-416X

年卷期： 2017 年 16 卷 11-12 期

页码：

收录情况： SCI

摘要： Fire is known to benefit morel production, but the details of how or why remain unknown. To investigate the effects of fire treatment on the occurrence and yield of the morel Morchella importuna in semi-artificial, field-based setups, we designed surface fire treatments using different quantities of burning material (dry Pinaceae twigs). Developmental stages of M. importuna, including the formation and degeneration of mycelium, formation of ascocarp primordia, ascocarp initials, and mature ascocarps, were evaluated in square-meter quadrats in field experiments. Morel yields and soil were compared. Fire treatments corresponding to 1.7 and 2.5 kg burning material/m(2) resulted in clearly increased levels of soil minerals and nutrients, and significantly increased formation of ascocarp primordial and morel yields. None of the fire treatments had a significant effect on the germination rate of primordia. Fire treatments corresponding to 0.8 kg burning material/m(2) did not increase morel yield. Surface fires increased the suitability of soils for the growth and productivity of ascocarps of M. importuna if sufficient burning material is used.

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