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Variety traits

Lodging

Lodging is the displacement of stems from a vertical position or their breakage caused by root or stem factors. It is a critical variety trait that directly affects yield losses and harvesting efficiency.

Mentioned in descriptions 50 198 varieties reference book.

Lodging is a deviation of plants from a vertical position, which is categorized into root lodging and stem lodging. In the first case, tilting occurs due to weak root anchorage in the soil, while in the second, the stem bends or breaks due to insufficient straw strength under the load of the ear mass or stand density.

Lodging resistance is evaluated during state variety trials visually on a five-point scale before harvest, where high scores correspond to high resistance, and low scores to a tendency for crop collapse. Additionally, methods for measuring stem flexibility and calculating bending strength are employed.

This variety trait depends on the interaction between the genotype and growing conditions. Genetic resistance is determined by the presence of semi-dwarf genes, straw diameter, the strength of anatomical tissues, and lignin content, whereas external factors include nitrogen nutrition, seeding rate, and weather conditions.

Sources10

Breakdown by crop

Maize Lodging 2 626 Lodging — soft wheat 1 845 Lodging in barley 1 189 Sunflower lodging 1 035 Maize Lodging 963 Lodging in oilseed rape 767 Pea lodging 539 Lodging — soybean 455 Triticale lodging 374 Lodging in oats 309 Rapeseed lodging 296 Lodging — durum wheat 288 Lodging — Rye 252 Tulip Topple 245 Rice lodging 206 Lodging — Perennial ryegrass 159 Bean lodging 158 Lily lodging 146 Sorghum Lodging 143 Lodging — Sugar Beet 128 Alfalfa lodging 116 Lodging in Hydrangea macrophylla 114 Lodging — Sweet Corn 113 Lodging in Flax 112

Found in these crops

Maize 2 635 Bread wheat 1 850 Barley 1 187 Sunflower 1 034 Maize 966 Rapeseed 763 Pea 543 Soybean 454 Triticale 376 Oat 310 Rapeseed 296 Durum wheat 287

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.

Roi des beurres

Terminated

Phaseolus vulgaris L. · Common bean

Domaine Public (FR)

FR
1 record

RNX 3403

Terminated

Brassica napus var. napus · Rapeseed

Hrehorts Shreder

UA
1 record

RM 91

Terminated

Sorghum bicolor (L.) Moench subsp. bicolor · Sorghum

Sud Cereales (FR)

FR
1 record

RM 35

Terminated

Sorghum bicolor (L.) Moench subsp. bicolor · Sorghum

Sud Cereales (FR)

FR
1 record

Rusalka

Terminated

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Hal`chyns`ka Valentyna Andriivna, Plekhanova Tamara Fedorivna,

UA
2 records

RIOCA

Withdrawn

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

GIE Semunion Recherches (FR)

FR
1 record

Rigoletta

Withdrawn

Solanum tuberosum L. · Potato

Böhm-Nordkartoffel Agrarproduktion GmbH & Co. OHG

DE
1 record

Roodknop ISK

Terminated

Ribes nigrum L. · Blackcurrant

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

PL
1 record

RGT Labelur

Withdrawn

Triticum durum Desf. · Durum wheat

RAGT 2n, FR

FR
1 record

RND 044

Terminated

Helianthus annuus L. · Sunflower

Rotaru Tudor Grigore

UA
2 records

RLS1409R

Protection expired

Sorghum bicolor (L.) Moench · Sorghum

Joel Alcouffe

UA
2 records

RH24051

Application submitted

Zea mays L. · Maize

RAGT 2N S.A.S

IT
2 records

RH19003

Withdrawn

Zea mays L. · Maize

RAGT 2N S.A.S

IT
1 record

RH15013

Terminated

Zea mays L. · Maize

RAGT 2N S.A.S

IT
1 record

RH08023

Withdrawn

Zea mays L. · Maize

RAGT 2N S.A.S

IT
1 record

RGT Moneo

Withdrawn

Triticum aestivum L. · Bread wheat

RAGT 2n, FR

FR
1 record

RHA ORO 7

Terminated

Helianthus annuus L. · Sunflower

Dragan Skoric

UA
2 records

RGT Huxxo waxy

Active

Zea mays L. subsp. mays (Maize Group) · Maize

RAGT 2n, FR

FR
1 record

RH21018

Withdrawn

Zea mays L. · Maize

RAGT 2N S.A.S

IT
1 record

RH08044

Withdrawn

Zea mays L. · Maize

RAGT 2N S.A.S

IT
1 record

RGT Demesur

Active

Triticum durum Desf. · Durum wheat

RAGT 2n, FR

FR
1 record

RGT Buffalo

Active

Helianthus annuus L. · Sunflower

RAGT 2N S.A.S

IT
1 record

RF1711SU

Active

Helianthus annuus L. · Sunflower

Nicolae Boaghe, Elena Andreea Teodorescu

UA
2 records

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