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通过株型和生理特性研究,中83-49与广陆矮4号(简称广4)相比的特点是:苗期冠层叶开角大7～13.2°,株型较松散;穗期秆粗、叶挺、穗齐,中下叶层(高度为0～60cm)平均透光率17.3%,大5.14%.苗期耐寒、素质好,充实度6.91mg/cm,重0.61mg/cm;齐穗至成熟期 CGR,RGR 和 NAR,分别为24.49g/M~2·d,0.03g/g·d 和6.66g/M~2·d,高12.2%,6.9%和9.0%;籽粒容量25.88ml/千粒,大13.8%;叶、茎、鞘物质输出率21.54%,高3.07%;强弱势籽粒异步灌浆特点明显;讨论了该品种的高产栽培措施.
Through the study of plant type and physiological characteristics, the characteristics of Zhong 83-49 and Guangluai 4 are as follows: the opening angle of canopy leaf is 7 ~ 13.2 ° in seedling stage, and the plant type is loose; The average light transmittance was 17.3% and 5.14% respectively in middle and lower leaves (height 0-60 cm) .Hold cold, good quality, fullness 6.91mg / cm and weight 0.61mg / cm; CGR, RGR and NAR at panicle to maturity were 24.49g / M ~ 2 · d, 0.03g / g · d and 6.66g / M ~ 2 · d, respectively, which were 12.2%, 6.9% and 9.0% ml / 1000 grains, 13.8% larger than the control. The output of leaves, stems and sheaths was 21.54% and 3.07% respectively. The characteristics of asynchronous grouting with strong and weak potential grains were obvious.