【摘 要】
：
本试验对50个IR_24水稻辐射早熟突变系的早熟性状进行了田间观察和相关分析,其中的某些突变系相当于迟熟早稻和早熟中稻的生态遗传型,并有一定的应用价值。早熟突变系生育期
【机 构】
：
江苏里下河地区农科所,江苏里下河地区农科所,江苏里下河地区农科所,江苏农学院,江苏农学院 扬州,扬州,扬州,扬州,扬州
论文部分内容阅读
本试验对50个IR_24水稻辐射早熟突变系的早熟性状进行了田间观察和相关分析,其中的某些突变系相当于迟熟早稻和早熟中稻的生态遗传型,并有一定的应用价值。早熟突变系生育期缩短与主茎节数、主茎叶片数减少,叶长、穗长变短,每穗粒数、单株产量和二次枝梗数降低,蛋白质含量增加的关系,经相关分析表明,呈显著相关,而与其他性状,如有效穗数、实粒数等无明显的相关关系。分析早熟性状的遗传参数表明,生育期、株高、每穗粒数、千粒重等有较高的广义遗传力。不实率、二次枝梗数、每穗总粒数的遗传变异系数较大,遗传进度也较高,具有显著的遗传效应。
其他文献
住房保障的范围和方式是住房保障制度的核心。住房保障的范围决定居民中享受住房保障的人群(保障对象);住房保障的形式则决定政府用什么方式对保障对象提供住房保障。目前理
Crystal samples of α-Al2O3 were implanted in different crystalline orientations with CuCl+ at intensities from 6 × 1016 ions/cm2 to 5 × 1017 ions/cm2 and ene
We investigate the detailed epidemic spreading process in scale-free networks with link weights that denote familiarity between two individuals. It is found tha
A novel variational approach is proposed to calculate the ground-state (GS) properties of the two-site Holstein model. By the linear superposition of two cohere
目的分析浅表型食管癌病例的临床及病理特点,提高浅表型食管癌的诊断率。方法采用回顾性分析对桐乡市中医医院住院的45例浅表型食管癌的患者,结合胃镜检查及术后病理,以探讨
本刊讯为全面深入贯彻“后勤变前勤”理念,扎实推进“六个转变”在部队卫勤领域的落地见效,3月15日,武警综合保障基地药品仪器检验所将自主研制的600套防护药材包和空气净化
The spatial components of the autocorrelation function of noninteracting dipoles are analytically obtained in terms of rotational Brownian motion on the surface
We investigate magnetic and crystalline microstructures of melt-spun (Fe0.675Pt0.325 )100-xBx (x = 12, 14, 16, 18,20) nanocomposite ribbons after optimal therma
By employing an inverse-scattering transformation, the exact solution of an N-soliton train in the spin chain with a time-dependent magnetic field is derived. A
We use a procedure to extract valuable information regarding the p-wave halos in 8B and 11Be from the measured nuclear asymptotic normalization coefficients. Wi