CAJ | 학술논문

以郑单958为对照，对3个高产玉米品种籽粒灌浆特性进行研究，并运用Logistic生长模型拟合籽粒灌浆过程（R2＞0．99），结果表明：迪卡517、登海605和金海5号较郑单958（CK）达到灌浆峰值后的灌浆速率下降相对较慢；籽粒灌浆速率和干物质积累量在籽粒生长各阶段均存在品种间差异，3个高产品种的最大灌浆速率、灌浆速率最大时生长量和平均灌浆速率均明显高于郑单958，而灌浆活跃期各品种表现与之接近。籽粒灌浆速率的提高，尤其是快增期灌浆速率高，利于缩短后期库容建成时间，促进籽粒快速灌浆，从而能进一步发挥品种增产潜力。
이정단958위대조，대3개고산옥미품충자립관장특성진행연구，병운용Logistic생장모형의합자립관장과정（R2＞0．99），결과표명：적잡517、등해605화금해5호교정단958（CK）체도관장봉치후적관장속솔하강상대교만；자립관장속솔화간물질적루량재자립생장각계단균존재품충간차이，3개고산품충적최대관장속솔、관장속솔최대시생장량화평균관장속솔균명현고우정단958，이관장활약기각품충표현여지접근。자립관장속솔적제고，우기시쾌증기관장속솔고，리우축단후기고용건성시간，촉진자립쾌속관장，종이능진일보발휘품충증산잠력。
In this experiment, the grain filling characteristics of three high -yielding maize cultivars were studied with ZD958 as control.The Logistic growth equation was used for the fitting of grain filling process(R2 >0.99).The results showed that the grain filling process of the four cultivars showed a single peak curve consistently.Compared to ZD958, the grain filling rate of DK517, DH605 and JH5 decreased more slowly after the peak.The grain filling rate and dry matter accumulation were different in different grain growth period between different cultivars.The maximum and average grain filling rate and the grain weight at the stage with the maximum grain filling rate were all higher than those of ZD958;but in the active grain filling period, the performance of the three cultivars were same with that of ZD958.Therefore, enhancing the grain filling rate, especially in the rapidly increasing phase of grain weight, could accelerate the whole grain filling progress to shorten the duration of late grain filling,and maybe contribute to reaching a higher yield potential of maize hybrids.