6340
One - hour priming significantly increased root length stress tolerance index , dry matter stress tolerance index , and total biomass of seedlings ; however , no significant effect of changing duration of Se seed priming was observed on plant height stress tolerance index and shoot / root ratio .
 Chemical: Se
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Se