摘要
2005-2006年在扬州大学实验农场进行了发育特性明显差异的4个冬大麦品种不同播期的田间试验。通过对大麦出叶、叶龄和单株叶面积的系统观测，以生理发育时间为基础，构建了大麦叶龄和单株叶面积动态模型，并进行了检验。结果表明：不同品种和播期大麦叶热间距观测值与模拟值绝对误差为0．2～9．9℃d，根均方差（RMSE）为3．8～5．4℃d；叶龄预测绝对误差为0～1．9，RMSE为0．6～0．7；最终叶片数预测绝对误差为0．2～2．0，RMSE为0．7～1．0。不同品种在各生育时期单株叶面积观测值与模拟值绝对误差为0．72～9．09cm^2，RMSE为1．20～3．53cm^2。
Through observation and analysis of field experiments with 4 winter barley cultivars and 4 .sowing dates in the Experimental Farm of Yangzhou University, Jiangsu province and based on physiological development time, the dynamic models of the leaf age and leaf area per plant in barley were developed and checked up in various cultivars and sowing dates. The results showed that the absolute prediction error ranges of phyllochron were 0. 2-9.9 ℃ d and the root mean square errors （RMSE） were 3.8-5. 4℃ d. The absolute prediction error ranges of the leaf age were 0-1.9 and the RMSEs were 0. 6-0. 7. The absolute prediction error ranges of the final leaf numbers of main stem were 0. 2-2.0 and the RMSEs were 0. 7- 1.0. The absolute prediction errors ranges of the leaf area per plant were 0. 72- 9.09 cm^2 and the RMSEs were 1.20-3.53 cm^2.
出处
《扬州大学学报（农业与生命科学版）》
CAS
CSCD
北大核心
2007年第1期64-67,共4页
Journal of Yangzhou University：Agricultural and Life Science Edition
基金
江苏省高校自然科学基金资助项目(02KJB210006)
江苏省作物遗传生理重点实验室开放课题(02738800352)
关键词
大麦
叶龄
叶面积
器官建成
模拟
barley
leaf age
leaf area
plant organ formation
modeling
