Preliminary Study on Development , Germination and Desiccation Tolerance of Jatropha curcas (Euphorbiaceae)

doi:10.3724.SP.J.1143.2008.07196

Plant Diversity ›› 2008, Vol. 30 ›› Issue (03): 355-359.DOI: 10.3724.SP.J.1143.2008.07196

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Preliminary Study on Development , Germination and Desiccation Tolerance of Jatropha curcas (Euphorbiaceae)

DENG Zhi-Jun¹, XIANG Zhen-Yong^{1, 3}, CHENG Hong-Yan², LI Yan-Jun¹, SONG Song-Quan^{1, 2}

1 Xishuangbanna Tropical Botanical Garden , Chinese Academy of Sciences , Mengla 666303 , China ;
2 Institute of Botany , Chinese Academy of Sciences, Beijing 100093, China ;
3 College of Landscape and Gardening , Yunnan Agricultural University, Kunming 650201 , China

Received:2007-09-09 Online:2008-06-25 Published:2008-06-25

麻疯树种子的发育、萌发和脱水耐性的初步研究

邓志军¹ , 向振勇^{1 , 3} , 程红焱² , 李燕军¹ , 宋松泉^{1 , 2}

1 中国科学院西双版纳热带植物园, 云南勐腊 666303; 2 中国科学院植物研究所, 北京 100093;3 云南农业大学园林园艺学院, 云南昆明 650201

Abstract

Abstract: The developmental changes in morphology and germinability of Jatropha curcas seeds, effects of temperature and light on seed germination , and changes in desiccation tolerance of mature seeds were studied in this paper. The results indicated that J. curcas seeds reached a physiological maturation at 58 days after anthesis, and that seed germination percentage reached a peak at physiological maturation, and then decreased. The optimal germination temperature was 25 to 30℃. J. curcas seeds were insensitive to dehydration at physiological maturation . There was not a notable effect of light on seed germination. Therefore, J. curcas seed was a non-photoblastic and orthodox seeds .

Key words: Desiccation tolerance

摘要： 研究了麻疯树种子的形态和萌发能力的变化, 温度和光照对种子萌发的影响以及种子脱水耐性的变化。结果表明: 麻疯树种子在开花后58 d 达到生理成熟期, 此时种子的萌发率达到最大值; 生理成熟期种子的适宜萌发温度范围为25～30℃ , 对脱水不敏感, 且光照对种子的萌发率无显著影响。因此麻疯树种子是一种光中性的正常性种子。

关键词: 脱水耐性, 萌发能力, 麻疯树种子, 光照, 正常性种子, 温度

CLC Number:

Q 945

DENG Zhi-Jun, XIANG Zhen-Yong^,, CHENG Hong-Yan, LI Yan-Jun, SONG Song-Quan^,. Preliminary Study on Development , Germination and Desiccation Tolerance of Jatropha curcas (Euphorbiaceae)[J]. Plant Diversity, 2008, 30(03): 355-359.

邓志军1 , 向振勇1 , 3 , 程红焱2 , 李燕军1 , 宋松泉1 , 2 . 麻疯树种子的发育、萌发和脱水耐性的初步研究[J]. Plant Diversity, 2008, 30(03): 355-359.

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Preliminary Study on Development , Germination and Desiccation Tolerance of Jatropha curcas (Euphorbiaceae)

麻疯树种子的发育、萌发和脱水耐性的初步研究

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