Influence of Cotton (<i>Gossypium hirsutum</i>) and Soybean (<i>Glycine max</i>) Planting Date on Weed Interference

Klingaman, Tracy E.; Oliver, Lawrence R.

doi:10.1017/s0043174500084162

Cited by 30 publications

(30 citation statements)

References 13 publications

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“…However, aboveground biomass of emerging common cocklebur was less from July than April or May planted soybean. Klingaman and Oliver (1994) found that soybean yield decreased due to entireleaf morning glory and sicklepod ( Cassia obtusifolia L.) as planting date was delayed from early May to early June. Young et al (2003) found that overall soybean injury by postemergence herbicide was greater with late planting than early planting date in Iowa.…”

Section: Environmental Factorsmentioning

confidence: 99%

Effect of Planting Date on Soybean Growth, Yield, and Grain Quality: Review

Wiatrak

2012

Agronomy Journal

101

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Delayed planting date and unfavorable environmental conditions have a negative effect on soybean [Glycine max (L.) Merr.] growth, development, and yield. Changes in photoperiod, temperature, and precipitation with delayed planting affect the duration of vegetative and reproductive stages, number of branches and pods, plant height, leaf area index (LAI), and normalized difference vegetation index (NDVI), and hence the grain yield. Delayed planting can also affect the soybean seed quality by changing the oil and protein content. Environmental factors like extremely high temperature and drought stress, which are often associated with delayed planting, have also a negative effect on plant development and yield. Compared to optimum air temperature, reduction in photosynthetic rate during heat stress decreases seed set and size, and seed yield. Drought stress during reproductive stages reduces carbon dioxide exchange rate (CER), photosynthesis, sugar production, and flow of metabolites to the expanding cells, which increases flower and pod abortion and decreases vegetative growth, duration of the seed filling stage, seed number, and seed size. Generally, the combined effect of photoperiod, temperature, and precipitation with delayed planting most likely contributes to decreased duration of vegetative and reproductive growth stages, reduced photosynthesis and plant growth, and therefore significant reduction in grain yield of soybean.

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Section: Environmental Factorsmentioning

confidence: 99%

Effect of Planting Date on Soybean Growth, Yield, and Grain Quality: Review

Wiatrak

2012

Agronomy Journal

101

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“…Ipomoea hederacea is a self-compatible annual vine that is believed to have a mixed mating system (Ennos, 1981;Elmore, 1986) due to its ability to produce viable seeds from autogamous fertilizations and hand outcrosses. This species is frequently found in cultivated gardens and disturbed areas and is a serious pest species in agricultural crops such as soybean (Thullen and Keeley, 1983;Klingaman and Oliver, 1996), cotton (Klingaman and Oliver, 1994), and peanuts (Bailey et al, 1999) throughout the southeastern United States. Germination occurs between mid-May and August, and flowering in east-central Alabama (AL) begins in early August.…”

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confidence: 99%

Inbreeding depression and selfing rate of Ipomoea hederacea var. integriuscula (Convolvulaceae)

Hull-Sanders¹,

Eubanks²,

Carr³

2005

American J of Botany

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Inbreeding depression and selfing rate were investigated in the self-compatible vine Ipomoea hederacea to assess the variability of the breeding system. Inbreeding depression differed between populations and the magnitude varied at germination, growth (as measured by aboveground biomass), and reproductive potential. Plants from Macon County, Alabama, USA, had significant inbreeding depression (31%) at germination, but no significant inbreeding depression for aboveground biomass or number of reproductive structures (buds and flowers) at 45 d post germination in the greenhouse or in the field. Plants from Morgan County, Alabama, however, had significant inbreeding depression (>50%) for all three stages in the greenhouse. In allozyme comparisons, five of the 11 I. hederacea populations surveyed had high selfing rates (66.66-92.53%) and high levels of homozygosity (F(IS) = 0.500-0.861) in 2003, and three of four populations surveyed in 2004 had selfing rates that exceeded 50%. High selfing rates, high levels of homozygosity, and low levels of inbreeding depression suggest that inbreeding depression may not present a significant barrier to the transmission of selfing alleles in some populations of I. hederacea, but does not account for the maintenance of a mixed mating system in other populations.

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“…When planting early‐maturing soybean, a preharvest desiccant was needed when large amounts of green weeds were present at harvest (6). Many effective soybean weed control programs have been extensively evaluated in the mid‐South using traditional planting systems (13), but few programs have been evaluated for soybean grown using the ESPS (10) or for May‐planted MG III cultivars that mature in August and subsequently require a shorter growing season.…”

Section: Introductionmentioning

confidence: 99%

Weed Control Alternatives in Very Early-Maturing Mississippi Soybean

et al. 2007

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Field experiments were conducted in 2000 and 2001 at Stoneville, MS to determine the most efficacious and economical weed control programs for MG III soybean and to determine the profitability of using a preharvest desiccant with this production system. The most consistent Johnsongrass and barnyardgrass control over years and rating periods occurred with herbicide programs that utilized sequential POST glyphosate applications or a POST glyphosate application following PRE herbicides. Late‐season prickly sida control was at least 86% with all herbicide programs except POST programs chosen by MSU‐HERB, a computer‐based herbicide recommendation program. Greater than 90% hemp sesbania control 7 weeks after final POST application (WAFPA) was achieved with any program that included a POST herbicide. At least 71% pitted morningglory control 7 WAFPA was achieved in 2000 with all treatments. Rainfall contributed to heavy preharvest weed infestations in 2001 and greater than 70% pitted morningglory control was achieved only when residual herbicides were utilized. Soybean yield and net returns were generally not improved by using a preharvest desiccant in 2000 when moisture was limited following in‐season herbicide applications and weed flushes at harvest were low. Soybean yield and net returns generally increased with the use of a preharvest desiccant in 2001. Residual herbicides reduced the need for preharvest desiccants in 2001. Sequential glyphosate tank mix programs with cloransulam + acifluorfen provided net returns equal to the best treatments regardless of year or preharvest desiccant.

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Influence of Cotton (Gossypium hirsutum) and Soybean (Glycine max) Planting Date on Weed Interference

Cited by 30 publications

References 13 publications

Effect of Planting Date on Soybean Growth, Yield, and Grain Quality: Review

Effect of Planting Date on Soybean Growth, Yield, and Grain Quality: Review

Inbreeding depression and selfing rate of Ipomoea hederacea var. integriuscula (Convolvulaceae)

Weed Control Alternatives in Very Early-Maturing Mississippi Soybean

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