摘要
为提高老芒麦(Elymus sibiricus)牧草产量,采用显微照相法和SPAD-502plus相对叶绿素含量测定仪,研究3个品种老芒麦(X16、X43和青牧1号)的气孔密度和相对叶绿素含量。结果表明,老芒麦气孔密度随生育期逐渐变大,在盛花期达到最大后略有下降;老芒麦叶绿素含量(SPAD)的变化趋势与老芒麦气孔密度的变化趋势基本一致;通过试验得出,青牧1号的气孔密度和SPAD最高,且草产量最高。
To inerease yield of Elymus sibiricus grass, metallograph method and SPAD-502 plus were used to measure stomatal density and relative content of chlorophyll of three eultioars of the E. sibiricus. The results showed that density of E. sibiricus stomatal gradually changed in growth period, and decreased in full-bloom stage, the change trend of relative chlorophyll content （SPAD） of E. sibiricus was the same to potato stomatal density basically. Through the experimental, it was concluded that stomatal density and the SPAD of Qingmu NO. 1 were maximum, and its grass yield was the highest.
出处
《草业科学》
CAS
CSCD
北大核心
2013年第9期1374-1378,共5页
Pratacultural Science
基金
国家科技部科技支撑项目"青海地区优质牧草选育及生产利用技术集成与示范"(2011BAD17B05-5)
农业部行业专项"青海牧区优质高效饲草生产利用技术研究与示范"(201003023)
农业部"青藏高原优良牧草种质资源保护利用"(070401)
关键词
老芒麦
气孔密度
叶绿素
Elymus sibiricus
stomatal density
chlorophyll
