%0 Journal Article %A Bing LIN %A Ronghui FAN %A Yuhua CHEN %A Nengyan FANG %A Xiuxian YE %A Huaiqin ZHONG %A Minling HUANG %T Traits Analysis of Offsprings Mutated by 60Co-γ Radiation in Iris hollandica %D 2021 %R 10.11869/j.issn.100-8551.2021.10.2205 %J Journal of Nuclear Agricultural Sciences %P 2205-2213 %V 35 %N 10 %X

In order to explore distinguishing main characters of mutant obtained by 60Co-γ radiation in Iris hollandica Zhanchi, botanical agronomic traits of 4 stable mutants (5-7CBS, 7-10SLZ, 7-10QLS, 10ZLL) and their wild-type Zhanchi were evaluated, the similarities and differences of the main ornamental traits (flowers) were analyzed and compared according to test guidelines of Bulbous Irises. It was found that mutants and wild type were basically consistent in plant morphology, flowering period and growth period. Among the 40 traits investigated, there were significant differences in the characteristics of five pseudo-qualitative characteristics between mutants and wild type, such as groud color of upper side of blade in outer tepal, color of inner tepal, color of upper side in bridge, color of upper side in crest, and groud color of upper side of claw in outer tepal. Another 35 character were highly similar in corresponding phenotype and values. The results showed that flower color of Iris hollandica has great genetic improvement potetiality with radiation breeding. It is speculated that flower color variation may be an important indicator for distinguishing mutants from wild type. According to the expression state of flower color, variation of flower color can be divided into four types: strengthening type, wild type, weakening type and full variant type. This study can provide basic data and reference for breeding new varieties in Iris hollandica.

%U https://www.hnxb.org.cn/EN/10.11869/j.issn.100-8551.2021.10.2205