安徽省薏苡种质资源形态特征和产量性状评价

Morphological Feature and Yield Traits of Coix lacryma-jobi L. Genetic Resources in Anhui Province

[目的]筛选出适宜安徽种植的优良资源。[方法]采用随机排列的方法,对安徽不同地区收集的8份薏苡种质资源的生育期、植株形态特征、籽粒形态特征和产量性状进行比较分析。[结果]8份薏苡种质资源的生育期为159~183 d,株高为162.1~234.3 cm,主茎直径在4.45~5.84 mm,主茎叶片数为10~16,单株有效穗数为6~14,结实率为73.21%~94.24%,百粒重为8.252~27.620 g,籽粒厚度为5.35~8.54 mm,籽粒长宽比为1.23~1.77;株型主要以紧凑型为主;叶色均为浅绿色,苗期叶色主要以深绿色为主;种子有灰色、白色、灰褐色、黑色4种颜色类型。[结论]4号和6号薏苡资源综合性状优良,具有较高的潜在利用价值。

[Objective]To select the excellent resources suitable for planting in Anhui Province.[Method]Using the method of random permutation,the growth period,plant morphological characteristics and yield characters of 8 Coix lacryma-jobi L.genetic resources collected from different areas in Anhui Province were compared and analyzed.[Result]The growing stages of C.lacryma-jobi genetic resources ranged from 159 to 183 d;plant height ranged from 162.1 to 234.3cm;the main stem diameter ranged from 4.45 to 5.84 mm;the number of leaves in the main stem ranged from 10 to 16;the number of effective panicles per plant ranged from 6 to 14;the seed setting rate ranged from 73.21%to 94.24%;the 100-seeds weights ranged from 8.252 to 27.620 g;the grain thickness ranged from 5.35 to 8.54 mm;and the ratio of length to width ranged from 1.23 to 1.77.The plant type was mainly compact,the leaf color was light green,the seedling leaf color was mainly dark green,and the seed color was gray,white,gray brown,black.[Conclusion]The preliminary evaluation showed that C.lacryma-jobi No.4 and No.6 had better comprehensive characters and higher potential utilization value.