Abstract:

To solve the problem of weeding in paddy field, a new stable yield and high adaptability millet variety ‘Yugu 31’ was developed by using ‘Yugu 18’ as recurrent parent and ‘Jigu 19×SK492’ as male parent. ‘Yugu 31’ participated in the regional adaptation test of millet varieties 2016-2017, passed the national variety registration in 2018, and the registration number was GPD millet (2018) 410130. The data from regional test during 2016-2017 was analyzed, and the results showed that the average yield of ‘Yugu 31’ in the northeast China summer-sowing region was 5830.5 kg/hm ², 10.33% higher than that of ‘Jiugu 11’ and ranked the first among the tested varieties. In the north China summer-sowing region, the average yield of ‘Yugu 31’ was 5782.5 kg/hm ², 2.25% lower than that of ‘Yugu 18’, and ranked the eighth among the tested varieties. In the late-mature spring-sowing region in the northwest China, the average yield of ‘Yugu 31’ was 5041.5 kg/hm ², 2.19% higher than that of ‘Changnong 35’, and ranked the fourth in the tested varieties. In the early-mature spring-sowing region in the northwest China, the average yield of ‘Yugu 31’ was 5533.5 kg/hm ², 4.04% lower than that of ‘Datong 29’, and ranked the fifth in the tested varieties. ‘Yugu 31’ has the properties of high and stable yield and strong adaptation, and is suitable for planting in areas similar to the above four large millet ecological regions.

Key words: Millet, Herbicide, New Variety Breeding, High-yield, Stable-yield, Adaptability