摘要
[目的]探究11份紫花苜蓿种质在北疆地区的农艺性状表现,为筛选出适宜当地种植的紫花苜蓿品种及优异的育种材料提供科学依据.[方法]通过观测11份紫花苜蓿种质的生育期和产量相关的数量性状指标,利用灰色关联度分析进行综合评价.[结果]11份紫花苜蓿品种单株干重为0.22～0.52 kg/株;现蕾期株高38.43～62.06 cm;初花期株高65.60～73.38 cm;茎粗3.73～5.65 mm;分枝数3.67～6.25个;叶长22.56～29.54 mm;叶宽10.52～13.39 mm;茎叶比0.71～1.42.在初花期,康赛I品种株高最高、叶宽最宽、分枝数最多、茎叶比最低;BJMX品种茎最粗、单株产量最高;牧歌品种叶长最长.[结论]紫花苜蓿品种康赛I、BJMX、标靶、SWMX加权关联度较高,在北疆地区的生产性能及综合能力较优,康赛I、标靶在此次试验中表现良好,是适宜在北疆地区推广种植的紫花苜蓿品种;BJMX、SWMX可以作为高产育种材料进一步研究.
Abstract
[Objective]In order to investigate the agronomic performance of 11 alfalfa(Medicago sativa)germplasms in northern Xinjiang,and to provide scientific basis for selecting suitable alfalfa varieties and excellent breeding materials for local planting.[Methods]The quantitative traits related to growth period and yield of 11 germplasms were observed,followed by evaluation by grey correlation analysis.[Results]The dry weight per plant of 11 alfalfa varieties was 0.22～0.52 kg/plant,the plant heights at squaring and initial flowering stage were 38.43～62.06 cm and 65.60～73.38 cm,respectively;the stem diameter was 3.73～5.65 mm,branching number was 3.67～6.25,leaf length was 22.56～29.54 mm,leaf width was 10.52～13.39 mm,and the ratio of stem to leaf ratio was 0.71～1.42.At the initial flowering stage,Kangsai I varieties had the highest plant height,the widest leaf width,the largest number of branches and the lowest stem/leaf ratio,BJMX varieties had the largest stem diameter and the highest yield per plant,and Muge varieties had the longest leaf length.[Conclusion]Kangsai I,BJMX,Target and SWMX varieties had high weighted correlation,the production performance and comprehensive ability of which were good in northern Xinjiang.Kangsai I and Target varieties performed well in this experiment,and were suitable for being promoted and planted in northern Xinjiang,while BJMX and SWMX varieties could be used as breeding materials for high yield for further study.
国家科技期刊平台
NSTL
万方数据