不同播期对秋植超甜玉米产量及品质性状的影响

Effect of Autumn Sowing Time on Production and Quality of Super Sweet Corns

在秋季生产条件下,探讨不同的播种期对超甜玉米产量和品质相关性状的影响。结果表明：（1）产量影响：通过不同播种期各品种产量的多重比较,在福建适当迟播,可以提高产量;通过不同品种在不同播种期的产量情况的多重比较,在试验设计的5个播种期中,早熟品种随着播种期的推迟,产量不断提高;中、晚熟品种随着播种期的推迟,产量先增后略微减少;（2）品质影响：播种期对果皮厚度和含糖量的影响不显著,对水分含量和皮渣率有显著影响,特别是晚播可以提高水分的含量,从而延长采收期,秋植超甜玉米最适采收期平均可以达8d,

Effect of autumn sowing times on the yield and quality traits of the super sweet corns in Fujian were studied.It was found that late sowing could increase the kernel yield among 5 different dates tested in the experiment.When the sowing was delayed for the early maturing corns,the yield increased steadily with the time extended.On the other hand,for the mid-or the late-variety,slightly delayed sowings increased the yield,but prolonged delays caused slight decreases.In terms of quality,sowing time did not appear to induce significant effects on the skin thickness and sugar content of the kernels,but did on the moisture and pulp contents.Late sowing could increase the water content in the corns to allow an extended period for harvesting,which could last up to 8days,as compared to 2-4days in spring sowing.