【摘要】 通过在冀东地区三年的田间试验和室内测定,探讨了来源于不同地区的大豆品种在冀东夏播条件下的农艺性状、生育期结构、器官平衡和产量构成因素。试验结果表明:原产地不同的品种在冀东夏播条件下,农艺性状、生育期结构、生育期比（R/V）、生物学产量、经济系数等都呈现规律性变化。夏大豆籽粒产量与株高、主茎节数、分枝数、单株荚数、单株粒数和百粒重均呈正相关。从回归方程算出冀东地区夏播大豆品种要获得150～200kg/mu的籽粒产量,对主要农艺性状的要求是:株高65cm以上,主茎16节左右,分枝数1～1.28个。在2.5～3万株/mu的密度条件下,单株荚数25个左右。单株粒数45个左右,百粒重15g以上,单株粒重在7～9.5g左右。生物学产量应达到450～600kg/mu,经济系数达到0.35,全生育期与产量呈极显著正相关。冀东地区夏大豆较佳的生育期结构是:出苗至开花期（V_～R₁）30～35d左右,开花至成熟期（R₁～R₈）60d左右,全生育期90～95d左右,生育期比（R/V）值在1.8～2.1左右。吉林、辽宁、北京及石家庄的大豆品种可作冀东地区夏播大豆的重要品种资源。更多还原

【Abstract】 The agronomic characters, growth period structure, organ equilibrum and yield components of sogbean varieties which come from different districts were studied for 3 years under summer sowing condition in Changli, eastern Hebei province. The results showed that the agronomic characters, growth period structure, ratios of reprodudive Vs, vegetative groeth period（R/V）, biomass, and economic coefficient of them presented a regular variation under summer sowing condition in eastern Hebei. There was a positive correlation between seed yield and plant height, node numben of main stem, No of branch, pod namber per plant, kernel number per plant and weight per 100 seeds, respectively. According to regression calculation, under summlr sowing condition in eastern Hebei, 150～200kg/mu seed yield must be based on plant height more than 65cm, node number of main stem around 16 and branch number 1～1.28, under the condition of 25000～30000 plants/mu, major characters should respectively be that pod number per plant is about 25, seed number per plant is 45, weight per. 100 seeds is more than 15g, seed weight per plant is about7～9.5g, biomass yield is more than 450～600kg/mu and the ecpnomic coefficient is around 0.35, on the other hand, there was a quite aignificant positive correlation between seed yield and total growth period. In sestern Hebei, growth period structure of much better summer sowing soybean varieties should be that the period from seedinf to flowering （V_e～R₁）is about 30"35 days, flowering to ripening （R₁-R₈）is around 60 days, total growth period is from90 to 95 dags, R/V is between 1.8and2.1. It was found that the varieties come from Jilin, Liaoning, Beijing Shijiazhuang were important germplasm resources for summer sowing in eastern Hebei province.更多还原