Distance from pollen source and yields of male sterile sunflower and sorghum

Robinson, R.G. (1984) Distance from pollen source and yields of male sterile sunflower and sorghum. Canadian Journal of Plant Science, 64 (4). pp. 857-861.

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Abstract

Sunflower (Helianthus annuus) and sorghum (Sorghum bicolor) seed crops were grown in fields isolated from similar crops by 5 km and a hill. There were hives about 1 km away (H. annuus is insect-pollinated, S. bicolor wind-pollinated), but no observations on bee foraging are reported. Seed was harvested from rows of male-sterile plants located from 1 (76 cm) to 40 (30 m) rows from the pollen source. Correlations and regression analyses showed that yield per row declined linearly with distance from the pollinator rows. However, yield of the male-sterile parent per ha of area occupied by both parents was increased by including up to at least 6 male-sterile and 2 pollinator rows per strip

Item Type: Article
Author Affiliation: Department Agronomy and Plant Genetics, University of Minnesota, St. Paul, MN 55108, USA
Subjects: Plant Production
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 14 May 2012 05:28
Last Modified: 14 May 2012 05:28
Official URL: http://pubs.aic.ca/doi/abs/10.4141/cjps84-117
URI: http://eprints.icrisat.ac.in/id/eprint/5285

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