Linseed is a rich source of ω–3 fatty acids and high-quality protein. While in recent years, various industrial applications of linseed oil such as biofuels, are increasing. To find out appropriate sowing dates of two linseed cultivars, a four-year field experiment was accomplished during the growing seasons of 2014, 2015, 2016, and 2017 in Kermanshah, west of Iran. The results showed that the flowering period reduced with delay in planting that followed by exposure to the development of the seed and capsule ripening stages to higher environmental temperature and reduced grain yield consequently. In both cultivars, delays in the planting date also resulted in reductions in yield components. Delayed planting in both cultivars reduced the amount of α-linoleic acid and increased oleic acid. While was not observed significant changes in the total saturated and unsaturated fatty acids with a delay in planting date. In general, based on the results of this experiment, linseed can be cultivated in the region to produce a suitable seed and oil yield, while it should be noted that delay in planting, in addition to reducing yield, will reduce the quality of oil for industrial uses.

亚麻籽是ω-3脂肪酸和优质蛋白质的丰富来源。近年来，亚麻籽油的各种工业应用（例如生物燃料）正在增加。为了找出两个亚麻籽品种的合适播种日期，在伊朗西部的克尔曼沙什的2014、2015、2016和2017年的生长季节进行了为期四年的田间试验。结果表明，开花期随播种时间的延长而减少，随后暴露于种子和荚膜成熟阶段的发展而受到较高环境温度的影响，从而降低了籽粒的产量。在两个品种中，播种日期的延迟也导致产量成分的减少。两个品种的延迟播种减少了α-亚油酸的量并增加了油酸。虽然未观察到总饱和和不饱和脂肪酸的显着变化，但播种日期有所延迟。通常，基于该实验的结果，可以在该地区种植亚麻籽以产生合适的种子和油料产量，但应注意的是，除降低产量外，延迟播种还会降低油料的品质。工业用途。