陕4080产量及生理特性研究

Study on Physiological and Yield Characteristics of Cotton Cultivar Shaan 4080

试验结果表明,陕4080叶片中全N含量多,叶绿素含量高,光合强度大,全生育期“源”器官活力强,能满足“库”器官的需求,为高产、优质奠定了基础,此外陕4080结铃集中,成铃率高,成铃速度快,桃大衣分高,脱落率低,为其高产、优质提供了保障。

The high output factors and yield characteristics of cotton cultivar shaan 4080 was studied. The results indicated that the nitrogen contents and chlorophyll contents and photosynthetic rates of leaves were three key factors that forms high output of the Shaan 4080. The more the nitrogen and chlorophyll contents of leaves, the higher output of Shaan 4080 was. It's growth status was much better than that of CCRI19 during every growth development stages, duration of forming cotton-boll was shorter. Cotton-boll was bigger, lint percent was higher, flushing out was quicker, dropping boll rate was lower. These are the basic factors of high yield of Shaan 4080 cultivar.