[Objective] This study aimed to investigate the effect of trace elements in peanut seed coating agent. [Method] Different concentrations of trace elements Fe and B were added into peanut coating agent, then the germin...[Objective] This study aimed to investigate the effect of trace elements in peanut seed coating agent. [Method] Different concentrations of trace elements Fe and B were added into peanut coating agent, then the germination rate and plant height of the seeds treated by different agents were measured to decide the best formula. [Result] The germination rate and plant height of the seeds treated with seed coating agent was obviously increased. Adding trace elements Fe and B could increase the peanut yield, and 1.5% Fe and 1% B gave the best result. [Conclusion] This study will provide reference for modifying the seed coating agent formula.展开更多
Dormancy is undesirable character for the peanut seed(Arachis hypogeae).KK 84-7 and KK 6 varieties are characterized to the Virginia type and its dormant period has been one to two months after harvest.The recommendat...Dormancy is undesirable character for the peanut seed(Arachis hypogeae).KK 84-7 and KK 6 varieties are characterized to the Virginia type and its dormant period has been one to two months after harvest.The recommendation for breaking peanut seed dormancy by the International Seed Testing Association(ISTA)rules is preheat at 40°C up to 168 h.The total germination test is 17 d,if breaking dormant seed is required.Effect of ethephon on peanut seed dormancy release was studied in this experiment to reduce the analysis time compared to preheat method.Both varieties of peanut seeds were directly mixed with 0.96%ethephon and preheated at 40°C for 168 h.Standard germinations were conducted for all treated and untreated seeds.Ethephon was the most beneficial to release dormant seed at fresh harvest that achieved 86%and 84%normal seedlings for KK 84-7 and KK 6,respectively.The normal seedlings of preheat treatment showed 75%for KK 84-7,and 66%for KK 6.Only 6%normal seedlings were observed in untreated seeds of KK 84-7 and 56%of KK 6.After storage at 20°C for 28 d,KK 84-7 had over 90%normal seedlings with both ethephon and preheat methods,but only 42%germination was observed in untreated seeds.In KK 6,the highest germination by 90%was found in ethephon,followed by untreated and preheated seeds that were 87%and 83%,respectively.The paired t test of normal seedlings between ethephon and preheat treatments demonstrated that the greater average germination was found in ethephon method for both varieties.This research suggests that ethephon is the advantageous method for breaking peanut seed dormancy.The germination test duration is more rapid,only 10 d,since preheat for 168 h is not necessary.展开更多
文摘[Objective] This study aimed to investigate the effect of trace elements in peanut seed coating agent. [Method] Different concentrations of trace elements Fe and B were added into peanut coating agent, then the germination rate and plant height of the seeds treated by different agents were measured to decide the best formula. [Result] The germination rate and plant height of the seeds treated with seed coating agent was obviously increased. Adding trace elements Fe and B could increase the peanut yield, and 1.5% Fe and 1% B gave the best result. [Conclusion] This study will provide reference for modifying the seed coating agent formula.
文摘Dormancy is undesirable character for the peanut seed(Arachis hypogeae).KK 84-7 and KK 6 varieties are characterized to the Virginia type and its dormant period has been one to two months after harvest.The recommendation for breaking peanut seed dormancy by the International Seed Testing Association(ISTA)rules is preheat at 40°C up to 168 h.The total germination test is 17 d,if breaking dormant seed is required.Effect of ethephon on peanut seed dormancy release was studied in this experiment to reduce the analysis time compared to preheat method.Both varieties of peanut seeds were directly mixed with 0.96%ethephon and preheated at 40°C for 168 h.Standard germinations were conducted for all treated and untreated seeds.Ethephon was the most beneficial to release dormant seed at fresh harvest that achieved 86%and 84%normal seedlings for KK 84-7 and KK 6,respectively.The normal seedlings of preheat treatment showed 75%for KK 84-7,and 66%for KK 6.Only 6%normal seedlings were observed in untreated seeds of KK 84-7 and 56%of KK 6.After storage at 20°C for 28 d,KK 84-7 had over 90%normal seedlings with both ethephon and preheat methods,but only 42%germination was observed in untreated seeds.In KK 6,the highest germination by 90%was found in ethephon,followed by untreated and preheated seeds that were 87%and 83%,respectively.The paired t test of normal seedlings between ethephon and preheat treatments demonstrated that the greater average germination was found in ethephon method for both varieties.This research suggests that ethephon is the advantageous method for breaking peanut seed dormancy.The germination test duration is more rapid,only 10 d,since preheat for 168 h is not necessary.
