Phenology of sunflower cultivars. I. Classification of responses

Goyne, P.J., Hammer, G.L. and Woodruff, D.R. (1982) Phenology of sunflower cultivars. I. Classification of responses. Australian Journal of Agricultural Research, 33 2: 243-250. doi:10.1071/AR9820243


Author Goyne, P.J.
Hammer, G.L.
Woodruff, D.R.
Title Phenology of sunflower cultivars. I. Classification of responses
Journal name Australian Journal of Agricultural Research   Check publisher's open access policy
ISSN 0004-9409
Publication date 1982
Sub-type Article (original research)
DOI 10.1071/AR9820243
Volume 33
Issue 2
Start page 243
End page 250
Total pages 8
Place of publication Collingwood, VIC, Australia
Publisher C S I R O Publishing
Language eng
Abstract The phenology of commercial sunflower cultivars available to Queensland growers in 1979 was studied in monthly plantings over a 12-month period at Toowoomba in southern Queensland. By using pattern analysis procedures, the cultivars were classified into three maturity groups, viz. 'Very Quick', 'Quick' and 'Medium', based on the number of days from emergence to the head-visible stage of growth. Most of the cultivars belonged to the Quick and Medium maturity groups. Cultivar differences were most obvious for plantings in the cooler months (March to October). To classify new releases, one or two plantings during this period as well as one planting in summer is recommended. Sunfola 68-2 and Hysun 30 should be included in these plantings as cultivars representative of the two major maturity groups. The study showed that there was very little genetic variability in phenology in the present commercial cultivars and there was little difference in phenology among cultivars in the main summer planting period.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Queensland Alliance for Agriculture and Food Innovation
 
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