播期对糯玉米品种玉美头601主要农艺性状影响试验

Influences of different sowing time on major agronomical traits of waxy maize Yumeitou 601

以糯玉米品种玉美头601为材料,研究不同播期对糯玉米生育期、植株性状、产量性状的影响。结果表明,玉美头601在1-4月播种,随着播期的推迟,糯玉米各生育阶段及全生育期缩短;在5-7月播种,糯玉米的生育期、植株性状和产量性状变化不大;在8-11月播种,随着播期的推迟,糯玉米的各生育阶段及全生育期延长。在1月中旬-3月和8-9月播种,糯玉米植株较高,穗长、穗粗、秃顶、行粒数等性状表现较好,产量较高;在10月中旬以后播种,糯玉米植株较矮,穗长、穗粗、秃顶、穗行数、行粒数等性状表现较差,产量较低。因此,玉美头601在南宁地区露地栽培宜安排在1月上旬-4月中旬、7月中旬-9月中旬播种,在这个时段内播种能获得较好的品质和较高的产量。

This test was to study the influences of different sowing time on the growth duration, plant traits, and yield traits of waxy maize using Yumeitou 601 as the material. The results showed that when waxy maize was sown from January to April, the growing season and growth duration would get shorter with the sowing date delayed. When sown from May to July, the growth duration, plant traits and yield traits changed little. When sown from August to November, the growing season and growth duration would get longer with the prolongation of sowing date. The main characters including plant height, ear length, ear diameter, barren ear tip, and row grains displayed well and led to high yield when sown from middle ten days of January to March and August to September. While sown after middle ten days of October, the ear length, ear diameter, barren ear tip, ear rows, row grains displayed poor and causing low yield. Therefore, the most appropriate sowing date of Yumeitou 601 for good quality and high yield in the open field in Nanning was from the first ten days of January to the middle ten days of April and from the middle ten days of July to the middle ten days of September.