天仙果的繁殖生物学研究

Reproductive biology of Ficus erecta Thunb

研究了天仙果 (F icuserecta Thunb. var. beecheyana (Hook. et Arn.) King)的繁殖生物学特性。春季雌株不形成雌花序 ,雄瘿株的花序中雄花也不完全发育 ,只有瘿花发育良好 ,这些瘿花为培育传粉者 (Blastophaga sp.)提供了必需的繁殖及发育场所 ;夏秋季是天仙果自身的繁殖时期 ,雌花序及雄花花药发育良好。雌花期与雄花期每年在 3～ 4月份及 6～ 8月份相遇。通常进入花序传粉或产卵的小蜂只有 1～ 2只。对天仙果隐头花序的配置及花的解剖研究还表明 。

In the presentstudy the featuares of reproductive biology of Ficuserecta Thunb.was investigat- ed. In spring,there was no female syconia or well developed male flowers,but full of gall flowers which acted as necessary reproductive and developmental sites for pollinators( Blastophaga sp.) ;whereas,in summer to autumn,itwas the reproductive period of fig trees when female syconia and well developed an- thers appeared.The female and male phases encountered in March to April and in June to August.Usual- ly,there were 1～ 2 wasps enter individual syconium for pollination or oviposition. It was showed thatthe reproductive biology of this fig species incarnated the diversity of fig- fig wasp reproductive strategy in mu- tualism.