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| Yosoff,Siti Fairuz; Mohamed,Mahmud Tengku Muda; Parvez,Anwar; Ahmad,Siti Hajar; Ghazali,Farinazleen Mohd; Hassan,Hamizah. |
| Leafy vegetables such as lettuce grown under different production systems may accumulate different concentrations of nitrate which may reach to the levels potentially toxic to humans. Moreover, nitrate accumulation varies in various plant parts and physiological age of the plant. Therefore, to determine the effect of production system and harvesting stage on nitrate accumulation and quality of butterhead lettuce, a study was conducted considering two lettuce production systems namely hydroponic and organic, and four different harvesting stages such as 35, 38, 41 and 44 days after transplanting (DAT). The experimental design was complete randomized design (CRD) with four replications. Hydroponic and organic systems performed similar in terms of yield,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hydroponic; Organic; Harvesting time; Nitrate content; Butterhead lettuce. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000300322 |
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| Santos,Célio Trzeciak dos; Dalpasquale,Valdecir Antoninho; Scapim,Carlos Alberto; Braccini,Alessandro de Lucca e; Krzyzanowski,Francisco Carlos. |
| The experiment was carried out to evaluate the time for harvesting seeds of three hybrids of corn (Zea mays L.) at their best physiological quality and the use of the milk line as an indicator of the physiological seed maturity. Single hybrids CD 1723 and CD 5501 and double hybrid OC 705 seeds were collected for 59 days, every four days, starting 23 days after female flowering. Seed dry weight, moisture content, germination, vigour (cold and accelerated aging tests), black layer formation and seed milk line development were analysed. The harvesting time started 47 days after female flowering with high physiological quality of the seeds identified by a joint analysis of those seven characteristics of them. The milk line at stage 4 proved to be the best... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Corn; Seeds; Harvesting time; Milk line. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000200001 |
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