FENG Bang-chao,HUANG Shu-hao.Effect of Exogenous GA3 on Flowering and Fruiting of Mango Variety Tainong No.1[J].HEILONGJIANG AGRICULTURAL SCIENCES,2012,(09):84-86.
外源赤霉素对台农一号芒果开花和坐果影响研究
- Title:
- Effect of Exogenous GA3 on Flowering and Fruiting of Mango Variety Tainong No.1
- 文章编号:
- 1002-2767（2012）09-0084-03
- Keywords:
- Tainong No.1 ; GA3; flowering rate; fruit setting
- 分类号:
- S667.7
- 文献标志码:
- A
- 摘要:
- 为探究生长调节剂对芒果开花结果的调控作用，采用单因素随机区组试验设计,研究了不同浓度的赤霉素对台农一号芒果抽生花序及坐果的影响。结果表明:台农一号芒果摘除早花后，叶面喷施一次40、70、100 mg·L-1的赤霉素液，均有降低二次花抽花率的作用。赤霉素浓度100 mg·L-1时抽花率最低，70与40 mg·L-1之间差别不大。在第一次落果高峰期，用25、50、70 mg·L-1赤霉素液喷施果穗，总坐果数均有大幅增加。赤霉素液喷施果穗，增加的果数大部分是无胚果，对正常果坐果率无明显促进作用，在70 mg·L-1浓度时，正常果的数量反而减少。喷施赤霉素70 mg·L-1的无胚果数最多，50、25 mg·L-1次之，最低为对照。
- Abstract:
- In order to explore the adjust function of Growth regulator,the single-factor randomized block experiment was adopted to study the effect of different concentration exogenous GA3 on the flowering rate and fruit setting of mango variety Tainong No.1.The result in the field showed that 40、70 and 100 mg·L-1 of GA3，all of them would reduce secondary flowing rate.100 mg·L-1 of GA3 had the lowest rate.There was no difference between 70 and 40 mg·L-1GA3.During the first peak of physiological drop，25、50 and 70 mg·L-1 of GA3 sprayed on Tainong No.1 Mango’ s clusters，the fruit setting increased greatly，but most of them were without embryos fruit，and it was maximum when sprayed on 70 mg·L-1 of GA3，followed by 50 and 25 mg·L-1，there was no stimulation to normal fruit setting，however，at the 70 mg·L-1，the normal fruit reduced.
参考文献/References:
[1]李贵利，潘宏兵，杜邦，等 . 赤霉素对凯特芒果开花特性调控研究 [J]. 湖北农业科学， 2011 （ 14 ）： 2890 - 2896. [2]马华南.利用赤霉素制红象牙芒无胚果裂果试验[Ｊ].广西农学报，2009，24（1）：19-20，35. [3]华南热带作物学院，热带作物田间试验设计与统计分析[Ｍ].北京：中国农业出版社，1977：271-274. [4]傅秀红.果树生产技术（南方本）[M].北京：中国农业出版社，2007：203.
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备注/Memo
基金项目：广西科学研究与技术开发计划资助项目(桂科产0782001-2C)