All breeding at De Bolster is conducted with ‘classical’ techniques under organic, low input conditions. This means that we use low input of water and fertilisation. This strategy is chosen in order to breed very robust, vigorous and productive varieties. All our varieties can therefore withstand harsh conditions and are ideal for production under organic circumstances. Top varieties for organic growers!
Winter and summer squash
Bart Vosselman, co-owner of De Bolster, started with breeding winter squash in the early 2000s. In this breeding program we mainly focus on good storability, yield, and taste. Thus far we have bred 5 varieties that all have their unique features. Currently we are market leader in the Netherlands regarding orange varieties for the fresh market. Still, we are optimizing the storability and taste; new improved and distinctive varieties will follow soon. Summer squash breeding has just started and the first variety is about to come up. Stay tuned!
We are also breeding in tomato for quite some years. We develop varieties which are excellent for organic growers that use a cold greenhouse/tunnel. All our varieties have been bred in a cold greenhouse under low input conditions. We focus on robust varieties with a high yield yield, and varieties that produce beautiful tomatoes with good storability and taste. Currently we have two varieties, Bolstar Granda (round, 80 g) and Bartelly (cherry, 15-17 g). We are making great progress here and we are currently trialling new cherry and round tomato varieties that have significant added value to our current varieties. We will keep you updated!