ALi N h八 小 A 240 (h) () Figure I Pollen germination of O.alta and growth of hybrid ovaries.(a)Ovaries of Guang-lu-ai4 at 10 d after anthesis:(b)ovaries of Guang-lu-ai4/O.alta at 13-14 DAP:(c)bigger ovaries of Guang-lu-ai4/O.alta at 18-19 DAP:(d)smaller ovaries of Guang-lu-ai4/O.alta at 18-19 DAP:(e)ovaries of Liaojing944/0.alta at 11-13 DAP:(f)ovaries of L202/0.a/ta at 14 DAP:(g)ovaries of L202/0.alta at 20 DAP:(h)pollen germina tion and pollen tube growth of O.alta on the stigma of Guang-lu-ai4(1000x):(i)mature pollen grains of O.alta(100x).Bar=1 cm. Biology of plant reproductionBiology of plant reproduction 16