多效唑对桃树生长结果的调控效应  

THE REGULATIVE EFFECTS OF PP333(PACLOBUTRAZOL)ON THE GROWTH AND FRUITION MET OF “OKUBO” PEACH

作　　者：古润泽[1] 董海富[1] 郭平毅[1] 李德中[1] 

机构地区：[1]山西农业大学

出　　处：《山西农业大学学报》1992年第3期225-227,共3页

基　　金：山西省呈火项目资助课题

摘　　要：在田间条件下用多效唑处理12年生“大久保”桃,早春土施每株6克(原粉)或落花后2周叶面喷布500ppm、1000ppm、1500ppm。结果表明:各种处理均能不同程度地减少新梢生长,缩短节间长度,加大新梢分枝角度,增加中、长果枝比率,但对新梢枝粗无明显影响。无论土施或叶面喷布都增加了叶片叶绿素含量,提高了光合强度,有利于叶片光合产物的合成和积累,并且提高了桃开花座果率,增大果个,果实中总糖含量增加,含酸量降低,糖酸比明显增高,增进了果实品质。Under the condition of orchard soil applying 6g 15% wettable PP333 to 12— year—old″ okubo″ peach in the early spring or 2 weeks after full bloom foliar spray with 500ppm,1000ppm,1500ppm,Experimental results showed that both methods markedly reduced the shoot growth,internodes length,but no effect was observed o shoot thick.Both soil application and foil are spray significantly increased chlorophyll content,photosynthesis,fruit set, fruit growth in treated fruits sugar—acid ratio was higher than untreated fruits.

关 键 词：桃 多效唑 生长 结果 效应 

分 类 号：S662.101[农业科学—果树学]