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Pollination Biology Research of Two Primulina Species (Gesneriaceae)(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年06
Page:
64-69
Research Field:
Publishing date:

Info

Title:
Pollination Biology Research of Two Primulina Species (Gesneriaceae)
Author(s):
HUANG Shilian1; 2; WANG Ouwen3; 4; WEN Fang2; 4
(1.College of Life Sciences，South China Agricultural University，Guangzhou，Guangdong 510642；2.Guangxi Institute of Botany，Guangxi Zhuang Autonomous Region and the Chinese Academy of Science，Guilin，Guangxi 541006；3.College of Life Sciences，Anhui Normal University，Wuhu，Anhui 241000；4.Gesneriad Conservation Center of China，Guilin，Guangxi 541006)
Keywords:
breeding system; pollination biology; Primulina lijiangensis; Primulina cordata
PACS:
-
DOI:
10.11937/bfyy.201606017
Abstract:
Pollination and breeding system of two species of Primulina (Gesneriaceae)，P.lijiangensis B.Pan & W.B.Xu and P.cordata W.T.Wang，native to Yangshuo，Guangxi，were compared in this study.Flowering biology，pollen activity and stigma receptivity，P/O value，flower visitors and their behavior，outcrossing index (OCI)，and breeding system were determined.The results showed that the duration of the flowering period of two species was about 45 days，the latter one bloom earlier，the former had a shorter single flower period，smaller flower and more flowers in one inflorescence；the mean P/O value was respectively 290.85±5.34 and 331.76±13.08.The two species were protandrous and there was spatial separation between stigma and anthers，these could prevent self-pollination，but self-compatibility.Pollinator (Trigona ventralis) played a very important role in the process of pollination，the same pollinator had different behavior in different species.Their OCI≥4，xenogamy，self-compatibility，there were no agamospermy，natural setting lower than artificial setting rate，the former species’s natural setting was higher than the lateral one.No significant difference in the natural pollination maturing rate of the two species was found.

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Last Update: 2016-05-03