棉花杂种优势利用的核心是生产杂交种子，人工杂交制种是当前生产杂交种子的主要手段，其技术比较简单，群众容易掌握，现将有关技术介绍如下：一、选好组合杂交组合优势的强弱，对杂种后代的增产起着决定性作用。我市在试验示范的基础上，选用了“中杂028”杂交棉种，它的主要 The utilization of cotton hybrid advantage is the core of the production of hybrid seeds, artificial hybrid seed production is the current production of hybrid seed the main means of its technology is relatively simple, the masses easy to grasp, the relevant technology is introduced as follows: First, select the combination of advantages Weak, the increase of hybrid offspring plays a decisive role. Based on the experimental demonstration in our city, we chose “Zhongza 028” hybrid cotton species, its main