【摘要】 夏播条件下,研究四川大豆地方品种群体主要农艺、品质性状在南京的遗传变异特点和性状相关.与长江中下游大豆地方品种群体比较,四川群体产量水平较低、籽粒小、蛋白质含量较高、脂肪含量较低、生育期短,植株矮小、抗倒伏.本群体生育期、单株荚数和百粒重遗传变异丰富,而产量、品质性状遗传变异较小.产量与生育期显著正相关,而与品质性状无关;蛋白质含量与脂肪含量显著负相关,与生育期显著正相关;脂肪含量与生育期显著负相关.更多还原

【Abstract】 A random sample of 98 soybean landraces from Sichuan Province was tested in Nanjing tostudy their genotypic variability and correlations among agronomic and economic traits.The Sichuan popu-lation appeared to have lower population yield,smaller 100-seed weight,higher protein content,less days toflowering(DTF)and days to maturity(DTM),shorter plant height,and higher lodging resistance than thepopulations from the middle and lower reaches of the Yangtze River.The landraces from the four ecologicalregions within Sichuan were different in most traits studied.The relatively large GCV and ΔGS values ofDTF,DTM,number of pods per plant and 100-seed weight indicated comparatively great selectionpotential,while the relatively low GCV and ΔGS values of population yield,oil content and protein contentindicated somewhat small selection responses.Correlation and canonical correlation analysis amongagronomic and economic traits of Sichuan landrace population was also reported in this paper.更多还原