Seed Treatment with Iron Chlorine E6 Enhances Germination and Seedling Growth of Rice

Yali Xie, Lihui Wei, Yinghua Ji and Shuo Li
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Yali Xie: School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
Lihui Wei: Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
Yinghua Ji: Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
Shuo Li: School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China

Agriculture, 2022, vol. 12, issue 2, 1-14

Abstract: Iron chlorine e6 (ICE6), also known as iron dihydroporphine, is a new type natural plant growth regulator, which can improve some crops growth. At present, the effects of ICE6 on rice are still unclear. Therefore, it is of great significance to study the effect of ICE6 on rice growth. In this study, the effect of seed treatment with ICE6 on rice germination and seedling growth was evaluated. Rice seeds were soaked with the gradient concentration and gradient time of ICE6, respectively, and then the germination rate, growth indexes and chlorophyll content of rice were determined. The results showed seed soaking with ICE6 could improve rice seed germination, promote seedling growth and increase the chlorophyll content in plants, exhibiting a better growth promoting effect. The optimum soaking condition was 100–200 mg/L (concentration) and 24–48 h (time). The field experiment further verified the growth regulating effect of ICE6 priming on rice seedlings. After seed priming with ICE6, seed vigor became higher, and the activities of α-amylase and protease in germinating seeds increased. The increase of seed vigor might be an important reason that ICE6 improved the germination and seedling growth. In addition, we also found ICE6 treatment could enhance the regeneration ability of seedlings. This work demonstrated the germination and growth promoting effect of ICE6 on rice, and revealed its application potential in rice production. This seed priming technique was of great promotional value in the field.

Keywords: Iron chlorine e6; seed treatment; rice; germination; growth promoting effect (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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