摘要
通过田间采样和室内分析测试相结合的方法,研究啤酒花不同生长年限对土壤过氧化氢酶、脲酶、中性磷酸酶和多酚氧化酶活性的影响。结果表明,根际土壤过氧化氢酶、脲酶和中性磷酸酶活性均显著高于非根际,而多酚氧化酶活性明显低于非根际。随啤酒花植龄延长,过氧化氢酶活性显著降低,脲酶活性显著升高,而中性磷酸酶和多酚氧化酶的活性先升高后降低。与5年植龄的相比,植龄为8,18,20和22年的根际土壤过氧化氢酶活性分别降低14.80%,24.34%,23.03%和22.04%,差异均显著;脲酶活性分别提高3.96%,30.35%,80.99%和106.33%,除8年外,差异均达显著水平。通过对产量和α-酸含量的分析表明,植龄为18和20年时啤酒花产量最高,与其他植龄差异显著;α-酸含量在植龄为5和8年时最高,与其他植龄间差异显著。
The effects of different aged hops （Humulus lu phosphatase and polyphenol oxidase were studied in a fie neutral phosphatase of rhizospheric soil was significantly pulus） on the ld experiment. activities of catalase, urease, neu The activity of catalase, urease greater than that of non-rhizospheric soil, tral and the activity of polyphenol oxidase was significantly less. With an increase in hop age, catalase activity decreased markedly, urease activity markedly increased, while the activity of neutral phosphatase and polyphenol oxidase increased initially but then decreased with age. The catalase activity decreased significantly by 14. 80%, 24.34%, 23.03%, and 22. 04% for the 8, 18, 20, and 22-ages, respectively compared with the 5-age, while the corresponding urease activity increased by 3.96%, 30.35%, 80.99% and 106.33%, even though no significant difference was observed for the 8-age. The yield of hops at 18 and 20 ages was significantly higher than that of other treatments, and the content of α-acid at 5 and 8 ages was significantly higher than that of other treatments.
出处
《草业学报》
CSCD
北大核心
2010年第6期35-40,共6页
Acta Prataculturae Sinica
基金
甘肃省自然科学基金项目(YS031-A21-013)
甘肃省省级学术技术带头人及创新人才项目资助
关键词
啤酒花
根际土壤
不同植龄
土壤酶
hops （Humulus lupulus）
rhizospheric soil
different age
soil enzyme
