Hybridization method of wild paddy rice
A hybrid method and wild rice technology, applied in the field of hybrid breeding, can solve the problems of large pollen amount, small anthers of cultivated rice, asynchronous flowering and pollen time, etc., and achieve the effects of large quantity and high success rate.
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Embodiment 1
[0042] Embodiment 1, a kind of hybridization method of wild rice
[0043] The wild rice Oryza rufipogon was used as the female parent, and the wild rice Oryza nivara was used as the male parent as experimental materials for hybridization. Specific steps are as follows:
[0044] 1. Germination materials in batches
[0045] The wild rice O.rufipogon is a photosensitive material. The wild rice O.rufipogon needs at least about 80 days of vegetative growth before flowering under the stimulation of short days; the wild rice O.nivara is not sensitive to photoperiod, and the flowering period is 60- For 80 days, photoperiodic stimulation is not required. The flowering period of the wild rice O. rufipogon shall prevail. In order to ensure that the two flowering periods meet, the planting and processing shall be carried out as follows:
[0046] 1. Wild rice O.rufipogon
[0047] In Hainan, the wild rice O.rufipogon was planted from May to mid-June. After germination, it was transplant...
Embodiment 2
[0068] Embodiment 2, a kind of hybridization method of wild rice
[0069] The cultivated rice Nipponbare was used as the female parent, and the wild rice O. nivara was used as the male parent as experimental materials for hybridization. Specific steps are as follows:
[0070] 1. Germination materials in batches
[0071] Both the cultivated rice Nipponbare and the wild rice O. nivara are not sensitive to photoperiod, and the flowering period is 60-80 days without photoperiod stimulation. The flowering period of the wild rice O.nivara shall prevail. In order to ensure that the two flowering periods meet, the planting and processing shall be carried out as follows:
[0072] 1. Wild rice O.nivara
[0073] In Hainan, the wild rice O.nivara was planted in late July. After germination, it was transplanted into a paddy field. At the seedling stage, attention should be paid to insect and rodent control and routine management. During the flowering stage, the whole plant or more than ...
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