Pollination bags
Pollination bags are designed to suit overflow the inflorescence or individual flowers of a plant type.
Pollination bags
Pollination bags are designed to suit overflow the inflorescence or individual flowers of a plant type. The size, shape and strength of bag should make sure that there’s no contact with flowers to avoid development of diseases and physical hindrances in seed development. The size of bag will vary with the dimensions of inflorescence to be covered. Pollination bags may be 2D or 3D. The 3D bags have a gusset for expansion to avoid contact between the plant and therefore the bag. Sometimes pollination bags may have a window to permit examination of inflorescence without removing the bag. Bags with a flap over the window, when provided, protects from strong sunlight.
Most pollination bags are produced by general sack manufacturers which have branched out into providing pollination bag supplies. Such bags might not suit to the requirements of plant breeders of various crops. Modifications in bags have been made that allow pollen collection without opening the bag in order minimizes contamination. These bags have provision on one side that permits attachment of a plastic tube during which pollen are often collected after shaking the bag. Bags for female flowers sometimes have nozzles for introducing the pollen with none need for them to open.
Application of Pollination bags
Plant breeders have often faced a drag of opening of at the seams. Glued seams don’t hold long under variable weather frequented with rains. Pollination tents are also used for controlled pollination
Kraft paper Pollination bags
Pollination bags utilized in Sorghum and maize are made up of strong craft. These bags multi-layered strong brown paper but are often damaged by rains and birds to some extent.
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Good pollination bags are those which have most of the subsequent properties:
Enough strength against abrasions and tearing by wind, rain storms and birds within the open field or water spray within the glasshouse.
Highly effective barrier to pollen grains with pores smaller than the dimensions of pollen
Allow sunlight penetration for continuation of photosynthetic activity within the bag. However, the material should be UV stable.
An honest bag should allow ambient micro-environment within it for the event of strong and healthy seeds which will reflect in higher yield and seed viability for healthy seedlings that will ensure early establishment in the field.
Moisture and air should be ready to undergo the bag. There should be enough aeration that ought to not let temperature rise drastically.
Rainwater shouldn't collect within the bag and rain shouldn't deteriorate the standard of bag. The bag should dry out quickly after the rain.
Fungal disease shouldn't develop within the bag. This will result from the combined effect of ambient conditions for moisture, aeration and temperature maintenance in the bag.
The BAGS should be fold-able and versatile for straightforward transport and management during operations
