Enza Zaden Brochures

5 months ago

Crop Manual Bronsino

  • Text
  • Bronsino
  • Truss
  • Variety
  • Crop
  • Enza
  • Zaden
  • Fruits
  • Labour
  • Propagation
  • Planting

Bronsino This document is intended as a guideline for growers who have chosen Bronsino and who want to make use of the experiences of this variety in the several trials over the past years. However, you should take into account your own specific circumstances and goals as these can influence the situation. Bronsino combines a normal crop length with a fast truss development. Some remarkable features of this variety are the shiny red fruit, the strong green parts and the fast coloring down the truss. In addition, the variety has proven to maintain high average setting during hot periods. Propagation Bronsino does not require special treatment during the propagation period. However, it is good to take a few points into account. The plant type of the young plant is fairly large with quite a dark colour. Artificial lighting can be used in propagation but depends on the wishes of the grower and what time of year planting takes place. After topping, the first true leaf should be trimmed. Moreover, a strong rootstock is preferable. Start of the cultivation Bronsino normally produces a nice uniform plant. The advice is not to place the plant on the planting hole until the first truss is almost in full flower. Fairly soon after planting implement a day/night difference and be careful during dark conditions that the average 24 hour temperature is not too high. This to ensure good setting on the early trusses. Later in the crop Bronsino can be grown fairly fast with a flat temperature regime. However, be alert when the plant does have a higher plant load and/or in low light conditions to keep the heads sufficiently strong. Long and deep pre-nights are not necessary. In fact, they will increase the chance of king fruits. To have a sufficient elongation/stretching of the truss it is not recommended to have a morning dip. Plant type The active plant length is normal even though it holds 8 to 9 trusses. Bronsino has quite a large leaf and a dark crop colour. The heads grow close to the string and the variety should not give a lot of torn trusses. The trusses develop smoothly and the flowering speed is high. This results together with a good endurance in a high final production. Labour Bronsino is a labour friendly variety of average length. Removing leaves (deleafing) goes smoothly. After the 4th- 5th truss a leaf can be removed from the head. Towards the summer, depending on the condition of the crop, this can be continued every second week. The usual stem distance (density) applies also to Bronsino. Depending on the height of the glasshouse a final density of 3.3 stems per m² is usually sufficient. Experience until now shows that keeping an extra stem goes pretty easily. Truss clipping The trusses should be clipped or scraped for as long as possible (For October 15th sowing: first 8 trusses. For the November 1st sowing: first 5-7 trusses.). To clip the trusses is strongly preferred. Truss pruning By default, every truss can be pruned to five fruits throughout the whole season. The variety produces more than enough flowers, but to keep six fruits is not advised since the last one will not lie flat, rather it sticks up somewhat making it difficult to pack Fertiliser Bronsino does not have any specific nutrient requirements.