碳纳米管对甜瓜种子发芽及幼苗生长发育的影响OA

[Objective]To explore the potential application of carbon nanotubes in vegetable crops.[Method]Melon cultivar of 'Tongtianmi 1' was used as experimental materials,with the ultrasonic experiment on seeds under carbon nanotube treatment.The differences among different levels of carbon nanotubes treatment were investigated at 200,500,800 μg/mL and CK,respectively.Aimed at providing technical reference for the nanomaterial application in horticultural plant research,the effects of carbon nanotube concentrations on seed germination and seedling growth characteristics were compared by measuring seed germination rate,seedling height,ground diameter,total root length,total surface area, average diameter and number of root tips.[Result]The germination energy and the ratio of germination were ranked with T2>CK>T1>T3,the rate of emergence was ranked with T2 > T3 > CK > T1.The effects of carbon nanotubes on seedling height and ground diameter of muskmelon seedlings had little difference.The total root length and total surface area of melon seedlings in T2 treatment group were significantly increased by 56.0％ and 49.4％,respectively,compared with CK.[Conclusion]The germination rate and seedling root growth characteristics under dif-ferent carbon nanotube concentrations were significantly different,and the carbon nanotube mass concentrations with 500 μg/mL was the best control index.