1997
DOI: 10.1590/s0103-90161997000200006
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Conservação E Germinação De Sementes E Desenvolvimento De Plântulas Da Pereira Porta-Enxerto Taiwan Nashi-C

Abstract: Pesquisaram-se, por trinta meses, a conservação e a germinação de sementes, a emergência e o desenvolvimento de plântulas da pereira porta-enxerto Taiwan Nashi-C (Pyrus calleryana Decaisne). Sementes com 12% de umidade armazenadas sob ambiente frio (5-10oC), em frascos de vidro com tampa plástica, mostraram alto poder de conservação. Germinações de 100% ocorreram até o 9o mês, diminuindo para 97, 94, 83 e 76% no final do 12o, 18o, 24o e 30o mês de armazenamento, com uma emergência, em condições de ripado, de 8… Show more

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Cited by 12 publications
(8 citation statements)
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“…These results demonstrate that the development of rootstocks is more rapid under hydroponics in comparison with the conventional conditions employed by growers. Barbosa et al (1997) reported that 65% of Taiwan Naschi-C pear rootstocks grown at the regular method under netting were suitable for grafting after 240 days. It may be concluded, therefore, that grafting stage could be attained 163 days earlier using a hydroponic technique.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…These results demonstrate that the development of rootstocks is more rapid under hydroponics in comparison with the conventional conditions employed by growers. Barbosa et al (1997) reported that 65% of Taiwan Naschi-C pear rootstocks grown at the regular method under netting were suitable for grafting after 240 days. It may be concluded, therefore, that grafting stage could be attained 163 days earlier using a hydroponic technique.…”
Section: Resultsmentioning
confidence: 99%
“…(3) Professor Titular do Departamento de Ciência do Solo da Universidade Federal de Lavras, Campus Universitário, CEP 37200-000-Lavras-MG, Brazil. E-mail: vafaquin@ufla.br, (4) Doutoranda em Estatística e Experimentação Agropecuária do Departamento de Ciências Exatas da Universidade Federal de Lavras, Campus Universitário, CEP 37200-000-Lavras-MG, Brazil. E-mail: ademariasouza@yahoo.com.br.…”
Section: Introductionunclassified
“…De acordo com Daniel et al (1997) e Barbosa et al (1997), o indicativo de que a planta mantém proporções adequadas entre o desenvolvimento da raiz e o da parte aérea da planta é que haja uma razão MSPA:MSSR de aproximadamente 2. Nas mudas de pupunheira avaliadas, essa razão ficou entre 1,68 (tratamento 1 RA:3 CA) e 3,01 (tratamento 3 RA:1 CA), demonstrando mais MSPA que a MSSR aos 210 dias após a repicagem.…”
Section: Resultsunclassified
“…The nutrition of the seedlings must be balanced to provide nutrients in appropriate quantities and proportions, since the substrates normally used in hydroponic systems, have low or no chemical activity. Barboza et al (1997) studying pear rootstocks "Taiwan Nascher-C" in field conditions in plastic bags with 5 L of soil observed that the time for 65% of the rootstocks reached the point of grafting was 240 days of growth. However, Souza (2010) could produce these same rootstock to 77 days, 163 days in anticipation of using the hydroponic substrate.…”
Section: Nutrient Solutions Substrate and Managementmentioning
confidence: 99%