摘要
2016-2017年"第三次全国农作物种质资源普查与收集行动"江苏调查队收集到江苏41个县市区地方高粱资源104份,并对15个农艺性状进行调查,利用相关系数、聚类分析研究了高粱资源的遗传多样性。结果表明:高粱资源农艺数量性状变异类型丰富。穗粒重与株高、穗长、节数、百粒重、抽穗期、地上部鲜重呈极显著正相关;地上部鲜重与株高、节数、抽穗期呈极显著正相关,与穗柄长呈极显著负相关。聚类分析将该批高粱资源划分为7个类群,第Ⅰ类群为甜高粱品种,是糖用与饲用材料;第Ⅱ类群穗很长,为工艺专用材料;第Ⅲ类群单穗与百粒重较高,是粒用、糖用兼型材料;第Ⅳ类群植株矮,节数少,早熟,是粒用、饲用及工艺用兼型材料;第Ⅴ类群偏野生型材料,可粒用、饲用及工艺用,但产量性状表现较差;第Ⅵ类群株高、穗长、抽穗期、地上部鲜重适中,是粒用、糖用、工艺用及饲用兼型材料;第Ⅶ类群植株矮、百粒重高、裸粒、生育期较早,是粒用材料。综合表型筛选出9份具有优良与特异性状的种质资源。总之,江苏地方高粱资源具有丰富的多样性,蕴藏着较多的可利用遗传变异,在高产、早熟、穗型和籽粒大小等方面存在可供育种和生产利用的优异资源。
Under the frame of the Third National Survey and Collection Action on Crop Germplasm Resources,104 sorghum germplasm resources were collected from 41 counties of Jiangsu from 2016 to 2017. Fifteen agronomic traits were investigated for the genetic diversity analysis of sorghum germplasm resources. The variation types of agronomic quantitative traits of sorghum resources are rich. The very significant positive correlation was detected between grain weight and any of plant height,spike length,node number,100 grain weight,heading stage and aboveground fresh weight. The aboveground fresh weight was very-significant positively correlated with any of plant height,node number and heading stage,while negatively correlated with stalk length. The cluster analysis suggested seven groups of the sorghum germplasm accessions. Especially,the first group included sweet sorghum accessions,which are used for sugar and forage;the second group included the accessions with a long spike,which are the special materials for craft;the third group showing higher weight of single spike and 100 grains,represented the accessions with the end-use for grain and sugar;the accessions from the fourth group often showed short,few nodes and early maturing,and they are used for grain,forage and craft;the fifth group are wild accessions,which showed lower yield and are potentially are used for grain,forage and craft;the accessions in sixth group,which often showed moderate plant height,spike length,heading stage and aboveground fresh weight,are used for grain,sugar,craft and forage;the accessions in seventh group,often with short plant,high 100 grain weight,bare grain,and early growth period,are used for grain production. Out of that,nine germplasm resources with excellent and special characters were identified. In summary,the sorghum germplasm accessions from Jiangsu Province represented abundant genetic diversity,especially including several excellent germplasm resources with any of high yield,early maturity,ear type and grain weight can be used potentially for breeding and industrial production.
作者
李春宏
狄佳春
颜伟
郭文琦
朱银
殷剑美
王立
韩晓勇
蒋璐
张培通
LI Chun-hong;DI Jia-chun;YAN Wei;GUO Wen-qi;ZHU Yin;YIN Jian-mei;WANG Li;HAN Xiao-yong;Jiang Lu;ZHANG Pei-tong(Institute of Industrial Crops Jiangsu Academy of Agricultural Sciencese,Nanjing 210014;Institute of Crop Germplasm and Biotechnology,Jiangsu Academy of Agricultural Science,Nanjing 210014)
出处
《植物遗传资源学报》
CAS
CSCD
北大核心
2020年第5期1175-1185,共11页
Journal of Plant Genetic Resources
基金
第三次全国农作物种质资源普查与收集行动(111821301354052028)
高粱遗传与种质创新山西省重点实验室开放研究基金(2018K-01)~~
关键词
江苏
高粱
种质资源
多样性
聚类分析
Jiangsu
sorghum
germplasm resources
diversity
cluster analysis
