棉花保纯保壮法是将“保纯保壮、低代密封冷藏贮种、分期隔离精繁原种”的各环节组装配套完成的,该方法是吸收国外棉花育种中自交保纯的经验,结合当地空气干燥、高温低湿,有长期贮存棉种不降低生活力,不变质的有利条件,通过不断实践总结出一套新的棉花良繁技术。其中就地冷藏干贮原种,分批精繁原种的内容在国内是首次提出、并实施的,在吐鲁番盆地长期干贮棉花种子不影响生活力的现象,虽早有发现,但用于种子繁殖,用于大面积生产是本成果中首次提出。在自交方法操作中,以纸袋套花代替夹花冠或以线缚花冠的做法,完全堵绝了异花授粉的可能性。增加了自交单株选择的纯度,提高了原种纯度,本方法经实际应用表明,能有效地保持原品种的优良种性,比传统的三圃制方法更简便易行。一次性制种数量多,节工省本,可满足大面积棉田的用种。 Pure cotton Paul Baozhuang method is to “Bao Chun Bao Zhuang, the low generation of sealed refrigerated storage, isolation and isolation of protozoa,” the completion of the various components of the assembly, the method is to absorb foreign cotton breeding self-protection of pure Experience, combined with the local air-dry, high temperature and low humidity, long-term storage of cotton species does not reduce the viability, non-deterioration of the favorable conditions, through continuous practice summed up a new set of good cotton propagation techniques. One of the local cold storage of dry stock, the content of the original batch of refined batch is the first time in China, and the implementation of long-term dry storage in the Turpan Basin cotton seed does not affect the viability of the phenomenon, although it has long been found, but for Seed multiplication, used for large area production is first presented in this result. In the selfing method, the possibility of cross-pollination is completely blocked by replacing the crown with a bag of flowers in the bag or by binding the crown. Which increases the purity of the self-crossed single plants and improves the purity of the original ones. The practical application of the method shows that the superiority of the original cultivars can be effectively maintained, which is more simple and convenient than the traditional three-cropping system. A one-time seed production, labor-saving provinces, to meet the large area of ​​cotton seed.