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当前位置: 首页 > 文章 > 裸燕麦(Avena nuda L.)根冠关系的研究 河北农业大学学报 2006,29 (6) 5-7
Position: Home > Articles > studies on the relationship between root and top in naked oats(Avena nuda L.) Journal of Agricultural University of Hebei 2006,29 (6) 5-7

裸燕麦(Avena nuda L.)根冠关系的研究

作  者：
宋晋辉;张立峰;王志辉;高运青
单  位：
河北北方学院计算机系;河北农业大学农学院
关键词：
裸燕麦;地上部生物量;根冠比;相关性
摘  要：
为给裸燕麦(莜麦)的生产调控决策提供理论与技术依据,以品五(晚熟品种)和坝莜一号(早熟品种)2个裸燕麦品种为试验材料,对其不同时期地上部生物量的变化规律及其与根系干重的比值和相关性进行了研究。结果表明:早熟品种和晚熟品种的地上部生物量的变化趋势基本一致,大致分为2个阶段:拔节期至开花期的线性增长阶段与开花期至成熟期的缓慢增长阶段。随着生育期的推移,莜麦的根冠比呈下降趋势。莜麦中期根系干重与地上部总干重呈显著相关,后期相关不显著。
译  名：
studies on the relationship between root and top in naked oats(Avena nuda L.)
作  者：
SONG Jin-hui~(1,2),ZHANG Li-feng~1,WANG Zhi-hui~3,GAO Yun-qing~1(1.College of Agronomy,Agricultural University of Hebei,Baoding 071001,China;2.Agronomy Science Department,Hebei North University,Zhangjiakou 075000,China;3.Computer Science Department,Hebei North University,Zhangjiakou 075000,China)
关键词：
naked oat(Avena nuda L.);canopy biomass;root /shoot ratio;correlation
摘  要：
The variation of canopy biomass,the root/shoot ratio and the correlation between root and shoot in dry weight of naked oats at different growth stages was studied with two varieties,Pin-5(late maturity) and Bayou-1(early maturity).The results showed that,the changes of the top dry weight in early and late maturity varieties were similar and could be divided into two periods,rapidly increasing period(from jointing to flowering) and slowly increasing period(from flowering to maturity).The root/shoot ratio declined with growing processes.The coefficients of correlation between the root dry weight and top dry weight in naked oats of the two varieties was statistically significant in the middle period,but was not statistically significant in the late period.

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