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[目的]研究不同种类、不同生育时期水稻植株细胞壁化学组分变化规律。[方法]应用Van Soest法对普通栽培稻与东乡野生稻在不同生育时期的植株中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)、酸性洗涤木质素(ADL)等含量进行研究。[结果]NDF、ADF、ADL含量的平均值变化范围分别是55.63% ～71.70%、31.98% ～49.61%、2.68% ～5.71%,其中以蜡熟期的东乡野生稻各含量最高,以抽穗期的协青早B各含量最低。在同一生育时期,不同种类水稻的NDF、ADF含量(除抽穗期的NDF)有显著性差异(P<0.05),以东野的含量最高,秀水110其次,以协青早B含量最低。在同一种类水稻中,不同生育时期的水稻NDF、ADF含量差异均达到显著性水平(P<0.05),以抽穗期的含量最低,乳熟期其次,至蜡熟期含量达到最高峰。[结论]籼亚种水稻的NDF、ADF等含量比普通野生稻和粳亚种水稻低,具有一定的秸秆饲料利用价值。籼型水稻若能尽早收割,秸秆配合青贮发酵与酶解等技术可以作为牲畜的有效日粮。
[Objective] The study aimed to study the changes of chemical constituents in the cell wall of rice plants at different growth stages. [Method] Van Soest method was used to study the contents of NDF, ADF and ADL of common cultivated rice and Dongxiang wild rice at different growth stages. [Result] The average range of NDF, ADF and ADL contents were 55.63% -71.70%, 31.98% -49.61% and 2.68% -5.71%, respectively. Among them, the content of Dongxiang wild rice was the highest in waxy stage, Association of blue early B the lowest content. In the same growth period, NDF and ADF content (except NDF) in different rice varieties were significantly different (P <0.05), Higuai highest content, followed by Xiushui 110, and lowest in Xieqingzao B content. In the same type of rice, the NDF and ADF contents of rice at different growth stages reached significant levels (P <0.05), the lowest at heading stage, followed by the milky ripe stage and reached the peak at wax ripe stage. [Conclusion] The content of NDF and ADF in indica subspecies rice was lower than that of common wild rice and japonica subspecies rice, and had certain value of straw feed utilization. If the indica rice can be harvested as soon as possible, straw with silage fermentation and enzymatic hydrolysis technology can be used as an effective diet for livestock.