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豫玉二号原名郑单八号,是我院培育的玉米单交种。它具有三大特点:高产、稳产、适应性强;适合密植;株型理想、抗病抗倒。一、高产、稳产、适应性强在1985～1986年河南省和全国夏玉米区试中,豫玉二号两年平均亩产分别为520.9公斤和518.3公斤。1985—1986年,我院粮作所玉米栽培组以该品种作高产栽培研究,分别获得了亩产713.4公斤和724.2公斤,创造了我院玉米高产纪录。1986年,临汝县汝州镇城关村,用豫玉二号作高产示范,面积2.2亩,经省农牧厅、河南农业大学、省农科院
Yu Yu II formerly known as Zheng No. 8, is a corn breed cultivated in our hospital. It has three major characteristics: high yield, stable yield, strong adaptability; suitable for close planting; plant type ideal, anti-disease and anti-down. First, high yield, stable yield and strong adaptability In 1985 ~ 1986 Henan Province and the national summer corn area trial, Yu Yu two average yield per year were 520.9 kilograms and 518.3 kilograms. From 1985 to 1986, the corn cultivating group of our institute gave the high-yielding cultivation study of this variety and obtained 713.4 kilograms and 724.2 kilograms per mu, respectively, which created a record high yield of maize in our hospital. In 1986, Chengrui Village, Ruzhou Town, Runru County, with Yuyu No.2 as a high-yield demonstration area with an area of 2.2 mu, was approved by the Provincial Department of Agriculture and Animal Husbandry, Henan Agricultural University, Provincial Academy of Agricultural Sciences