不同栽培措施对胡麻收获指数和产量的影响
Effects of Different Cultivation Measures on the Yield and Harvest Index of Flax

本研究是在播种密度、施肥量及水分管理等不同的栽培条件下探究胡麻收获指数和产量构成因子的差异。通过相关性分析比较灌水与自然条件下不同处理对胡麻收获指数和产量构成的影响。结果表明：1) 胡麻生长中期追施氮肥影响胡麻出苗。2) 灌水条件对胡麻收获指数的影响显著。3) 灌水条件下收获指数与产量间存在显著正相关，与株高、蒴果大小和单株粒重间为主要正相关，其余均为主要负相关，而产量与蒴果大小和每果着粒间存在极显著正相关，与株高为主要负相关，其余均为主要正相关。自然条件下，收获指数与株高、单株有效果、蒴果大小、每果着粒和单株粒重间存在极显著正相关，与千粒重间为主要正相关，与产量间为主要负相关。而产量与株高和蒴果大小间存在极显著正相关，与千粒重为主要负相关，其余均为主要正相关。
This study was conducted to investigate the differences in yield components and harvest index of flax under different cultivation conditions, such as sowing density, fertilizer application and water management. The effects of different irrigation and natural treatments on the yield index and yield components of flax were compared by correlation analysis. The results showed that: 1) applying nitrogen fertilizer at the middle growth stage affected the emergence of flax seedlings. 2) The effect of irrigation on the yield index of Flax was obvious. 3) There was a significant positive correlation between harvest index and yield under irrigation, and the main positive correlation was between harvest index and plant height, capsule size and grain weight per plant, while the others were all negative correlation, the yield was positively correlated with capsule size and seed setting per fruit, negatively correlated with plant height, and positively correlated with the rest. Under natural conditions, there was a significant positive correlation between harvest index and plant height, effective fruit per plant, capsule size, seed setting per fruit and grain weight per plant, and a significant positive correlation between harvest index and 1000-grain weight, and yield was the main negative correlation. The yield was positively correlated with plant height and capsule size, negatively correlated with 1000-grain weight, and positively correlated with others.