Agronomy, Volume 11, Issue 12
2021 December - 228 articles
Cover Story: Tetraploid plants are very useful in breeding for improvements in fruit quality and enhancement of stress tolerances. Satsuma mandarin (Citrus unshiu Marcow.) is an economically important fruit crop in Japan; however, global warming is negatively affecting the fruit quality of this species in recent years, resulting in problems such as coloring disorder, rind puffing and bland taste. In this study, a morphological investigation and a reproductive assessment of autotetraploid Satsuma mandarin were carried out. Compared to the diploid, the tetraploid had significantly thick and round leaves, large flowers and pollen grains. The tetraploid had a higher content of carotenoids in the flavedo than diploid, and the rind color was much better. Pollen fertility of the tetraploid was high compared with the diploid, so the triploid progenies could be obtained in crossing with diploid cultivars. View this paper - Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
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