棉花多功能种衣剂配方筛选试验  

An Experimental Study on Prescription Screening of Cotton Seed Dressing Chemicals with Multi-function

作　　者：夏楚贵 姚安庆[1] 陈德琪 

机构地区：[1]湖北农学院农学系,江陵434103

出　　处：《湖北农学院学报》1992年第2期34-38,共5页Journal of Hubei Agricultural College

摘　　要：针对棉花苗期“早、全、齐、壮、匀”的基本要求,研制出棉花多功能种衣剂的一系列配方。在室内温箱栽培条件下。对各配方进行了筛选。筛选结果为:(1)在温度为14.2℃棉土纸钵栽培条件下,经配方1处理的棉种,出苗后根茎长度、壮度、发芽率、出苗率分别为对照的1.5、1.4、2.3、3.8倍,总发病率下降55～73％,整齐度也明显提高。(2)在温度为23.8℃的砂土纸钵栽培条件下,配方12总效果极其显著,其棉苗根茎壮度、总生物量、发芽率、出苗率分别为对照的1.1～2、2.7、1.8、1.8倍,发病率下降75.78％.(3)在温度为23.8℃的砂土纸钵栽培条件下,配方15对根系生长有很强的刺激作用,根茎比达2.7,为对照的1.7倍,须根增多,苗子长势稳鍵,在其它诸方面指标也明显优于对照.Based on the basic demands of cotton seedling stage—early, even emergence, full stand, strong and well-distributed, a series of prescription of cotton seed dressing chemicals with multi-functionwere developed in this experiment.In the condition of hot box cultivation in the lab, all prescriptions were screened.The result of screening is that: (1)In the cultivation condition of paper pot with cotton soil with temperature 14.2℃ and treating cotton seed with prescription 1, the length and thickness of the root and stem of seedling, thepercentage of germination and the rate of emergence were 1.51.4, 2.3, 3.8 times those of CK, respectively.The percentage of all disease incidences dropped 55～ 73% and the eveness of the seedling was obviously higher than that of CK.(2) In the cultivation condition of paper pot with sandy soil with temprature 23.8℃, the total effect of prescription 12 was extremely notable.The thickness of root and gtem, the tolal growth biomass, the germination percentage and the rate of e ergence were 1.1～2, 2.7, 1.807, 1.786 times those of CK, respctively.The percentage of diseases dropped 75.78％.(3)In the same condition of above, prescription 15 strongly promoted the growth of root of cotton.The ratio of root and stem of treatment was up to 2.7 which was 1.7 times that of CK.The unmber of the fibrous root of treatment increased and seedling was growing firmly .The indexes of all other aspects of treatment were better than CK.

关 键 词：农药 棉花 种衣剂 配方 

分 类 号：S482.1[农业科学—农药学]