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多效唑、乙烯利对妃子笑荔枝成花的影响

Effects of PP₃₃₃ and Ethrel on Blossom of Litchi ‘Feizixiao’

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【Author】 CHEN Xuan1,2,3) TAO Zhongliang1,2) WU Zhixiang1,2) ZHOU Zhaode3) WANG Lingxia3)(1 Rubber Research Institute,CATAS,Danzhou,Hainan 571737; 2 Ministry of Agriculture Danzhou Key Field Station of Observation and Research for Tropical Agricultural Resources and Environments,Danzhou,Hainan 571737; 3 South China University of Tropical Agriculture,Danzhou,Hainan 571737)

【机构】中国热带农业科学院橡胶研究所；华南热带农业大学；华南热带农业大学海南儋州571737；农业部儋州热带农业资源与生态环境重点野外科学试验观测站海南儋州571737；华南热带农业大学海南儋州571737；海南儋州571737；

【摘要】研究了喷施15%多效唑(PP333)1.0 g/L+40%乙烯利0.80 mL/L(均指商品药剂浓度)对妃子笑荔枝成花的影响。结果表明:叶面喷施药剂多效唑、乙烯利,能有效地控制妃子笑荔枝萌抽冬梢,促进花芽分化,诱导成花;其抽花穗枝数、侧穗数、成花率分别比对照高53.73%、56.16%、55.30%,花穗长度比对照长12.96%,抽冬梢枝数比对照少76.40%。更多还原

【Abstract】 The 15% PP333(1.0 g/L) and 40% ethrel(0.80 mL/L) were sprayed on the surface of leaves of Litchi ’Feizixiao’(Litchi chinensis Sonnerat) to observe their effect on its blossom.The results showed that PP333 and ethrel inhibited the winter shoot growth of ’Feizixiao’ to promote flower bud differentiation and induce blossom;that the inflorescence and the side inflorescence amount,flower bud differentiation ratio and the inflorescence length were 53.73%,56.16%,55.30% and 12.96% higher than those of the control respectively and;that the winter shoots were 76.40% lower than those of the control.更多还原