论文部分内容阅读
大田条件下,通过比较花生超高产田(产量≥8.5 t/hm2)和一般高产田(产量≥6.0 t/hm2)群体特征和光能利用率得:叶面积系数峰值持续时间长是超高产花生的一个显著特点;超高产田全生育期光合势明显高于一般高产田;产量形成期光合势占全生育期的80％以上,对产量的形成至关重要;超高产田单位叶面积光截获效率低于一般高产田:超高产田的干物质生产速率全生育期始终高于一般高产田,干物质生产速率峰值高,后期下降速度慢,是超高产群体的显著特征;花生光能利用还有很大的潜力;研究适宜的栽培条件和措施是今后花生再高产主攻方向。
Under field conditions, the population characteristics and light energy utilization rate of peanut super-high-yielding fields (yield≥8.5 t / hm2) and general high-yielding fields (yield≥6.0 t / hm2) were obtained: A remarkable feature; the photosynthetic potential of the super-high-yielding field during the whole growth period was significantly higher than that of the general high-yielding field; the photosynthetic potential of the formation period was more than 80% of the whole growth period, which was crucial to the yield formation; The yield of dry matter in the super-high-yielding field was always higher than that of the general high-yielding field at all growth stages, the peak value of the dry matter production rate was high and the decline rate was slow in the late stage, which was the prominent feature of the super-high-yielding population. Great potential; research suitable cultivation conditions and measures is the future direction of peanut and then high-yielding.