摘要
用玉米杂交桂顶１号，于１９８８～１９８９年在广州分期播种试验。结果表明：全生育期长度、株高、穗长、穗粗、产量均受到农业气象条件的影响。全生育期的有效积温和生育期天数分别是１５０９℃和１０１．４天。生育期长短主要由温度因子决定，产量由穗长、穗粗和行粒数决定，试验结果还表明：广州地区玉米的合适播种季节是春季和秋季。
Different planting date experiments of hybrid corn Gudin No. 1 were conductedfrom 1988 to 1989 in Guangzhou. The results showed that the length of growing period.Plant height,ear length and size were highly concerned with agro-meteorolgieal conditions.The effective accumulated temperature and days of growing period were 1 509℃and 101.4days respectively. The length of growing period was mainly determined by temperature fac-tor,and yield was determined by ear length,size and grain numbers of each row. The suitableplanting seasons are spring and autumn.
出处
《华南农业大学学报》
CAS
CSCD
1994年第1期122-126,共5页
Journal of South China Agricultural University
关键词
玉米
分期播种
农业气象条件
Corn
Planting date
Agro-meteorogy conditions
