为揭示亚麻抗倒伏能力与产量之间的关系，试验采用田间小区随机区组设计，对杂交后代经预备试验圃筛选得到的6份材料的原茎产量、纤维产量、抗倒性等级等11个农艺性状进行测定，利用主成份分析法进行分析。结果表明：（1）抗倒性等级因子与纤维产量因子代表了参试材料86．65％的信息；（2）在高世代鉴定中，必须把抗倒性等级放在第一位，在选择过程中应适当控制株高，茎粗要适中，以保持茎秆强韧。%To reveal the relationship between flax lodging capacity and yield, a field experiment was carried out by using randomized block design.Six materials from preliminary test nursery were used in the experiment.Meanwhile, 11 agronomic characters such as stem yield, fiber production and lodging re-sistance rating were obtained and analyzed by using Principal Component Analysis.The results showed that:(1) lodging resistance rating factor and fiber production factor represented 86.65% of the tested material information;(2) lodging resistance rating must be prioritized character, then height and stem diameter should be moderate in order to maintain robust stem in the high-generation identification.
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