XING Guang-nan,ZHAO Tuan-jie,WANG Jian-ren,et al.Variation of Leaf Pubescence Status and Its Association with Resistance to Bean Pyralid(Lamprosema indicata Fabricius)in Soybean[J].Soybean Science,2009,28(05):768-773.[doi:10.11861/j.issn.1000-9841.2009.05.0768]
大豆叶茸毛着生状态的变异及其与豆卷叶螟抗性的相关性
- Title:
- Variation of Leaf Pubescence Status and Its Association with Resistance to Bean Pyralid(Lamprosema indicata Fabricius)in Soybean
- Keywords:
- Soybean; Pubescence status; Lamprosema indicata(Fabricius); Resistance to insects; Selection effect
- 文献标志码:
- A
- 摘要:
- 大量观察发现大豆叶柄茸毛着生状态有别于叶片茸毛着生状态。根据对392份来自全国各生态区的代表性样本的观察,将叶片茸毛着生状态分为匍匐、半匍匐和斜立3类,将叶柄茸毛着生状态分为紧贴、倾斜和直立3类。发现茸毛着生状态与地理来源有关,纬度增大,斜立型叶片茸毛和直立型叶柄茸毛有增加的趋势。叶片和叶柄茸毛着生状态存在极显著相关性,χ-2为164.72。叶片茸毛着生状态和叶柄茸毛着生状态与豆卷叶螟抗性等级间也存在极显著相关,χ2分别为187.46和123.44。匍匐、半匍匐叶片茸毛和紧贴、倾斜叶柄茸毛是抗虫性状,而斜立叶片茸毛和直立叶柄茸毛是感虫性状。卷叶率、虫包在叶片和叶柄茸毛着生状态间都存在显著差异。匍匐型、半匍匐型叶片茸毛能分别降低32.25%和3.72%的虫包数,51.37%和6.89%的卷叶率。紧贴型、倾斜型叶柄茸毛能分别降低25.93%和46.40%的虫包数,42.20%和62.81%的卷叶率。大豆叶茸毛着生状态可作为豆卷叶螟抗性的指示性状,用于大豆抗豆卷叶螟的种质筛选和育种。
- Abstract:
-
It was found that the pubescence status on leaf blades was different from that on leaf petioles.According to a survey on 392 cultivars from all the six eco-regions of soybeans in China,the status of pubescence on leaf blade was classified as prostrate,semi-prostrate and skewed and that on leaf petiole as appressed,semi-appressed and erect.It was found that the ratio of skewed leaf blade pubescence and erect leaf petiole pubescence increased along with the increase of geographic latitude,indicating the status of leaf pubescence being related with their geographic sources.Significant correlations were detected between status of leaf blade pubescence and that of leaf petiole pubescence between status of leaf blade pubescence and resistance to bean pyralid(Lamprosema indicate),and between status of leaf petiole and resistance to bean pyralid,with χ2values as 164.72,187.46 and 123.44,respectively.There showed significant differences of percentage of rolled leaves(PRL)and number of rolled leaves(NRL)between different leaf blade and petiole pubescence types.The PRL of prostrate and semi-prostrate leaf blade pubescence were 51.37% and 6.98% lower than,while those of NRL were 32.25% and 3.72% lower than the skewed leaf blade pubescence,respectively.The PRL of appressed and semi-appressed leaf petiole pubescence were 42.20% and 62.81% lower than,while those of NRL were 25.93% and 46.40% lower than the erect leaf petiole pubescence,respectively.Therefore,the results showed both the leaf blade pubescence type and the leaf petiole pubescence type can be used as the indicators of resistance to bean pyralid in germpasm evaluation and breeding programs.
参考文献/References:
[1]崔章林,盖钧镒,吉东风,等.南京地区大豆食叶性害虫种类调查与分析[J].大豆科学,1997,16(1):12-20.(Cui Z L,Gai J Y,Ji D F,et al.A study on leaf-feeding insect species on soybeans in Nanjing area[J].Soybean Science,1997,16(1):12-20.)
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备注/Memo
基金项目:高等学校博士学科点专项科研基金资助项目(20060307028);国家重点基础研究发展规划资助项目(2004CB7206,2006CB101708,2009CB118404);国家高技术研究发展计划资助项目(2006AA100104);农业部公益性行业专项资助项目(200803060);教育部高等学校创新引智计划资助项目(B08025)。