|Title:||栽培水稻遠緣雜交F1稔性在不同栽培期之變異||Other Titles:||Variation in F1 Fertility of Distantly Related Crosses among Cultivated Rice||Authors:||王毓華
|Keywords:||水稻;遠緣雜交;F1雜種稔性;Rice;Wide crosses;Fertility of F1 hybrids||Issue Date:||Sep-2001||Publisher:||國立中興大學農學院||Journal Volume:||50||Journal Issue:||3||Start page/Pages:||31-38||Source:||農林學報||Abstract:||
Variation in the F 1 ferti1ity of distant1y related crosses among cultivated rice was recognized as a heritable trait. In this study, eight reciprocal crosses of Silewah with Hayakogane, TP177, TKY3484 and TCMT, and six reciprocal crosses of TKY3484 with TCMT and TP177 were used as materials to understand the variation due to different planting dates. The pollen and spikelet fertility considered as index traits was evaluated.
There were the normal pollen fertility in the five parents and F1 hybrids of the reciprocal crosses of Silewah with Hayakogane, TP177 and TCMT. The pollens were sterile in the reciprocal crosses ofTKY3484 with TP177, but the partially sterile, maternal effect and significant difference among planting dates were observed in the reciprocal crosses of TKY3484 with Silewah and TCMT.
The spikelet fertility of the five parents were significantly different among planting dates. Except Hayakogane and TP177, the other parents had partial sterility in March and May. The spikelet fertility of the F1 existed the maternal and seasonal difference. The spikelets had partial sterility in the reciprocal F1 of TKY3484/TCMT and steri1ity in the reciprocal F1 of Silewah/Hayakogane, Silewah/TCMT, Silewah/TKY3484 and TKY3484/TP177.
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