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(一)品种来源及产量表现兴玉2号是兴义地区农科所于75年用晴隆五穗白XC_(103)选育出的自交系木6作母本,用辽宁的风1B作父本组配而成。通过五年多点试种和一年省区试、两年西南区试结果:兴玉2号具有出苗好、长势强、茎秆粗壮、穗位齐、果穗大、千粒重高、抗病、抗倒等优点.一般亩产800斤左右,最高亩产达1300斤.75～76年在本所小区试种,亩产分别为1121斤和991斤,比对照恩单2号分别增产35％和27％。77～78年在兴义六枝、望谟、兴仁、普安、晴隆、赫章等地小面积多点试种,亩产均超过800斤,最高亩产达1360斤。78年河南省凌县农科所从21个省(市)引进134个玉米杂交种进行品比结果,兴玉二号亩产达1206斤、名列第一.
(I) Variety source and yield performance Xingyu 2 is the female parent of Xingyi No.26 bred by Qingnong Wuweishuai XC_ (103) in 75 years, with Liaoning 1B Father paired with. After more than five years of trial planting and one year provincial test, the two-year southwestern district test result showed that Xingyu No.2 has the advantages of good emergence, strong growth, stalks of stalks, homogeneous ear, large ear, high resistance to disease and resistance And so on.Generally 800 mu per mu, the highest per mu up to 1300 kg.75 to 76 years in the district trial planting, respectively, per mu yield of 1121 pounds and 991 pounds, respectively, compared with the corresponding No. 2 En En yield by 35% and 27%. 77 to 78 years in Xingyi six, Wang Mo, Xingren, Pu’an, Qinglong, Hezhang and other small area more than a try, more than 800 pounds per mu, the highest per capita output of 1360 pounds. In 1984, Ling County Agricultural Science Institute of Henan Province introduced 134 maize hybrids from 21 provinces (cities) for product comparison results. Xingyu II reached 1206 kg per mu, ranking No.1.