CAJ | 학술논문

以2年生宫藤富士/SH6/平邑甜茶为试材，研究了中间砧不同埋土深度（ T1-中间砧全埋；T2-中间砧埋1/2；T3-中间砧全露）对苹果幼树叶片保护酶和植株生长的影响。结果表明，植株生长与中间砧埋土深度关系密切，新梢长度、新梢粗度、株高、总鲜重、细根生物量均以T1处理最高，T3处理最低，且二者差异显著；各处理的叶片超氧化物歧化酶（ SOD）、过氧化氢酶（ CAT）和过氧化物酶（ POD）变化规律一致，不同处理间存在差异，均以T1处理最高， T3处理最低， SOD和CAT随着季节的变化，均呈现先升高后降低的趋势，在7月初达最大值；植株全氮量、15 N吸收量和氮肥利用率均以T1处理最大， T3处理最小，表明中间砧全埋处理能增强叶片保护酶活性，提高氮肥利用率，促进植株生长，增强树势。
이2년생궁등부사/SH6/평읍첨다위시재，연구료중간침불동매토심도（ T1-중간침전매；T2-중간침매1/2；T3-중간침전로）대평과유수협편보호매화식주생장적영향。결과표명，식주생장여중간침매토심도관계밀절，신소장도、신소조도、주고、총선중、세근생물량균이T1처리최고，T3처리최저，차이자차이현저；각처리적협편초양화물기화매（ SOD）、과양화경매（ CAT）화과양화물매（ POD）변화규률일치，불동처리간존재차이，균이T1처리최고， T3처리최저， SOD화CAT수착계절적변화，균정현선승고후강저적추세，재7월초체최대치；식주전담량、15 N흡수량화담비이용솔균이T1처리최대， T3처리최소，표명중간침전매처리능증강협편보호매활성，제고담비이용솔，촉진식주생장，증강수세。
Using 2-year-old Gongteng ‘Fuji’ apple/SH6/Malus hupenhensis as material, the effects of different buried depths of interstock ( T1-whole interstock was buried , T2-1/2 interstock was buried , T3-whole interstock was exposed ) on leaf protective enzyme activities and plant growth of apple sapling were studied .The results showed that the interstock buried depth was closely related to plant growth .The new shoot length and diameter , plant height , total fresh weight , fine root biomass were the highest and lowest under T 1 and T3 treatment respectively , and they were significantly different .The activities of leaf superoxide dismutase ( SOD) , catalase ( CAT ) and peroxidase ( POD ) had similar change laws throughout the growing season , which were the highest and lowest under T 1 and T3 treatment respectively .The SOD and CAT activities both increased firstly and then decreased , and reached the maximum in early July .The total nitrogen content , 15 N uptake and nitrogen utilization rate were the highest and lowest under T 1 and T3 treatment respectively too . Thus, whole interstock buried treatment could enhance the leaf protective enzyme activities , increase nitrogen fertilizer utilization rate , promote plant growth and strengthen tree potential .