麦洼老芒麦种子生产比较试验报告
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摘要
麦洼老芒麦具有农艺性状优良,有效分蘖多,抗倒伏能力强,较高且稳定的生产性能,2010年成功申报国家草品种区域试验。为了评价其种子生产性能,2011~2014年在进行国家草品种区域试验的同时,在四川省阿坝州红原县四川省草原科学研究院牧草试验基地对三份材料(麦洼老芒麦与对照阿坝老芒麦、川草2号老芒麦)进行了种子生产比较试验研究。连续三年试验结果表明:40cm行距条播、播种量22.5kg/hm~2、播种第二年后每年在返青至分蘖期施复合肥120kg/hm~2的栽培管理条件下,麦洼老芒麦成熟期株高能达到126.9cm,生育天数144d,基本与对照品种一致;麦洼老芒麦种子产量高达1 802 kg/hm~2,比对照阿坝老芒麦增产13.56%~33.65%,比对照川草2号老芒麦增产26.78%~59.66%。经方差分析,麦洼老芒麦种子产量均显著高于对照品种。因此,麦洼老芒麦具有很高的种子生产能力。
Elymus sibiricus cv. Maiwa has excellent agronomic characters,more reproductive tiller,strong lodging resistance,high and stable production performance,which successfully applied for regional trials of national grass variety t in 2010. In order to evaluate its seed production performance,while E. sibiricus cv. Maiwa got into regional trials of national grass variety in 2011 ~ 2014,seed production comparative test of E. sibiricus cv. Maiwa was also carried out in the forage experiment base of Sichuan Academy of Grassland Sciences,located in Hongyuan County,ABa Prefecture of Sichuan Province. Two E. sibiricus of ABa and Chuancao No. 2 was used as the control. Three varieties were all planted according to row spacing of 40 cm and sowing rate of 22. 5 kg/hm~2. The results of three consecutive years showed that:After second year of sowing,compound fertilizer of 120 kg/hm~2 were applied every year during the period from greening to tillering. Plant height of E. sibiricus cv. Maiwa reached 126. 9 cm and its breeding days were 144 days,which was basically consistent with two control varieties. The seed yield of E. sibiricus cv. Maiwa was as high as 1 802 kg/hm~2,which increased by 13. 56% ~33. 65% compared with ABa variety,and by 26. 78% ~ 59. 66% compared with No. 2 Chuancao variety. The analysis of variance showed that seed yield of E. sibiricus cv. Maiwa was significantly higher than two control varieties. Therefore,E. sibiricus cv. Maiwa has a high seed production capacity.
Elymus sibiricus cv. Maiwa has excellent agronomic characters,more reproductive tiller,strong lodging resistance,high and stable production performance,which successfully applied for regional trials of national grass variety t in 2010. In order to evaluate its seed production performance,while E. sibiricus cv. Maiwa got into regional trials of national grass variety in 2011 ~ 2014,seed production comparative test of E. sibiricus cv. Maiwa was also carried out in the forage experiment base of Sichuan Academy of Grassland Sciences,located in Hongyuan County,ABa Prefecture of Sichuan Province. Two E. sibiricus of ABa and Chuancao No. 2 was used as the control. Three varieties were all planted according to row spacing of 40 cm and sowing rate of 22. 5 kg/hm~2. The results of three consecutive years showed that:After second year of sowing,compound fertilizer of 120 kg/hm~2 were applied every year during the period from greening to tillering. Plant height of E. sibiricus cv. Maiwa reached 126. 9 cm and its breeding days were 144 days,which was basically consistent with two control varieties. The seed yield of E. sibiricus cv. Maiwa was as high as 1 802 kg/hm~2,which increased by 13. 56% ~33. 65% compared with ABa variety,and by 26. 78% ~ 59. 66% compared with No. 2 Chuancao variety. The analysis of variance showed that seed yield of E. sibiricus cv. Maiwa was significantly higher than two control varieties. Therefore,E. sibiricus cv. Maiwa has a high seed production capacity.
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