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Citation:

Studies on Optima l Germ ina tion Condition s of D ifferen t Cultivars andHeat-resistance Techn iques for Seeds of Lilium ×form olongi

  • Received Date: 2007-11-28
  • The op timal conditions of seeds germination for different cultivarswas studied. The results showed that thesuitable germination temperature varied with different cultivars. The op timal germination temperature was 20 ℃ forearly flowering cultivars‘Raizan No. 1’, while for medium flowering cultivar‘Rinzan No. 2’and late floweringcultivar‘Raizan No. 3’, the suitable temperature were 18 ℃ and 15 ℃ separately. During the p rocess of seedgermination, lighting time and light constitutes didn’t have significant effect on germination rate. The experimentsshowed that the germination rates of three cultivars decreased greatlywhen germination temperature was over 24 ℃,especially for‘Raizan No. 1’. So, different p re-chilling treatments of‘Raizan No. 1’were taken, in order to solvethis p roblem. The results indicated that germination at 30 ℃ was accelerated by p re-chilling treatment at 10 ℃ formore than 10 days, germination rate wasmore than 75% , and itwas 85. 22% by the same p retreatment for 20 days,the same as op timal germination temperature 20 ℃. Whereas p retreatment at 3 or 5 ℃ had no p romotive effects at 30℃ germination condition, germination rate was less than 40%. In conclusion, p re-chilling treatmet at 10 ℃ formore than 10 dayswas recommended to germination of L ilium ×form olongi under high temperature conditions.
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  • [1] 鷹見敏彥,大桥章子,田村文男, シンテツポウユリの種子発芽に及ぼす温度条件,光条件および翼除去の影響 [J]. 園学雑,2003a, 72 (別2) : 456

    [2] 鷹見敏彥. 大桥章子,田村文男, シンテツポウユリの種子発芽に及ぼすGA,ABA,エチレンおよびニコナゾール処理の影響 [J]. 園学雑, 2003b, 72 (別2) : 457

    [3] 孙晓玉,杨利平,姜浩野,等. 条叶百合种子萌发的研究[J]. 植物研究, 2004, 23 (1) : 61 - 65

    [4] 杨利平,文惠民,杨青杰. 细叶百合的种子萌发[J]. 东北林业大学学报, 2002, 30 (5) : 70 - 72

    [5] 杨艳清. 野生花卉毛百合有性繁殖技术[J]. 北方园艺, 2006(5) : 156 - 157

    [6] 王新颖、李智辉,邢致远,等. 新铁炮百合种子萌发的研究[J].种子, 2006, 25 (9) : 14 - 16

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    RonM S , Yong G S. Seed germination of L ilium ×form olongi as influenced by temperature and p lant growth regulators [J]. Acta Hort,1996, 414: 243 - 250
    [8] 王 忠,王 刚. 植物生理学[M]. 北京:中国农业出版社, 2005

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    Murashige T , Skoog F A. Revised medium for rap id growth and bioassayswith tobacco tissue cultures [J]. Physiol Plant, 1962, 15:473 - 497
    [10] 李 雪,杜 捷,陈丽梅,等. 克得利亚种子的萌发及鳞茎生长的研究[J]. 西北师范大学学报, 2004, 40 (2) : 69 - 71

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    Tokumasu S, Kanada I , Kato M. Germination behavior of seed asaffected by different temperature in some species of B rassica [J].Japan Soc Hort Sci, 1985, 54: 364 - 370
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Studies on Optima l Germ ina tion Condition s of D ifferen t Cultivars andHeat-resistance Techn iques for Seeds of Lilium ×form olongi

  • 1. College of Landscape Architecture,Beijing Forestry University,National Engineering Research Center for Floriculture,Beijing 100083, China

Abstract: The op timal conditions of seeds germination for different cultivarswas studied. The results showed that thesuitable germination temperature varied with different cultivars. The op timal germination temperature was 20 ℃ forearly flowering cultivars‘Raizan No. 1’, while for medium flowering cultivar‘Rinzan No. 2’and late floweringcultivar‘Raizan No. 3’, the suitable temperature were 18 ℃ and 15 ℃ separately. During the p rocess of seedgermination, lighting time and light constitutes didn’t have significant effect on germination rate. The experimentsshowed that the germination rates of three cultivars decreased greatlywhen germination temperature was over 24 ℃,especially for‘Raizan No. 1’. So, different p re-chilling treatments of‘Raizan No. 1’were taken, in order to solvethis p roblem. The results indicated that germination at 30 ℃ was accelerated by p re-chilling treatment at 10 ℃ formore than 10 days, germination rate wasmore than 75% , and itwas 85. 22% by the same p retreatment for 20 days,the same as op timal germination temperature 20 ℃. Whereas p retreatment at 3 or 5 ℃ had no p romotive effects at 30℃ germination condition, germination rate was less than 40%. In conclusion, p re-chilling treatmet at 10 ℃ formore than 10 dayswas recommended to germination of L ilium ×form olongi under high temperature conditions.

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