Comparative Regional Trial Study of Different Buckwheat Varieties in Hilly and Gullied Areas
To identify and utilize excellent buckwheat germplasm resources,to screen out buckwheat varieties suitable for cultivation in Yan'an,and to provide scientific basis for local buckwheat production,seven introduced and collected sweet buckwheat varieties were used as ex-perimental materials.Through continuous trials in different regions for three years,their phenological period,growth period,agronomic traits and economic yield were analyzed.The results showed that the growth period of the tested varieties ranged from 63 to 85 days,all belonging to medium-early maturity varieties.The plant heights ranged from 60.0 to 141.7 cm,with 1.9 to 3.6 main stem branches and 6.4 to 16.0 main stem nodes.All varieties had compact plant types,and the grain colors were brown,tan and black.The tested varieties had grain weights per plant ranged from 1.4 to 10.5 g,with 1000-grain weight 26.3-42.0 g and yield 658.5-1792.5 kg/hm2.By comparing the yield performance of different test sites,the buckwheat varieties with the highest yields in Baota District,Ansai District and Ganquan County were TQ10-05,TQ10-04 and TQ10-06,respectively.These varieties showed excellent yield performance under local planting conditions and have high promo-tion value.