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Cultivation

Winter covering

Winter covering is an agrotechnical practice for plant protection, indicating a variety's insufficient adaptation to the local climate. The necessity of this procedure shifts crop cultivation into an intensive and labor-intensive format, requiring regular expenditures and strict adherence to work s…

Mentioned in descriptions 14 029 varieties reference book.

The need for winter covering manifests as mandatory annual plant preparation, including mulching, hilling, bending down shoots, or using protective frames and materials. This is a variety marker indicating its inability to independently withstand local climatic conditions, which compels the agronomist to create an artificial environment for protection against frost damage.

Protection effectiveness directly depends on adhering to timelines and the quality of materials used. Early covering at high temperatures can provoke rotting or the development of fungal diseases, while late covering will not protect against early frosts. The success of the operation is also determined by the general condition of the plants: weakened specimens or an excess of nitrogen nutrition in autumn increase the risk of death even when protective structures are present.

Assessing the feasibility of covering relies on economic profitability and agrotechnical capabilities. With the aging of woody and shrub crops, the complexity of installing structures increases, which reduces the scalability of plantings. When choosing a variety, it is recommended to consider frost resistance data and prioritize regionalized winter-hardy alternatives that do not require manual intervention during the winter period.

Sources10

Breakdown by crop

Winter protection — Hydrangea macrophylla 237 Winter protection for lettuce 141 Winter protection of roses 96 Winter Cover — White Cabbage 87 Winter protection of grapevine 79 Winter covering of radish 71 Winter protection for lilies 63 Winter protection of chrysanthemums 52 Winter protection of grapes 37 Winter protection — Garden strawberry 29 Winter protection — raspberry and blackberry 25 Winter protection for carrots 25 Winter protection for Clematis 20 Winter protection of blackberries 20 Winter covering of endive 19 Winter protection — Hydrangea serrata 17 Winter protection of fig trees 15 Winter protection of Hydrangea 15 Winter covering of potatoes 15 Winter protection of radish 14 Winter protection — Garden Chrysanthemum 13 Winter protection — Chinese cabbage 13 Winter protection of asparagus 11 Winter protection — Rubus idaeus L. x Rubus subg. Eubatus Focke 11

Found in these crops

Apple 613 Grapevine 393 Tomato 340 Peach 338 Melon 293 Cauliflower 270 Bell pepper 263 Perennial ryegrass 246 Rose 242 Cucumber 230 Watermelon 219 Bigleaf hydrangea 198

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.

Sublim 2801

Active

Prunus persica (L.) Batsch · Peach

Joan Bonany^^^Simó Alegre^^^Cristian Fontich^^^Celia Cantin^^^Arsène Maillard^^^Laurence Maillard

1 record

Rudolph

Terminated

Zantedeschia Spreng. · Arum-lily

Trendflor B.V.

1 record

Ruby Sensation

Withdrawn

Zantedeschia Spreng. · Arum-lily

PETER BECKMAN

1 record

Silver Sunny

Terminated

Euryops pectinatus (L.) Cass. · Gray-leaf euryops

Franz Veit

1 record

Romagna Gold

Active

Prunus persica (L.) Batsch · Peach

Vincenzo Ossani

1 record

Summer Festival

Active

Hibiscus syriacus L. · Rose of Sharon

Jacobus Johannes Maria Lambalk

1 record

Scahapur

Terminated

Scaevola aemula R. Br. · Fairy fan-flower

Syngenta Seeds B.V.

1 record

RS-KRC

Application submitted

Malus domestica (Suckow) Borkh. x M. sargentii Rehder

Reinhard Schomberg Klee

1 record

SAKOST8606

Terminated

Osteospermum L. · Osteospermum

Sakata Ornamentals Europe A/S

1 record

SEREN

Terminated

Streptocarpus x hybridus Voss · Cape primrose

Lynne Dibley, Gareth Dibley, Rex Dibley, Cynthia Dibley

1 record

Siro

Active

Vaccinium L. · Bilberry

Maatalouden tutkimuskeskus (MTTK) (later: Maa- ja elintarviketaouden tutkimuskeskus (MTT)/ Present Luonnonvarakeskus (Luke))

1 record

Sea Stone

Withdrawn

Echinops ruthenicus M. Bieb.

Kwekerij Terra Nova V.O.F.

1 record

Romeo

Withdrawn

Malus domestica (Suckow) Borkh. · Apple

Stargrow Cultivar Development Pty Ltd

2 records

RUIRBM009B

Withdrawn

Rosa L. · Rose

De Ruiter Intellectual Property B.V.

1 record

Sonja

Withdrawn

Calluna vulgaris (L.) Hull · Common heather

Edens Creations B.V.

1 record

Ramboblitz

Withdrawn

Anigozanthos flavidus DC. · Tall kangaroo paw

Ramm Botanicals Holdings Pty Ltd

1 record

SAUNELLE

Active

Rosa L. · Rose

Bernard Sauvageot

1 record

Raham

Terminated

Hydrangea L. · Hydrangea

RAMPP JUNGPFLANZEN GMBH & CO. VERTRIEBS KG

1 record

PURPLE SUPREME

Active

Lavandula stoechas L. · French lavender

Plants Management Australia Pty Ltd

1 record

Purple Sensation

Withdrawn

Cissus adenopoda Sprague

Kwekerij Baars Uitgeest B.V.

1 record

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