摘要
通过测定甘蔗+1叶片的SPAD值和全氮含量,研究广西壮族自治区和云南省甘蔗不同生育期叶片SPAD值和全氮含量的变化,并探讨叶片SPAD值与全氮含量的关系。结果表明:(1)广西蔗叶的SPAD值比云南省的高,两省甘蔗叶片全氮含量相近;(2)随着甘蔗的生长,甘蔗成熟期(11月)蔗叶的SPAD值和全氮含量高于甘蔗伸长期(8月);(3)广西蔗叶的SPAD值与其全氮含量相关性显著,云南省蔗叶两者间的相关性不显著。
SPAD and total nitrogen content of the 1st leaves from the tip of asugarcane plant were determined.Correlation between the two measurements during the growth periods of the plants farmed in Yunnan and Guangxi provinces was studied.The results showed that（1）the leaf SPAD of the sugarcanes in Guangxi was higher than that in Yunnan,but the nitrogen contents were similar;（2）SPAD and total nitrogen were higher at plant maturation in November than when the leaves continued to elongate in August;（3）a significant correlation was found between the leaf SPAD and total nitrogen on plants in Guangxi,but not between them on those in Yunnan.
出处
《福建农业学报》
CAS
北大核心
2015年第6期622-624,共3页
Fujian Journal of Agricultural Sciences
基金
国家现代农业产业技术体系建设专项(CARS-20-3-4)
农业部项目(GJFP2015010)
关键词
甘蔗
叶片
SPAD值
全氮
sugarcane
leaf
SPAD
nitrogen content
