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Seed set in sunflower crops on the central Darling Downs, Queensland

Radford, B. J., Rhodes, J. W. and Nielsen, R. G. H. (1979) Seed set in sunflower crops on the central Darling Downs, Queensland. Queensland Journal of Agricultural and Animal Sciences, 36 (2). pp. 133-139.

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Abstract

In generally fine weather in 1974-75, seed set in heads open to pollination (79-97%) was positively correlated with seed set in bagged heads at the same site (0-48%). Seed set in the open heads was not significantly correlated with percentage commercially usable achenes (40-84%). Seed set in open heads was independent of number of beehives within 3 km and area of crop, indicating that pollinators were adequate. In 1975-6, heads which flowered during 5 wet days had lower seed set than heads which flowered in fine weather. Achene yield/head was also lower. This is attributed to reduced honeybee activity during the wet weather and low self-compatibility in the cv. studied.

Item Type:Article
Corporate Creators:Department of Agriculture and Fisheries, Queensland
Keywords:sunflowers; flowers; pollination Field Crops
Subjects:Plant culture > Field crops > Other field crops
Animal culture > Insect culture and beneficial insects > Bee culture
Live Archive:04 Mar 2024 04:57
Last Modified:04 Mar 2024 04:57

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