大豆新品种豫豆二号的选育及其综合评价

New Soybean Variety-Yudou No.2, Its Breeding and Assessment

大豆新品种豫豆二号是用“郑7104×滑县大绿豆”进行有性杂交、系谱法选育而成,具有丰产、稳产、优质、适应性广、抗病性强、耐肥、抗倒和对光温反应迟钝的特点.在河南省以及相邻地区种植,生育期100—105天,麦田套种和夏播皆可.本文利用一年多点和多年多点试验资料,通过方差分析、模糊数学评判等综合评价了豫豆二号的丰产性、稳产性和抗病、抗倒性能,进一步探讨了豫豆二号高产的生物学特性和丰产栽培技术要点.

The new soybean variety Yudon No. 2 is derived from Zheng 7104? Hualudou by pedigree selection. It is characterized by stable and high yield, fine quality,wide adaptability, and resistance to diseases and lodging. This variety is sensitive to fertilizer and water but not sensitive to light and temperature. The growing period is 100-105 days. It is suitable for in-terplanting with wheat or for summer sowing.The properties of Yadou No.2 in high and stable yield,and resistance to diseases and lodging were judged by variance analysis and fussy multi-assessment using the data collected from a number of sites in one year and several years. The biological characters and the main points of cultural practices of Yudou No.2 for high yield was also studied.