@article{oai:repository.naro.go.jp:00001421,
 author = {村田, 奈芳 and MURATA, Naho and 篠田, 浩一 and SHINODA, Koichi},
 journal = {北海道農業研究センター研究報告, Research BUlletin of the NARO Hokkaido Agricultural Research Center},
 month = {Jul},
 note = {Interspecific hybridization in Alstroemeria is very difficult due to cross-incompatibility. This investigation was conducted to obtain basic information about pollen tube growth and unravel the fertilization barriers observed in incompatible cross combinations. Interspecific crosses were performed between four Alstroemeria species used as female plants and twelve Alstroemeria species used as male plants. In these experiments, pollen tube elongation and entry into ovules were observed 24 hours after pollination. When A. magenta was used as the female plant, pollen grains of all other species germinated well and pollen tubes reached the micropyle in all cross combinations, with 28.3% of the ovules being fertilized. When A. magnifica was used as the female plant, germination of most of the pollen grains of other species was inhibited on the stigma or penetration into the stigma did not occur. Fertilization occurred only in the cross combination with A. versicolor. Only O.1% of the ovules were fertilized. When A. pulchrawas used as the female plant, germination of pollen grains varied depending on the species, and pollen tube growth was inhibited in the upper or middle region of the styles in eight of the pollen-donor combinations. Fertilization occurred in three cross combinations between A. ligtu, A. magenta and A. magnifica, with 1.5% of the ovules being fertilized. When A. inodora was used as the female plant, pollen grains of other species germinated well and pollen tubes entered ovules in eight of the eleven crosses, with 10.8% of the ovules being fertilized. Pollen tube growth and entry into ovules were observed every four hours after pollination of A. pulchra styles at 20℃ in constant light. Pollen tubes of self-pollinated plants reached the ovaries at 12 hours after pollination. Some of the pollen tubes entered the micropyle and 20.5% of the ovules were fertilized at 48 hours after pollination. The growth of most pollen tubes of an interspecific cross (A. pulchra×A. magenta) was inhibited on the stigma or the upper region of the styles. At 16 hours or more after pollination, very few pollen tubes had reached the ovules and only 0.3 - 1.9% of the ovules were fertilized.},
 pages = {1--13},
 title = {アルストロメリア種間交雑における花粉管伸長と受精胚珠率},
 volume = {200},
 year = {2013},
 yomi = {ムラタ, ナホ and シノダ, コウイチ}
}