论文部分内容阅读
６个玉米品种的幼苗在室内低温培养箱〔温度１℃、光照强度１５０μｍｏｌ／（ｍ２·ｓ）〕处理３天后的结果表明：Ｓｕｗａｎ－３、越Ｐ４７、越ＬＶＮ１２和阳单８２对冷胁迫反应敏感，表现叶片电解质泄漏显著增加、叶绿素含量和幼苗存活率下降；墨３１３０和墨２１７４电解质泄漏和叶绿素含量变化少，幼苗成活率高达９０．０％和９４．４％，说明在６个玉米品种中墨３１３０和墨２１７４的抗冷性最强。室内试验结果与大田一致，表明此鉴定方法可靠可行，且方便、快速，可应用于玉米品种抗冷性鉴定。
The results showed that the seedlings of 6 maize cultivars treated with indoor temperature of 1 ℃ and light intensity of 150μmol / (m2 · s) for 3 days showed that Suwan-3, P47, YueNvN12 and YangDan 82 responded to cold stress Sensitive, leaf electrolyte leakage significantly increased, chlorophyll content and seedling survival rate decreased; ink 3130 and ink 2174 less leakage of electrolyte and chlorophyll content changes, seedling survival rates as high as 90.0% and 94.4%, indicating that six maize varieties Inks 3130 and 2174 have the highest chilling resistance. The indoor test results are consistent with those in the field, indicating that the identification method is reliable and feasible, and convenient and fast, which can be applied to the identification of cold resistance of corn varieties.