CAJ | 학술논문

为确定西瓜断根嫁接苗成活后的最佳昼温和光照强度，研究了不同昼温和光照条件下，西瓜断根嫁接苗生长和生理特性的变化。试验结果表明，180μmol·m-2·s-1光照强度处理下的西瓜断根嫁接苗质量显著优于100μmol·m-2·s-1光照强度处理，说明在一定的范围内，增加光照强度能显著提高西瓜断根嫁接苗的质量。24℃昼温处理下的西瓜断根嫁接苗的生长速率略低于28℃和32℃昼温处理，但是该处理下的嫁接苗较为健壮，积累了较多的干物质，具有较高的根冠比和壮苗指数，受到的伤害较小，更符合西瓜嫁接壮苗的标准。
위학정서과단근가접묘성활후적최가주온화광조강도，연구료불동주온화광조조건하，서과단근가접묘생장화생리특성적변화。시험결과표명，180μmol·m-2·s-1광조강도처리하적서과단근가접묘질량현저우우100μmol·m-2·s-1광조강도처리，설명재일정적범위내，증가광조강도능현저제고서과단근가접묘적질량。24℃주온처리하적서과단근가접묘적생장속솔략저우28℃화32℃주온처리，단시해처리하적가접묘교위건장，적루료교다적간물질，구유교고적근관비화장묘지수，수도적상해교소，경부합서과가접장묘적표준。
To find out the optimal daytime temperature and light intensity for root-pruning grafted watermelon seedlings, we investigated the growth and physiological changes of grafted seedlings under different daytime temperatures and light intensities. The results showed that, the quality of root-pruning grafted watermelon seedlings was significantly better under 180 μmol·m-2·s-1 light intensity than those under 100 μmol·m-2·s-1 light intensity, indicating the quality of root-pruning grafted watermelon seedlings could be improved significantly when the light intensity was increased in a certain range. Although the growth rate of grafted watermelon seedlings under 24℃ daytime temperature was slightly lower than those under 28℃and 32℃daytime temperature, the seedlings under 24℃ daytime temperature had more dry matter, as well as higher root-shoot ratio and vigor index, which were more conformed to the standard of strong seedling.