CAJ | 학술논문

为探索棉花杂种优势利用的新途径,简化棉花杂交制种程序,降低棉花种子生产成本,提高经济效益,在利用海岛棉与陆地棉进行亚种间杂交方法获得的雌雄异熟材料的基础上,利用回交转育等多项技术,获得了遗传性状稳定,农艺性状优良的异熟系亲本,并利用该亲本测交选育出优良杂交棉组合"异优7号".在育种研究的基础上系统归纳了棉花雌雄异熟两系法育种的原理与方法,总结了一整套雌雄异熟两系法杂交棉育种技术,它具有生产程序简便、成本低、易选育强优势组合等特点,能较好地解决棉花杂种优势利用长期存在的若干问题.在实际生产上具有广泛的应用前景.
위탐색면화잡충우세이용적신도경,간화면화잡교제충정서,강저면화충자생산성본,제고경제효익,재이용해도면여륙지면진행아충간잡교방법획득적자웅이숙재료적기출상,이용회교전육등다항기술,획득료유전성상은정,농예성상우량적이숙계친본,병이용해친본측교선육출우량잡교면조합"이우7호".재육충연구적기출상계통귀납료면화자웅이숙량계법육충적원리여방법,총결료일정투자웅이숙량계법잡교면육충기술,타구유생산정서간편、성본저、역선육강우세조합등특점,능교호지해결면화잡충우세이용장기존재적약간문제.재실제생산상구유엄범적응용전경.
Based on research of dichogamy-two-line hybrid breeding in cotton for several years, this paper summed up the principle and method of dichogamy-two-line breeding in cotton. It had characters of simple procedure, low cost and easy-selected combination of the characteristics of strong advantages. The advantages and usage prospects of dichogamy-two-line breeding were analyzed.