Study on the Synchronous Development Characteristics of Husk and Cob of Maize Inbred Lines in Different Ecological Regions
Zhu85,Zhu136 and ZM3358 were conducted to study the synchronous development characteristics of husk and cob in 2022 and 2023.The results showed that the husk in Henan extended rapidly on the 1st-7th day of Zhu85,and the rapid growth period of husk was consistent with that of ZM3358,but lower than that of Zhu136,the cob of Zhu85 increased sharply on the 1st-11th day.In Hainan,ZM3358 husk elongation rapid increase period was 13 days,which was 2-3 days longer than that of Zhu85 and Zhu136,and ZM3358 cob elongation gradual in-crease period was 19 days,which was significantly higher than that of Zhu85 and Zhu136.The husk width of Zhu85 in Henan continued to widen,and the husk width of Zhu 136 began to slow down on the 11th day,ZM3358 husk width rapid growth period is the shortest 7 days,the cob diameter of Zhu136 continued to thicken on the 1-17th day,and slightly decreased on the 19th day.The rapid growth period in husk width of ZM3358 in Hainan is 13 days,and the growth period in husk width of Zhu85 and Zhu 136 is 9 days,and the maximum rapid growth period in cob diameter of Zhu85 is 19 days.The husk and cob could maintain synchronous development characteristics.
Summer maizeInbred lineHuskCobSynchronous developmentLogistic model