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首页> 外文期刊>Revista Brasileira de Fruticultura >Crescimento de porta-enxertos de citros em tubetes influenciados por doses de N
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Crescimento de porta-enxertos de citros em tubetes influenciados por doses de N

机译:N剂量影响试管中柑橘砧木的生长

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摘要

The objective of this study was to evaluate the effects from N doses (0; 400; 800; 1,600; 3,200; and 4,800 mg/dm3 of N in substrate) on the growth of rootstocks lemons 'Cravo' and 'Volkameriano', tangerines 'Cleópatra' and 'Sunki', and hybrid 'Tangelo- Orlando' grown in tubules conditions. According to the results, the lemons presented a greater growth, the tangerines presented intermediate growth and the hybrid presented a lower growth. The addition of increasing N doses by application of the urea fertilizer, promoted increments in the growth of the rootstocks, and in the contents of total N. At 120 days after sowing, lemons 'Cravo' presented maximum height of 13.3 cm when fertilized using 1,240 mg/dm3 of N in substrate, whereas the lemon 'Volkameriano' presented maximum height of 12.3 cm when fertilized using 1,417 mg/dm3 of N in substrate. The 'Cleópatra' tangerine presented maximum height of 12.0 cm when fertilized using of 1,170 mg/dm3 of N in substrate, while the tangerine 'Sunki' presented a 10.1 cm height when fertilized using 1,145mg/dm3 of N in substrate, at 120 days after sowing. The hybrid 'Tangelo-Orlando'presented a maximum height of 9.1 cm when a dose of 1,117mg/dm3 of N was applied to substrate.
机译:这项研究的目的是评估N剂量(基质中N的0、400、800、1,600、3,200和4,800 mg / dm3)对砧木柠檬'Cravo'和'Volkameriano',橘子的生长的影响。小管条件下生长的Cleópatra和Sunki,以及杂交的Tangel-Orlando。根据结果​​,柠檬呈现出更大的生长,橘子呈现出中等的增长,而杂种呈现出更低的增长。通过施用尿素肥料增加氮素的添加量,促进砧木生长和总氮含量的增加。播种后120天,使用1,240种柠檬施肥时,“ Cravo”柠檬的最大身高为13.3厘米mg / dm3的氮肥,而柠檬“ Volkameriano”使用1,417 mg / dm3的氮肥施肥时最大高度为12.3 cm。在120天时,使用了1,170 mg / dm3的氮肥施肥时,'Cleópatra'橘子的最大高度为12.0 cm,而使用1,145mg / dm3的N的土壤施肥时,'Sunki'的高度为10.1 cm。播种后。当向底物上施用1117 mg / dm3的N时,杂种'Tangelo-Orlando'的最大高度为9.1 cm。

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