Morphological diversity of hulless barley accessions from Qinghai-Tibetan Plateau

doi:10.3969/j.issn.1004-1524.2019.07.02

›› 2019, Vol. 31 ›› Issue (7): 1037-1044.DOI: 10.3969/j.issn.1004-1524.2019.07.02

• Crop Science • Previous Articles Next Articles

Morphological diversity of hulless barley accessions from Qinghai-Tibetan Plateau

XU Xiao, LUAN Haiye, ZHANG Yinghu, LU Jian, QIAO Hailong, ZANG Hui, YANG Hongyan, SHEN Huiquan^*

Jiangsu Coastal Agricultural Research Institute, Yancheng 224001, China

Received:2019-02-13 Online:2019-07-25 Published:2019-08-07

Abstract

Abstract: To study the genetic diversity of hulless barley accessions from Qinghai-Tibetan Plateau and improve their utilization efficiency, the morphological diversity of 86 hulless barley accessions from Qinghai-Tibetan Plateau was identified in this study. The results showed that genetic diversity of hulless barley accessions was ample, morphological diversity index of main panicle length was the highest with the value of 2.05. Plant type had the lowest genetic diversity index with the value of 0.47. In general, genetic morphological index of quantitative traits were greater than those of the quality traits. The tested materials were divided into four groups by cluster analysis. Barley accessions in group Ⅰ were two-rowed, high plant height, big spike and big grain. Barley accessions in group Ⅱwere short plant height, multi grain and long spike. Barley accessions in group Ⅲ were short panicle. Barley accessions in group Ⅳ were high plant height and multi grain. Based on the principal components, comprehensive evaluation of various materials was carried out, seven principal components were extracted to summarize most of the biological information of all traits. Excellent germplasm resources suitable for growth in Jiangsu Province were screened out. This study provided a theoretical basis for the collection and utilization of hulless barley accessions.

Key words: Qinghai-Tibet Plateau, hulless barley, germplasm resources, morphological diversity

CLC Number:

S512.3

XU Xiao, LUAN Haiye, ZHANG Yinghu, LU Jian, QIAO Hailong, ZANG Hui, YANG Hongyan, SHEN Huiquan. Morphological diversity of hulless barley accessions from Qinghai-Tibetan Plateau[J]. , 2019, 31(7): 1037-1044.

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Morphological diversity of hulless barley accessions from Qinghai-Tibetan Plateau

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