Abstract:

During the breeding of large spike new wheat varieties, “commodity breeding species”was put forword  for the first time. Breeding was guided with the policies of “based on short-stalked, focused on ear weight, premised of resistance, adjust the plant type, raising kernel number per spike”. Three large-ear varieties were successfully bred including Mianyang 30、 Mianyang 33 and Mianyang 33, which achived the commodity requirements that “field plants with  astrologer characteristics, grain with selling characteristics after harvested”. The varieties passed the variety of validation, popularization and application in production. The spreading area reached 1.86 million hm2, add value is about 987 million yuan. Social, economic and ecological benefits are very significant. This paper focused on the selection methods and techniques of a large panicle type cultivar, as well as the application of these varieties.

Key words: wheat, large spike-type varieties, breeding, application

摘要：

在大穗型小麦新品种选育研究中首次提出“品种商品性育种”理念,以“矮秆为基础,穗重为中心,抗病为前提,调整株叶型,提高穗粒数”的育种策略为指导,育成绵阳30号、绵阳33号和绵阳35号三个大穗型品种,达到“田间植株有看相,收后籽粒有卖相”的商品性要求,通过品种审定,在生产上推广应用,推广面积186.47万hm2,新增产值9.87亿元,社会效益、经济效益和生态效益十分显著。本文重点介绍了大穗型品种的选育方法与技术,以及品种推广应用情况。

关键词: 小麦;大穗型品种;选育;应用