CAJ | 학술논문

为评价番茄种质资源苗期的耐旱性,在穴盘育苗条件下,选取8个番茄种质资源,测定其幼苗在控水条件下的萎蔫率、离体叶片失水速率、叶片水分饱和亏缺和叶片质膜透性。结果表明：不同材料在0～6 h与6～24 h的离体叶片失水速率变化趋势基本相似,均表现为前期（0～6 h）失水快,后期（6～24 h）失水慢;在控水条件下,1号、4号、5号和6号材料的幼苗萎蔫率、离体叶片失水速率、叶片水分饱和亏缺变化率和叶片质膜透性变化率均较小,耐旱性较强;番茄苗期萎蔫率与叶片质膜透性变化率的相关系数为0.811,两者呈显著正相关关系,认为控水条件下的番茄幼苗叶片质膜透性变化率可以作为番茄种质资源苗期耐旱性评价的指标。
위평개번가충질자원묘기적내한성,재혈반육묘조건하,선취8개번가충질자원,측정기유묘재공수조건하적위언솔、리체협편실수속솔、협편수분포화우결화협편질막투성。결과표명：불동재료재0～6 h여6～24 h적리체협편실수속솔변화추세기본상사,균표현위전기（0～6 h）실수쾌,후기（6～24 h）실수만;재공수조건하,1호、4호、5호화6호재료적유묘위언솔、리체협편실수속솔、협편수분포화우결변화솔화협편질막투성변화솔균교소,내한성교강;번가묘기위언솔여협편질막투성변화솔적상관계수위0.811,량자정현저정상관관계,인위공수조건하적번가유묘협편질막투성변화솔가이작위번가충질자원묘기내한성평개적지표。
To evaluate the drought tolerance of tomato germplasm at seedling seedlings were cultivated in plug under water control condition, and the seedling stage, eight tomato germplasm wilting rate, dehydration rate of leaves in vitro, leaves water saturation deficit and leaves membrane permeability were determined. The results showed that the dehydration rate of leaves in vitro of different germplasm had the same trend, water loss was rapid in 0 - 6 h, while it was slow in 6 - 24 h. The seedling wilting rate, dehydration rate of leaves in vitro, leaves water saturation deficit change rate and leaves membrane permeability change rate of germplasm No. 1, No. 4, No. 5 and No. 6 were little, that was to say, these germplasm had strong drought tolerance. The correlation coefficient between seedling wilting rate and leaves membrane permeability change rate was 0. 811. It was considered that the membrane permeability change rate could be used as a drought tolerance evaluation index of tomato germplasm at seedling stage under water control condition.