CAJ | 학술논문

以番茄品种金粉2号（cv.Jingfen 2）为试验材料，采用称重法控制土壤含水量，设计4个土壤水分处理：对照（CK）、轻度胁迫（T1）、中度胁迫（T2）和重度胁迫（T3），研究不同水分处理对温室番茄叶片保护酶活性及果实产量的影响。结果表明，不同处理番茄叶片超氧化物歧化酶（SOD）、过氧化物酶（POD）、过氧化氢酶（CAT）活性和可溶性蛋白含量均呈先升高后降低趋势；不同处理番茄叶片丙二醛（MDA）含量均呈先降后升趋势；各处理番茄叶片叶绿素a、叶绿素b、叶绿素a/叶绿素b和叶绿素总含量均随处理时间的增加而升高，变化趋势为：CK>T1>T2>T3；水分胁迫下番茄单株坐果数、单果重和单株产量变化趋势为：CK>T1>T2>T3。研究表明，随水分胁迫加剧及时间延长，叶片保护酶活性降低，可溶性蛋白含量下降，叶片膜脂过氧化作用逐渐加强，叶绿素合成受到抑制，光合产物下降，果实产量降低。
이번가품충금분2호（cv.Jingfen 2）위시험재료，채용칭중법공제토양함수량，설계4개토양수분처리：대조（CK）、경도협박（T1）、중도협박（T2）화중도협박（T3），연구불동수분처리대온실번가협편보호매활성급과실산량적영향。결과표명，불동처리번가협편초양화물기화매（SOD）、과양화물매（POD）、과양화경매（CAT）활성화가용성단백함량균정선승고후강저추세；불동처리번가협편병이철（MDA）함량균정선강후승추세；각처리번가협편협록소a、협록소b、협록소a/협록소b화협록소총함량균수처리시간적증가이승고，변화추세위：CK>T1>T2>T3；수분협박하번가단주좌과수、단과중화단주산량변화추세위：CK>T1>T2>T3。연구표명，수수분협박가극급시간연장，협편보호매활성강저，가용성단백함량하강，협편막지과양화작용축점가강，협록소합성수도억제，광합산물하강，과실산량강저。
In order to study the effects of various water supplies on the leaf senescence and protective enzyme characteristics of tomato, a research has been conducted under four models of water supply such as normal water supply (CK), light water treatment (T1), moderate water treatment (T2) and severe water treatment (T3) to tomato cv.'Jingfen2' which was chosen as a trail material. The research were controlled by weighing the soil and pots. The main conclusion includes five aspects. The activity of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) showed a increasing trend firstly and then decreased under different water treatments. The trend of leaf malonaldehyde (MDA) content in all treatment were reduced before raising trend. The soluble protein content were first elevated and then decreased during the whole growing period;the content of chlorophyll a, chlorophyll b and total chloro-phyll were lower than the normal water treatment under water stress, and the change regularly showed by the order, CK>T1>T2>T3 during the whole growing period;the number of per plant, the weight of per tomato and the yield of per plant under water stress were lower than the CK, and the change regularly showed the following, CK>T1>T2>T3. The study also indicated that with the water stress enhancing and the days increasing after irrigation, the protective enzyme activity decreased, the soluble protein con-tent reduced, the membrane lipid peroxidation increased gradually, the chlorophyll synthesis was inhibited, and the photosynthetic products and the yield of fruit decreased.