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通过对大粒品种辐8-1高产株型、生理特性及优化栽培技术的研究明确,它比广陆矮4号(简称广4)具有以下特点:苗期冠层1～3全展叶平均叶开角22.6度,大6度,叶姿较散;穗期秆粗、叶挺、穗齐,中部叶层(高度为31～60cm)的透光率为27.22%,大8.9个百分点.保温育秧素质好,充实度5.1mg/cm,大4.1%;齐穗至成熟的 CGR 和 NAR 为24.34g/m~2·d 和6.83g/m~2·d,高11.5%和11.8%;籽粒容量29.14ml/千粒,大28.09%;茎、鞘物质输出率23.75%,高4.13个百分点;强弱势籽粒的异步灌浆特点明显;五元二次正交旋转设计法小区试验的产量结果,经微机模拟、选优,得出了661套(占总组成方案的21.2%)亩产500公斤以上的农艺优化措施方案,经1991年早季验证,亩产达527.1公斤,比对照增产9.52%,证明方案是可行的.
Through the study on the plant type, physiological characteristics and optimum cultivation techniques of large-grain variety Dian 8-1, it has the following characteristics compared with that of Guanglu Dian 4 (Guang 4): The average leaves Open angle of 22.6 degrees, 6 degrees, leaf posture more scattered; the ear stalk thick, Ye Ting, Su Qi, the central leaf layer (height of 31 ~ 60cm) light transmittance of 27.22%, 8.9% Good and fullness of 5.1mg / cm, 4.1% larger; CGR and NAR from heading to maturity were 24.34g / m ~ 2 · d and 6.83g / m ~ 2 · d, 11.5% and 11.8% ml / 1000 grain, big 28.09%; Stem and sheath material output rate of 23.75%, high 4.13 percentage points; Strong and weak potential grain filling characteristics of the obvious; five quadratic orthogonal rotation design plot yield test results, by computer simulation , Selected, obtained 661 sets (21.2% of the total composition of the program) per acre 500 kg agro-optimization program, verified by the early 1991, 527.1 kg per mu, 9.52% increase compared with the control, that the program It works.