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Variety traits

Waxy bloom

Waxy bloom is a layer of wax-like substances on the surface of plant organs that acts as a protective barrier against moisture evaporation, overheating, and pests. This trait is genetically determined and serves as an important criterion for a variety's resistance to abiotic and biotic stresses.

Mentioned in descriptions 5 256 varieties reference book.

Waxy bloom (epicuticular wax) is a layer of substances on the surface of leaves, stems, and fruits that acts as a transpiration barrier, reducing moisture loss during drought conditions and reflecting ultraviolet radiation for protection against overheating. Visually, it manifests as a characteristic glaucous sheen on the plant's surface.

The intensity of bloom formation is determined by the genetic characteristics of the variety, but is subject to environmental factors. Wax synthesis increases at lower temperatures (below 15 °C), higher levels of UV radiation, and moisture deficit, which allows the plant to adapt to changing growing conditions.

In the state variety testing system, this trait is assessed visually by experts on a scoring scale, where the degree of expression is determined by comparison with an accepted standard. The presence of a strong waxy bloom increases the crop's resistance to pest damage, but creates a hydrophobic surface that requires a specific approach to the selection of adjuvants when conducting treatments.

Sources10

Breakdown by crop

Grape Bloom 530 Waxy bloom — white cabbage 290 Plum wax bloom 284 Grape bloom 214 Apple bloom 125 Waxy bloom — soft wheat 112 Waxy bloom — onion 73 Blueberry bloom 73 Waxy bloom — onion 64 Waxy bloom — red cabbage 54 Waxy bloom of barley 52 Waxy bloom — cauliflower 37 Gooseberry waxy bloom 34 Waxy bloom of garden carnation 33 Waxy bloom — leek 32 Waxy bloom of raspberry 28 Bloom — Japanese plum 28 Waxy bloom of garlic 23 Waxy bloom of watermelon 21 Waxy bloom — Savoy cabbage 21 Apple Waxy Bloom 18 Olive waxy bloom 14 Waxy bloom of pea 14 Waxy bloom of triticale 14

Found in these crops

Grapevine 490 European plum 292 White cabbage 288 Common grape vine 203 Apple 126 Bread wheat 109 Onion 73 Highbush blueberry 63 Onion 63 Red cabbage 53 Barley 44 Cauliflower 37

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

Silara

Active

Vitis L. · Grapevine

FR
2 records

Galibia

Active

Vitis L. · Grapevine

FR
2 records

Colossus

Active

Allium cepa L. var. cepa · Onion

NL
2 records

Bingo

Terminated

Brassica oleracea L. (White Cabbage Group) · White cabbage

NL
2 records

Voskovača

Active

Malus domestica (Suckow) Borkh. · Apple

SI
2 records

Vítek

Active

Prunus domestica L. · European plum

CZ
3 records

Veritas

Active

Vitis L. · Grapevine

CZ
3 records

Tšernomor

Active

Ribes uva-crispa L. var. reclinatum (L.) Berl. · Gooseberry

EE
3 records

Triumf

Active

Allium cepa L. var. cepa · Onion

CZ
2 records

Tristan

Active

Allium sativum L. · Garlic

CZ
3 records

Voyageur

Active

Prunus domestica L. · European plum

NL
2 records

Wädenswil

Terminated

Brassica oleracea L. (White Cabbage Group) · White cabbage

NL
2 records

Tamme sinine

Active

Prunus domestica L. · European plum

EE
3 records

Tarly

Active

Allium sativum L. · Garlic

CZ
3 records

Vision

Active

Prunus domestica L. · European plum

PL
5 records

Szentesi voros

Active

Brassica oleracea L. (Red Cabbage Group) · Red cabbage

HU
2 records

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