Effect of Lodging on Seed Yield of Field-Grown Soybean-Artificial Lodging and Lodging Preventing Treatments

Kuniyuki Saito, Kuniko Nishimura, Toshinobu Kitahara

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Three field experiments were conducted to elucidate the effect of lodging on seed yield of soybean (cv. 'Enrei'). In exp I, seeds were sown in mid-Jun for ten years (1999-2008) with a row width of 50-80 cm at the density of 10.0-12.5 plant m-2, and the effects of lodging score and climatic factors on seed yield were examined. The lodging score and climatic factors were not significantly correlated with seed yield in the experimental field. However, the number of typhoons that approached the area and the lodging score in the experimental field (except in 2001 damaged by phytophagous bugs) were closely correlated with the average yield in Okayama Prefecture, at 0.01 and 0.05 levels of significance, respectively. In exp II, the lodging-preventing treatment increased the yield; the medium level of lodging decreased the yield by 5-7%. In exp III, the artificial lodging at the flowering stage decreased the yield by only 9% due to the yield compensation by branch development, but that at the young pod to maturity stages decreased the yield as much as 34%, and that at the seed filling to maturity stages decreased it by 26%. It was concluded that the complete lodging at the seed maturation stage decreased the yield more than 30%, but the medium lodging at an earlier or later stage of reproduction decrease it by 5-15%.

Original languageEnglish
Pages (from-to)27-32
Number of pages6
JournalJapanese Journal of Crop Science
Volume81
Issue number1
DOIs
Publication statusPublished - Jan 1 2012
Externally publishedYes

Fingerprint

lodging
Soybeans
seed yield
Seeds
soybeans
climatic factors
maturity stage
Cyclonic Storms
typhoons
Reproduction
seed maturation
filling period
pods
flowering

Keywords

  • Artificial lodging treatment
  • Lodging preventing treatment
  • Seed yield
  • Soybean
  • Typhoon

ASJC Scopus subject areas

  • Food Science
  • Agronomy and Crop Science
  • Genetics

Cite this

Effect of Lodging on Seed Yield of Field-Grown Soybean-Artificial Lodging and Lodging Preventing Treatments. / Saito, Kuniyuki; Nishimura, Kuniko; Kitahara, Toshinobu.

In: Japanese Journal of Crop Science, Vol. 81, No. 1, 01.01.2012, p. 27-32.

Research output: Contribution to journalArticle

@article{d52eedd41fe441ea91d4d5555747da6f,
title = "Effect of Lodging on Seed Yield of Field-Grown Soybean-Artificial Lodging and Lodging Preventing Treatments",
abstract = "Three field experiments were conducted to elucidate the effect of lodging on seed yield of soybean (cv. 'Enrei'). In exp I, seeds were sown in mid-Jun for ten years (1999-2008) with a row width of 50-80 cm at the density of 10.0-12.5 plant m-2, and the effects of lodging score and climatic factors on seed yield were examined. The lodging score and climatic factors were not significantly correlated with seed yield in the experimental field. However, the number of typhoons that approached the area and the lodging score in the experimental field (except in 2001 damaged by phytophagous bugs) were closely correlated with the average yield in Okayama Prefecture, at 0.01 and 0.05 levels of significance, respectively. In exp II, the lodging-preventing treatment increased the yield; the medium level of lodging decreased the yield by 5-7{\%}. In exp III, the artificial lodging at the flowering stage decreased the yield by only 9{\%} due to the yield compensation by branch development, but that at the young pod to maturity stages decreased the yield as much as 34{\%}, and that at the seed filling to maturity stages decreased it by 26{\%}. It was concluded that the complete lodging at the seed maturation stage decreased the yield more than 30{\%}, but the medium lodging at an earlier or later stage of reproduction decrease it by 5-15{\%}.",
keywords = "Artificial lodging treatment, Lodging preventing treatment, Seed yield, Soybean, Typhoon",
author = "Kuniyuki Saito and Kuniko Nishimura and Toshinobu Kitahara",
year = "2012",
month = "1",
day = "1",
doi = "10.1626/jcs.81.27",
language = "English",
volume = "81",
pages = "27--32",
journal = "Japanese Journal of Crop Science",
issn = "1349-0990",
publisher = "Crop Science Society of Japan",
number = "1",

}

TY - JOUR

T1 - Effect of Lodging on Seed Yield of Field-Grown Soybean-Artificial Lodging and Lodging Preventing Treatments

AU - Saito, Kuniyuki

AU - Nishimura, Kuniko

AU - Kitahara, Toshinobu

PY - 2012/1/1

Y1 - 2012/1/1

N2 - Three field experiments were conducted to elucidate the effect of lodging on seed yield of soybean (cv. 'Enrei'). In exp I, seeds were sown in mid-Jun for ten years (1999-2008) with a row width of 50-80 cm at the density of 10.0-12.5 plant m-2, and the effects of lodging score and climatic factors on seed yield were examined. The lodging score and climatic factors were not significantly correlated with seed yield in the experimental field. However, the number of typhoons that approached the area and the lodging score in the experimental field (except in 2001 damaged by phytophagous bugs) were closely correlated with the average yield in Okayama Prefecture, at 0.01 and 0.05 levels of significance, respectively. In exp II, the lodging-preventing treatment increased the yield; the medium level of lodging decreased the yield by 5-7%. In exp III, the artificial lodging at the flowering stage decreased the yield by only 9% due to the yield compensation by branch development, but that at the young pod to maturity stages decreased the yield as much as 34%, and that at the seed filling to maturity stages decreased it by 26%. It was concluded that the complete lodging at the seed maturation stage decreased the yield more than 30%, but the medium lodging at an earlier or later stage of reproduction decrease it by 5-15%.

AB - Three field experiments were conducted to elucidate the effect of lodging on seed yield of soybean (cv. 'Enrei'). In exp I, seeds were sown in mid-Jun for ten years (1999-2008) with a row width of 50-80 cm at the density of 10.0-12.5 plant m-2, and the effects of lodging score and climatic factors on seed yield were examined. The lodging score and climatic factors were not significantly correlated with seed yield in the experimental field. However, the number of typhoons that approached the area and the lodging score in the experimental field (except in 2001 damaged by phytophagous bugs) were closely correlated with the average yield in Okayama Prefecture, at 0.01 and 0.05 levels of significance, respectively. In exp II, the lodging-preventing treatment increased the yield; the medium level of lodging decreased the yield by 5-7%. In exp III, the artificial lodging at the flowering stage decreased the yield by only 9% due to the yield compensation by branch development, but that at the young pod to maturity stages decreased the yield as much as 34%, and that at the seed filling to maturity stages decreased it by 26%. It was concluded that the complete lodging at the seed maturation stage decreased the yield more than 30%, but the medium lodging at an earlier or later stage of reproduction decrease it by 5-15%.

KW - Artificial lodging treatment

KW - Lodging preventing treatment

KW - Seed yield

KW - Soybean

KW - Typhoon

UR - http://www.scopus.com/inward/record.url?scp=84922685561&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84922685561&partnerID=8YFLogxK

U2 - 10.1626/jcs.81.27

DO - 10.1626/jcs.81.27

M3 - Article

VL - 81

SP - 27

EP - 32

JO - Japanese Journal of Crop Science

JF - Japanese Journal of Crop Science

SN - 1349-0990

IS - 1

ER -