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摘要:
In subtropical or tropical conditions, the insufficient winter chill accumulation is often a limiting factor to break the dormancy of temperate-climate species such as the blackberry, which requires using products to help break dormancy. This study evaluates the efficacy of compounds in breaking dormancy of blackberry and its consequent influence on phenology and crop yields. The experiment was conducted in S?o Manuel, State of S?o Paulo, Brazil, in the 2011/2012 production cycle. The plants used were two-year-old “Tupy” blackberry (Rubus spp.), with 0.6 × 4.0 m spacing (4.166 plants·ha-1). Pruning was performed in August, followed by the application of these treatments: control (water);hydrogen cyanamide (Dormex?);nitrogen fertilizer (Erger?) and mineral oil (Assist?). The concentrations of each compound used were: 2.0%, 4.0%, 6.0% and 8.0%. The compounds used influenced the budding, flowering and fruit harvest stages, in addition to providing increased yields depending on the concentration used. For hydrogen cyanamide the recommended concentration is of 4.2% and 5.4% for nitrogen fertilizer;doses above these concentrations may cause phytotoxic effects. For mineral oil the dose recommended is of 8.0%.
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篇名 Breaking Dormancy of “Tupy” Blackberry in Subtropical Conditions
来源期刊 美国植物学期刊(英文) 学科 医学
关键词 RUBUS spp. PHENOLOGY YIELD Growth REGULATOR
年,卷(期) 2015,(11) 所属期刊栏目
研究方向 页码范围 1760-1767
页数 8页 分类号 R73
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Growth
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美国植物学期刊(英文)
月刊
2158-2742
武汉市江夏区汤逊湖北路38号光谷总部空间
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1814
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