Pollen Viability, Pistil Receptivity, and Embryo Development in Hybridization of Nelumbo nucifera Gaertn
Seed set is usually low and differs for different crosses of flower lotus (Nelumbo nucifera Gaertn.). The reasons remain unknown, and this has a negative impact on lotus breeding. To determine the causes, we carried out two crosses of flower lotus, that is, “Jinsenianhua” × “Qinhuaihuadeng” and “Qin...
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| Language: | English |
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Wiley
2012-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/2012/678706 |
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| author | Yan-Li Wang Zhi-Yong Guan Fa-Di Chen Wei-Min Fang Nian-Jun Teng |
| author_facet | Yan-Li Wang Zhi-Yong Guan Fa-Di Chen Wei-Min Fang Nian-Jun Teng |
| author_sort | Yan-Li Wang |
| collection | DOAJ |
| description | Seed set is usually low and differs for different crosses of flower lotus (Nelumbo nucifera Gaertn.). The reasons remain unknown, and this has a negative impact on lotus breeding. To determine the causes, we carried out two crosses of flower lotus, that is, “Jinsenianhua” × “Qinhuaihuadeng” and “Qinhuaihuadeng” × “Jinsenianhua” and pollen viability, pistil receptivity, and embryo development were investigated. The pollen grains collected at 05:00-06:00 hrs had the highest viability, and the viabilities of “Jinsenianhua” and “Qinhuaihuadeng” were 20.6 and 15.7%, respectively. At 4 h after artificial pollination, the number of pollen grains germinating on each stigma reached a peak: 63.0 and 17.2 per stigma in “Jinsenianhua” × “Qinhuaihuadeng” and “Qinhuaihuadeng” × “Jinsenianhua”, respectively. At 1 d after artificial pollination, the percentages of normal embryos in the two crosses were 55.0 and 21.9%, respectively; however, at 11 d after pollination, the corresponding percentages were 20.8 and 11.2%. Seed sets of the two crosses were 17.9 and 8.0%, respectively. The results suggested that low pistil receptivity and embryo abortion caused low seed set in “Qinhuaihuadeng” × “Jinsenianhua”, whereas low fecundity of “Jinsenianhua” × “Qinhuaihuadeng” was mainly attributable to embryo abortion. |
| format | Article |
| id | doaj-art-dba34d517870418faa32b77d2c93c5be |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-dba34d517870418faa32b77d2c93c5be2025-08-20T03:24:21ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/678706678706Pollen Viability, Pistil Receptivity, and Embryo Development in Hybridization of Nelumbo nucifera GaertnYan-Li Wang0Zhi-Yong Guan1Fa-Di Chen2Wei-Min Fang3Nian-Jun Teng4College of Horticulture, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Horticulture, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Horticulture, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Horticulture, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Horticulture, Nanjing Agricultural University, Nanjing 210095, ChinaSeed set is usually low and differs for different crosses of flower lotus (Nelumbo nucifera Gaertn.). The reasons remain unknown, and this has a negative impact on lotus breeding. To determine the causes, we carried out two crosses of flower lotus, that is, “Jinsenianhua” × “Qinhuaihuadeng” and “Qinhuaihuadeng” × “Jinsenianhua” and pollen viability, pistil receptivity, and embryo development were investigated. The pollen grains collected at 05:00-06:00 hrs had the highest viability, and the viabilities of “Jinsenianhua” and “Qinhuaihuadeng” were 20.6 and 15.7%, respectively. At 4 h after artificial pollination, the number of pollen grains germinating on each stigma reached a peak: 63.0 and 17.2 per stigma in “Jinsenianhua” × “Qinhuaihuadeng” and “Qinhuaihuadeng” × “Jinsenianhua”, respectively. At 1 d after artificial pollination, the percentages of normal embryos in the two crosses were 55.0 and 21.9%, respectively; however, at 11 d after pollination, the corresponding percentages were 20.8 and 11.2%. Seed sets of the two crosses were 17.9 and 8.0%, respectively. The results suggested that low pistil receptivity and embryo abortion caused low seed set in “Qinhuaihuadeng” × “Jinsenianhua”, whereas low fecundity of “Jinsenianhua” × “Qinhuaihuadeng” was mainly attributable to embryo abortion.http://dx.doi.org/10.1100/2012/678706 |
| spellingShingle | Yan-Li Wang Zhi-Yong Guan Fa-Di Chen Wei-Min Fang Nian-Jun Teng Pollen Viability, Pistil Receptivity, and Embryo Development in Hybridization of Nelumbo nucifera Gaertn The Scientific World Journal |
| title | Pollen Viability, Pistil Receptivity, and Embryo Development in Hybridization of Nelumbo nucifera Gaertn |
| title_full | Pollen Viability, Pistil Receptivity, and Embryo Development in Hybridization of Nelumbo nucifera Gaertn |
| title_fullStr | Pollen Viability, Pistil Receptivity, and Embryo Development in Hybridization of Nelumbo nucifera Gaertn |
| title_full_unstemmed | Pollen Viability, Pistil Receptivity, and Embryo Development in Hybridization of Nelumbo nucifera Gaertn |
| title_short | Pollen Viability, Pistil Receptivity, and Embryo Development in Hybridization of Nelumbo nucifera Gaertn |
| title_sort | pollen viability pistil receptivity and embryo development in hybridization of nelumbo nucifera gaertn |
| url | http://dx.doi.org/10.1100/2012/678706 |
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