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为了筛选适合豫北盐碱地种植的高产红麻杂交组合,本研究以H318为对照,比较了栽培在盐碱土壤上的6对红麻杂交组合F1代和F2代的11个性状,分析了各个材料各个性状的竞争优势,F1代和F2代性状的平均竞争优势、显著性、相关性以及F2代性状相对于F1代的衰退率。结果表明:因组合不同,F1代与F2代各个性状的竞争优势差异较大,F2代显著衰退,但少数组合F2代仍具有一定利用价值;F1代与F2代间皮厚、鲜皮晒干率和鲜茎出麻率3个性状上存在极显著正相关;若以收获红麻全杆为目的,则F1代以组合F3A/992、F2代以组合F3A/R7为最佳;若以收获红麻纤维为目的,则F1代以组合P3A/R1、F2代以组合P3A/992为最佳。
In order to screen high-yielding kenaf hybrids suitable for planted in saline-alkali soil of North China, 11 characters of F1 generation and F2 generation of 6 pairs of kenaf cultivated on saline-alkali soil were compared in this study. Competitive advantage of each trait, average competitive advantage of F1 and F2 traits, significance and relativity, and decline rate of F2 traits relative to F1 generation. The results showed that the competition advantages of F1 and F2 generations differed greatly due to the different combinations, and the F2 generation declined significantly, but the F2 combinations still had some utilization value. The F1 and F2 generations had thick skin and fresh skin dried There was a significant positive correlation between the rate of emergence and the percentage of fresh stems’ yield. For the purpose of harvesting kenaf all-round, F1 was the best combination of F3A / 992 and F3 for combination F3A / R7. Kenaf fiber for the purpose, the F1 generation to combine P3A / R1, F2 generation to the combination of P3A / 992 for the best.