白粒亚麻新品种张亚2号选育报告

Breeding Report of New Flax Varieties Zhangya 2 with White Kernels

白粒亚麻新品种张亚2号是张掖市农业科学研究院以白粒油用型亚麻品系8158-1为母本、红粒兼用型亚麻7669为父本杂交选育而成。在1997-1998年张掖地区亚麻区域试验中,折合平均产量2935.35 kg/hm^2,较对照品种7511、陇亚7号分别增产28.28%、17.94%。在2005-2006年甘肃省亚麻区域试验中,折合平均产量1 956.15 kg/hm^2,较对照品种陇亚8号减产3.71%。该品种籽粒白色,含油率42.32%,亚麻酸含量57.93%～60.48%,适宜河西走廊2 100 m以下的山川地,甘肃中东部水旱地,以及新疆、青海、宁夏等省（区）的同类地区种植。

Zhangya 2 was a new flax varieties bred by crossing with the parental combination of flax new line 8158-1 with white kernels and oil/flax varieties 7669 with red kernels and oil by Zhangye Institute of Agricultural Science. The average yield of Zhangya 2 was 2 935.35 kg/hm^2 and 28. 28% ,17.94% higher than of the check 7511,1ongya 7 in flax regional test in Zhangye areas which was conducted during the period 1997-1998. The average yield of Zhangya 2 was 1 956.15 kg/hm^2 and 3.71% lower than of the check longya 7 in flax regional test in Gansu province which was conducted during the period 2005-2006. The result showed that Zhangya 2 was the seeds of white and oil rate and linolenic acid content were respectively 42.32% and 57.93%-60.48%. The flax varieties was suitable for planting in 2 100 m below the mountains in the Hexi Corridor, flood and drought in the central and eastern Gansu, as well as Xinjiang, Qinghai, Ningxia, and other provinces （autonomous regions） in similar areas.