Is the Nectar Sugar Content the Key to Improving Onion and Bunching Onion Seed Yield?

Bunching onion as well show great variability in seed yield among cultivars. Understanding the role of floral rewards and attractants to pollinator species is crucial improving crop yield. Nectar sugar concentration one most important factors affecting bee–flower interaction. The objective this work was determine differences nectar composition between bunching lines grown same location during two consecutive cultivation cycles different productive areas under open field conditions, relationship these sugars with results obtained showed that, regardless season location, produced higher yields than onion, content always onion. Fructose represented on average 56% total sugars, glucose 34% and, sucrose 9% amount nectar. There were locations studied. had a significant correlation could be reason why does not have pollination problems contrast plants. In addition, found provide options for companies make production decisions.