Characterization of Korean Wheat Line with Long Spike. I. Agronomic Traits and Genetic Variations
2015
Son, J.H., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Kang, C.S., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Cheong, Y.K., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Kim, K.H., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Kim, H.S., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Park, J.C., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Kim, K.H., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Kim, B.K., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Park, C.S., Chonbuk National University, Jeonju, Republic of Korea
One hundred sixty four wheat (Triticum aestivum L.) lines expressing the long spike were developed by the National Institute of Crop Science, Rural Development Administration. Six of 11 genes showed allelic variation among 164 lines and they were highly related to yield traits containing spike and kernel number, kernel length, 1000-kernel weight and grain yield. Analysis of allelic variation of each gene showed high correlation between allelic variation and agricultural characteristics. Coefficient of correlation between culm length and spike length was the highest 0.436. The heading date of the lines expressed Vrn-D1 allele was late and the lines expressed Vrn-D1 allele had longer spike length and higher number of kernel per spike than other lines. There was no significant difference in agronomic characteristics of analysis of Vrn-B1. Ppd-D1b was related to heading date and higher number of spike/m2. Ppd-D1a was corresponded to number of kernel per spike and 1000-kernel weight. Three haplotypes, Hap-L, Hap-6A-G and TaCwi-A1a, were related to 1000-kernel weight.
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