行政院農業委員會台南區農業改良場  研究彙報第19號

留母莖數及不同覆蓋物對竹筍產量及品質之影響

張明聰 莊耿彰

摘  要

竹筍不但為本省的主要夏季蔬菜,且可加工以供內外銷,茲為提高其產量及品質,並行合理的集約栽培之目的,而進行本計畫;其中不同覆蓋物分PE布、PVC布(均黑色),P-712黑色非織布、K-711灰色非織布、稻草、切碎稻草、稻殼及蔗葉(C.K)等,而以“竹變”為品種;留母莖數則以麻竹、綠竹、烏腳綠竹、荖濃巨竹為品種,分別留母莖處理2支、4支及6支,以調查其對竹筍產量及品質之關係。

每欉竹筍之留母莖數目,無論是麻竹、綠竹、烏腳綠竹、荖濃巨竹等,其產量均隨著母莖數目的增加而提高,但留4支或6支其差異不顯著;留母莖過程中麻竹、荖濃巨竹、烏腳綠竹由二年生母莖所生竹筍較多,故應多留。品質方面(即竹筍苦味之有無),留母莖數之多寡並無顯著之差異。

覆蓋為生產竹筍主要措施之一,並可影響品質及產量,目前一般筍農大部份使用蔗葉當作覆蓋材料,因此以此為對照比較結果,在各種不同覆蓋處理中,竹筍之產量均與蔗葉覆蓋者相若或較低,但差異不顯著,而品質方面,以非織布(P-712及K-711)覆蓋者最差,苦味甚重,不宜使用,其他如稻草、稻殼、PE布、PVC布則與蔗葉一樣可使用於竹筍生產上。


The Effects of Mother-Stalk Number and Mulching Materials on the Yield and Quality of Bamboo Shoot

M. T. Chang and G. J. Junag

Summary

Bamboo shoot is an important summer vegetable in Taiwan.  For improving it’s yield and quality, an experiment of mother stalk number left of four varieties.  Giant bamboo, Taiwan giant bamboo, Edible bamboo and Green bamboo were conducted at Tainan DAIS.  The treatments of number of stalks are 2 stalks, 4 stalks and 6 stalks.

The other trial of Ta Tao Tin Chu variety was mulched different materials, such as P-412 black, K-711 gray non-woven cloth, PE, PVC plastic sheet (black), straw, cutting straw, chaff sugarcane leaf (check), etc., to investigated the number of stalks and different mulching materials effects on the bamboo shoot yield and quality.

The result indicated that the more number of mother stalks left, the higher yield of bamboo shoot obtained, but 4 and 6 stalks left were not significantly different, we should keep more two-year-old mother stalks of Giant bamboo, Taiwan giant bamboo and Edible bamboo because they produced more bamboo shoot than three-year-old mother stalks. The number of mother stalks left didn’t affect the quality of bamboo shoot.

Mulching is an important technique to the yield and quality of bamboo shoot.  The sugar-cane leaf was used for the mulching material so popularly, that we chose it as the check treatment.  The result is shown that:  Among all treatments of mulching were not significantly different in yield productive, but mulched with P-712 or K-711 non-woven cloth to get a bad quality in comparison of other mulching materials.



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