植物激素调控下的马铃薯生长发育.ppt

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植物激素调控下的马铃薯生长发育重点讲义

姓名:张晓勇 专业:作物栽培学与耕作学 学号:112014326001786 导师:王季春(教授) 唐道彬(副研究员) Four Stages of Tuberization * Stolon formation and growth * Induction of tuberization *Tuber initiation *Tuber growth Aeroponics Hydroponics: Deep water culture NFT THREE COMMON HYDROPONICS The unhealthy situations of tuberization Content Gibberellins (GA) Abscisic acid (ABA) Auxins Cytokinins (CTK) Ethylene Jasmonates(JA) 1 The role of Gibberellins *Enhancing stem organ elongation *Enhancing stolon initiation, growth, and branching. Leaf expansion Unfavorable for tuber initiation Vegetative (decrease the T/S ratio or R/S ratio) Vreugdenhil, D. and Struik, P.C., An Integrated View of the Hormonal Regulation of Tuber Formation in Potato (Solanum tuberosum), Physiol. Plant., 1989,75:525–531. Neerja Sharma, Narinder Kaur , Anil K Gupta.Effects of Gibberellic Acid and Chlorocholine Chloride on Tuberisation and Growth of Potato(Solanum tuberosum L).J Sci Food Agric ,1998, 78, 466-470 All conditions inhibit tuber initiation will increase sharply the GA content : * long day (LD) [1] * High temperature [2] * Superfluous nitrogen supply [3] [1] Neerja Sharma, Narinder Kaur , Anil K Gupta.Effects of Gibberellic Acid and Chlorocholine Chloride on Tuberisation and Growth of Potato(Solanum tuberosum L).J Sci Food Agric ,1998, 78, 466-470 [2] C.M. MENZEL,Tuberization in Potato at High Temperatures: Interaction between Temperature and Irradiance. Annals of Botany ,1984,1:35-39. [3] A. Krauss, H. Marschner.Influence of nitrogen nutrition, daylength and temperature on contents of gibberellic and abscisic acid and on tuberization in potato plants. Potato Research,1982, 25, (1):13-21 GA ↑ * A. Krauss ,H. Mars.Influence of nitrogen nutrition, daylength and temperature on contents of gibberellic and abscisic acid and on tuberization in potato plants. Potato Ressearch. :13- 21 * Neerja Sharma, Narinder Kaur , Anil K Gupta.Effects of Gibberellic Acid and Chlorocholin

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