正协同效应 meaning in Chinese

positive cooperative effect

Among inorganic salts tested , k2hpo4was more essential to the sclerotia formation and carotenogenesis of strain pt9s than kcl , mgso4 or feso4 it was also shown that the combination of k2hpo4 , kcl and mgso4 could produce the best positive cooperation and give the highest sclerotia biomass ( 782mg / plate ) and pigment yield ( 328 g / plate ) . all of five carbon sources , i . . e
4 .研究了无机盐和碳氮源对青霉pt95菌株菌核生物量和类胡萝卜素产率的影响作用，结果表明:供试的4种无机盐中， kzhpo ;的单因子效应最好; kzhpo4 + kci + mgs04表现出最好的正协同效应。