摘要
运用三元二次通用正交旋转组合设计研究密度、施氮量、施钾量对甘蓝型杂交油菜一次分枝数、总茎枝数形成的影响，并建立相应的数学模型。结果表明，三因素对群体中一次分枝数、总茎枝数影响的大小顺序为密度＞施氮量＞施钾量，其中密度和施氮量对一次分枝数、总茎枝数影响的一次项效应分别达极显著水平和显著水平。群体的一次分枝数、总茎枝数与群体的生物产量均呈极显著正相关。
Accordingto aquadratic regressionorthogonalgyrationcombination design,density,nitrogenand potassium applied amounts onstem andbranch forming in hybrid rape( B napus )were investigated and a mathematical model were established The influence on secondary branch number(SBN)and total stem and branch number(TSBN)were follows the order:density>nitrogen applied amounts>potassium applied amount Effects of density and nitrogen on SBN and TSBN reached extremely significant and significant levels respectively The population SBN and TSBN are extreme significantly correlated with the biological yields
出处
《贵州农业科学》
CAS
1997年第6期8-11,共4页
Guizhou Agricultural Sciences
关键词
甘蓝型油菜
密度
施肥量
枝数形成
数学模型
secondary branch number(SBN)
total stem and branch number(TSBN)
biological yield
mathematical model
regression design
