Ecological seed production technique for good quality and high output of spring wheat

The invention relates to a hybrid seeds production process for high grade spring wheat comprising the steps of co-operating the high-quality seed through ecological meeting physiology and good practices, utilizing the first generation superiority by ecological hybrid seeds production through 60 days nursery sock growing, hand-operated extension of ear idiophase by 15-20 days within the average day temperature of 5-13 degree C, pregnancy of ear fundament with 90-120 granules, replanting into larger land, under the condition of daily average temperature below20 deg. C, naturally extending filling period. 本发明涉及一种春小麦优质高产生态制种新技术，包括用生态满足生理和良法配合良种：用生态制种一代优势利用取代目前尚难实现的春小麦杂种一代优势利用；通过60天育苗，在日均气温5℃-12℃范围里人工延长穗分化期15-20天，孕育具麦粒90-120粒的大穗原基；移栽大田后，在日均气温低于20℃条件下，自然延长灌浆期以提高千粒重20-30％。本发明技术难度小、成本低、时间短，增产效果显著；制种当年优质种子产量高达1000-1500千克/亩。