Analysis of Growth Feature and Population Construction of Sweet Maize Mintian 208
-
摘要: 多年生育特性观测表明, ‘闽甜208’甜玉米春播采青生育期8690d, 秋播采青生育期7376d, 生育动态呈现苗期弱, 中间旺长稳定期短, 后期早衰快的生育特性, 栽培上要注重精细播种, 各项田间管理要及时到位。群体结构试验表明, ‘闽甜208’叶面积系数 (LAI) 及叶片净同率 (NAR) 较高, 峰值持续时间较长, 大喇叭口至抽雄期LAI对NAR影响最大, 通过密植保证一定的总粒数, 增加抽雄后群体叶面积及干物质积累, 提高成粒率, 是高产的关键措施, 适宜种植密度为4.95万5.40万株·hm-2。Abstract: Growth characteristics and population construction of Mintian 208 were studied.Growth characteristic results showed that the growth period of Mintian 208 is 86-90 days in spring or 73-76 days in autumn in Fuzhou, and the growth are slowly in the first stages, shortly stong growth at middle and fast presenility at late stages.Our results suggest that sowing quality should be well and all management should be on time.Population construction results showed that leaf area index (LAI) and net assimilation rate (NAR) of Mintian 208 are high and their peak values sustains longer, LAI affects NAR most significantly between booting stage and heading stage, suggesting that the key measures for high yield are increasing plant density to ensure plentiful grain number, accumulating dry matter after heading stage and increasing rate of grain.Meanwhile, optimal planting density was 5760thousand plants per hectare.
-
Key words:
- Mintian 208 /
- growth feature /
- population construction
-
[1] 郭庆法, 王庆城, 汪黎明.中国玉米栽培学[M].上海:上海科学技术出版社, 2004:380-406. [2] 刘荣, 张卫建, 齐华, 等.密植型玉米“中单909”高产群体结构特征[J].江苏农业科学, 2013, 41 (5) :56-59. [3] 李明, 李文维.肥料和密度对寒地高产玉米源库性状及产量的调节作用[J].中国农业科学, 2004, 37 (8) :1130-1137. [4] 孙锐, 彭畅, 丛艳霞, 等.不同密度春玉米叶面积系数动态特征及其对产量的影响[J], 玉米科学, 2008, 16 (4) :61-65. [5] 卢和顶, 纪荣昌, 林建新, 等.甜玉米新品种‘闽甜208’的选育[J], 福建农业学报, 2007, 22 (4) :388-392. [6] 杨世民, 廖尔华.玉米密度与产量及产量构成因素关系的研究[J].四川农业大学学报, 2005, 18 (4) :322-324. [7] 李中全, 郑祖平, 四川盆地杂交玉米单作密肥措施研究[J], 杂粮作物, 2000, (2) :23-27. [8] 丁西武, 不同栽培条件对不同生态类型玉米产量的影响[J], 黑龙江八一农垦大学学报, 1997, (6) :6-12. [9] 侯旭, 冯勇, 玉米种植若干问题的分析[J]内蒙古农业科技, 1992, (6) :22-23. [10] 徐庆章, 王庆成.玉米株型与群体光合作用的关系系研究[J], 作物学报, 1995, 21 (4) :492-496. [11] 薛吉全, 马国胜, 路海东, 等.密度对不同类型玉米源库关系及产量的调控[J], 西北植物学报, 2001, 21 (6) :1162-1168. [12] 陆卫平, 不同生态条件下玉米产量库源关系的研究[J], 作物学报, 1997, 23 (6) :725-733. [13] 何萍, 金继运.保绿型玉米的营养生理研究进展[J], 玉米科学, 2000, 8 (2) :41-44. -
点击查看大图
计量
- 文章访问数: 120
- HTML全文浏览量: 24
- PDF下载量: 0
- 被引次数: 0
下载:
