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位于我国北纬40度以北的麦区,栽种有不少优良的春性小麦品种,这些品种对当地粮食生产起了很大作用。由于小麦生长处于当地的温度和长日条件下,形成了特殊的小麦生态类型,因而研究这类品种的生长发育特性对小麦栽种、品种选育和小麦引种有着重要意义。材料和方法试验采用北纬40度以北地区的春性小麦品种4个和广东的舂小麦品种1个,品种名称及来源是辽春6号(辽宁)、克旱6号(黑龙江)、小红皮(内蒙古)、喀什白皮(新疆)和粤麦6号(广东)。试验在华南农业大学教学实验场进行,试验地肥力中等。试验共进行两个年度6个播期。播种地畦宽2米,行距25厘米,浅沟条播,播后覆盖火烧坭,每品种播3行。小麦生长期间进行有关生育阶段等内容的调查、记载和考种等,其中全生育期天数指
Located in the wheat area north of latitude 40 degrees north of our country, there are many excellent spring wheat cultivars planted. These cultivars have played a significant role in the local grain production. Because the growth of wheat is under the local temperature and long-day conditions, a special ecological type of wheat is formed. Therefore, it is of great significance to study the growth and development characteristics of these varieties on wheat planting, breeding of varieties and introduction of wheat. Materials and Methods The experiment used 4 spring wheat varieties in north of 40 degrees north latitude and 1 varieties of spring wheat in Guangdong. The names and origins of the varieties were Liaochun 6 (Liaoning), Kehan 6 (Heilongjiang), Xiaohong Pi (Inner Mongolia), Kashi White (Xinjiang) and Yue Mai 6 (Guangdong). The experiment was carried out in the teaching experiment field of South China Agricultural University, with moderate fertility. A total of six sowing dates were conducted for two years. Sowing 畦 wide 2 meters, row spacing 25 cm, shallow trench broadcast, broadcast coverage after burning 坭, each line sowing 3 lines. During the growth of wheat during the stages of childbearing and other content of the survey, records and test seed, etc., of which the whole growth period refers to the number