芝麻繁育特性研究Ⅳ：海南南繁芝麻的天然异交率

利用显/隐性单基因控制的单花/三花性状为标记,对海南南繁芝麻的天然异交率进行了测定。结果显示：邻近异花粉源的芝麻的天然异交率为4.44%~4.76%;天然异交率与异花粉源距离存在极显著的负相关（r=-0.626^＊＊）,随着距离的增大,天然异交率不断下降,大约在距离异花粉源15~20行（6~8 m）处未检测到天然异交率;不同种植方向的天然异交率存在一定的差异。...

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Published in江西农业学报 Vol. 29; no. 11; pp. 17 - 20
Main Author 孙建 颜廷献 乐美旺 饶月亮 颜小文 周红英
Format Journal Article
LanguageChinese
Published 江西省农业科学院 作物研究所/国家油料改良中心 南昌分中心/江西省油料作物生物学重点实验室,江西 南昌,330200 2017
Subjects
南繁
天然异交率
海南
繁育特性
芝麻
南繁
Winter multiplication
Breeding characteristics
繁育特性
天然异交率
海南
芝麻
Spontaneous outcrossing rate
Hainan
Sesame
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Summary:利用显/隐性单基因控制的单花/三花性状为标记,对海南南繁芝麻的天然异交率进行了测定。结果显示：邻近异花粉源的芝麻的天然异交率为4.44%~4.76%;天然异交率与异花粉源距离存在极显著的负相关（r=-0.626^＊＊）,随着距离的增大,天然异交率不断下降,大约在距离异花粉源15~20行（6~8 m）处未检测到天然异交率;不同种植方向的天然异交率存在一定的差异。
Bibliography:SUN Jian, YAN Ting-xian, YUE Mei-wang , RAO Yue-liang, YAN Xiao-wen, ZHOU Hong-ying （Crop Research Institute, Jiangxi Academy of Agricultural Sciences / Nanchang Branch, National Center of Oil Crop Improvement / Jiangxi Provincial Key Laboratory of Oil Crop Biology, Nanchang 330200, China）
36-1124/S
Using the mono-floral/tri-floral character controlled by dominant/recessive single gene as marker,we measured the spontaneous outcrossing rate（ SOR） of sesame（ Sesamum indicum） in winter multiplication in Hainan. The results showed that： the SOR of sesame adjacent to different pollen sources was 4.44% ~ 4.76%,and it was very significantly negatively correlated with the distance from different pollen source（ r =-0. 626^＊＊）; the SOR of sesame gradually decreased with the increase in the distance from different pollen source,and it could not be detected beyond 15 ~ 20 lines（ 6 ~ 8 m） from different pollen sources; there was a certain difference in SOR among sesame plants planted in different directions.
Sesame ; Breedin
ISSN:1001-8581
DOI:10.19386/j.cnki.jxnyxb.2017.11.04