The morphological characteristics of Zoysia minima collected in New Zealand and its cross compatibility with Zoysia species grown in Japan
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概要
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<I>Zoysia minima</I>, indigenous plant to New Zealand, is expected to produce fine turf, but its morphological characteristics and cross compatibility with other <I>Zoysia</I> species is unknown. The leaf length and width of <I>Z. minima</I> are smaller than <I>Z. tenuifolia</I>. The transverse section of leaf blade indicates a C-type of leaf edge with a large vascular bundle (scissor-type at both sides) . This species has 1 floret for 1 spike unlikely to other <I>Zoysia</I> species. The time of flowering was mainly observed from early November to early December, which is similar to that of <I>Z. tenuifolia</I>. This species is protogyny as well as other <I>Zoysia</I> species, and there seems to be a high possibility of self pollination, since the anther appears before the pistil changes to brown. In addition, the chromosome number of this species was 2<I>n</I>=40 as in other <I>Zoysia</I> species. Since pollen of <I>Z. japonica</I> and <I>Z. matrella</I> germinated on stigma of <I>Z. minima</I>, they were cross compatible. The 10 hybrid plants were obtained in crossing between <I>Z. minima</I> and 3 species of <I>Zoysia</I>.
- 日本芝草学会の論文
日本芝草学会 | 論文
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