Trendell, B. P. and Ferguson, K. H. and Toleman, Mark and Rasmussen, T. S. and von Nordheim, J. (1984) Effect of time planting on yield and quality of flue-cured tobacco in North Queensland. Queensland Journal of Agricultural and Animal Sciences, 41 (2). pp. 91-100. ISSN 0157-7794
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The effect of field planting times on yield and leaf quality were studied in the varieties, Hicks Q46 and Sirone 2, between 1976 and 1978. Early winter (EW), late winter (LW) and mid spring (MS) plantings were made each year as well as a mid autumn (MA) planting in 1978.
The three year averages of saleable yields were 2,219, 2,735 and 696 kg/ha for EW, LW and MS respectively. The saleable yeild for MS was 78% lower than total yield and showed the adverse effect of seasonal conditions on late plantings. The MA planting yielded 3,077 kg/ha compared with 2,814 kg/ha (EW) and 3,000 kg/ha (LW) in 1978.
Total harvested leaf areas per plant averaged 11,610cm2 (EW), 18,670cm2 (LW) and 23,134cm2 (MS). In each year there was a consistent increase in leaf area as planting time was delayed. A corresponding decrease in leaf weight per unit area was observed.
A subjective leaf quality assessment indicated a decrease in leaf quality as planting time was delayed. However, results within planting times wer variable and inconsistent. Total alkaloid concentrations in leaf were deteremined in 1976 and 1977 and averaged 4.6% (EW), 3.7% (LW) and 3.6% (MS).
The results indicated that commercially acceptable yields from early planted crops are achieveable. Transplanting into the field in late autumn and the adoption of management practices which maximize leaf number per plant and per hectare, would produce acceptable yield of leaf with favourable leaf quality.
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|Item Type:||Article (Commonwealth Reporting Category C)|
|Item Status:||Live Archive|
|Additional Information:||No evidence of copyright restrictions.|
|Depositing User:||Mrs Rae Jones|
|Faculty / Department / School:||Historic - Faculty of Business - Department of Information Systems|
|Date Deposited:||30 Sep 2010 00:01|
|Last Modified:||02 Jul 2013 23:19|
|Uncontrolled Keywords:||field planting times; planting; times; yield; tobacco|
|Fields of Research :||07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070399 Crop and Pasture Production not elsewhere classified|
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