1. Importance of pollinators in changing landscapes for world crops;A-M Klein,2007
2. The relative performance of inbreds and open-pollinated populations of spring-sown onions;B Dowker,1981
3. Response of hybrid and open-pollinated safflower to plant population;JL Gonzalez,1994
4. Yield potential of spring turnip rape synthetics and composite hybrids compared with open-pollinated commercial cultivars;T Niemelä,2006
5. Comparative nitrogen response and economic evaluation for optimum yield of hybrid and open-pollinated canola;S Mahli,2007