Row spacing and growth habit in peanut crops: Effects on seed yield determination across environments

Haro, Ricardo; Carrega, Willians César; Otegui, María E.

doi:10.1016/j.fcr.2021.108363

Cited by 7 publications

(2 citation statements)

References 35 publications

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“…In addition, the high crop yield and production efficiency depend on the full utilization of light resources by optimizing plant density and sowing date, concurrently, yields may be further enhanced (Maltese et al, 2020). We found that densification with a higher leaf area was associated with greater pod yield over three years, which may be due to the compacted space producing more LAI and achieving higher efficient utilization of available resources (Haro et al, 2022). Studies in different ecological regions also confirmed that appropriate plant density coordinated the relationship between the individuals and the population resulting in high pod yield (Zhao et al, 2017).…”

Section: Influence Of Late Sowing On Peanut Pod Yieldmentioning

confidence: 99%

Optimizing sowing date and plant density improve peanut yield by mitigating heat and chilling stress

Liu¹,

Xu²,

Zhao³

et al. 2023

Agronomy Journal

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Peanut (Arachis hypogea L.) yield is dramatically declined by extreme weather stresses under climate change. Adjusting the sowing date and plant density are effective strategies to mitigate these stresses and improve peanut yield. However, a mechanistic understanding of the influence of environmental drivers and an optimized strategy have yet to be developed. Here, a 3‐year field experiment was conducted to evaluate the sowing date (April 25, early sowing; May 5, middle sowing; May 15, late sowing) and plant density (24, 30, and 36 plants m−2 as low, medium, and high) of peanut in the North China Plain. We found that higher pod yield was observed in the middle sowing (∼4492.4 kg ha−1) compared with the early and late sowing (∼3317.2 and 4088.1 kg ha−1, respectively). Meanwhile, the pod yield in high density (∼4162.5 kg ha−1) was 10.6% and 4.7% higher than low and medium density, respectively, mainly due to higher leaf area index. The relative peanut pod yield was positively correlated with the average minimum temperature 5 days before and after the flowering pegging stage, whilst it was negatively correlated with average maximum temperature 5 days before and after pod filling stage. Therefore, optimizing temperature conditions to improve the peanut yield can be achieved by adjusting the sowing date. In conclusion, sowing date and plant density manipulation constitute a useful method to mitigate heat and chilling stress and improve peanut yield.

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Section: Influence Of Late Sowing On Peanut Pod Yieldmentioning

confidence: 99%

Optimizing sowing date and plant density improve peanut yield by mitigating heat and chilling stress

Liu¹,

Xu²,

Zhao³

et al. 2023

Agronomy Journal

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“…The average country yield was 2.7 t ha -1 for the last decade and 3.45 t ha -1 for the last growing season (FAO, 2021). The main peanut region of the country covers 350000 ha in the temperate, central provinces of Córdoba (31º 49´S, 63º 46´W) and La Pampa (35º 01´S, 64º 15´W) (HARO et al, 2022), and 99% of Argentinean peanut production is localized in Córdoba province (NOVAS and CABRAL, 2002). Peanut yield in Argentina has increased over the decades, mainly since 1975, with the introduction of cultivars with procumbent growth habits (HARO et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Uso do modelo CSM-CROPGRO-Peanut para estimar a época ideal de semeadura e produtividade da água da cultura sob diferentes teores de água no solo na Argentina

Ovando

Haro

2022

SAS

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Cerca de 99% da produção de amendoim da Argentina está localizada na província de Córdoba, principalmente sob regime de sequeiro. Nesta região, as flutuações das chuvas podem levar a secas severas. A data ideal de semeadura do amendoim pode ser determinada usando um modelo de crescimento da cultura e dados climáticos históricos, estimando o impacto da seca na produtividade. Esta simulação teve como objetivo identificar as datas ideais de semeadura do amendoim cultivado sob três teores de água disponíveis na semeadura, em Córdoba. Outro objetivo, foi determinar as respostas da produtividade e da matéria seca à evapotranspiração e transpiração da cultura para os diferentes tratamentos, sendo realizada análise sazonal do modelo CROPGRO-Peanut. Para isso, foram utilizados dados meteorológicos de 1973 a 2019 da Estação Experimental Manfredi, e coeficientes de cultivo da cultivar ASEM 485 INTA. O solo utilizado foi um Franco Siltoso Típico Haplustoll. Os tratamentos foram: três teores de água disponíveis até 150 cm de profundidade (30%, 60% e 100%) na semeadura e duas épocas de semeadura (21/out. e 9/dez.). A data ideal de plantio, determinada pelo CSM-CROPGRO-Peanut para Córdoba, é influenciada pelo teor de água do solo na semeadura. Em ambas as épocas de semeadura, observou-se maior produtividade média de sementes e menor diferença interquartílica quando o teor de água do solo aumentou. Em cada umidade do solo, a época de semeadura tardia apresentou valores medianos menores, mas com menor variabilidade. O número de anos ruins foi de 15 quando o teor de umidade inicial foi de 30%, independente da época de semeadura. As demais combinações de água no início do plantio não determinaram anos ruins. Os aumentos no plantio precoce/tardio variaram de 19/12, 36/31 e 46/42 anos bons ao aumentar o teor de umidade. O maior teor de água no plantio está associado ao consumo de luxo. A produção de matéria seca e produtividade se ajustaram melhor a uma relação linear, quando comparada à transpiração do que à evapotranspiração da cultura. Esse comportamento é acentuado na data de plantio.

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Dynamic risk assessment of waterlogging disaster to spring peanut (Arachis hypogaea L.) in Henan Province, China

Liu¹,

Li²,

Zhang³

et al. 2023

Agricultural Water Management

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Row spacing and growth habit in peanut crops: Effects on seed yield determination across environments

Cited by 7 publications

References 35 publications

Optimizing sowing date and plant density improve peanut yield by mitigating heat and chilling stress

Optimizing sowing date and plant density improve peanut yield by mitigating heat and chilling stress

Uso do modelo CSM-CROPGRO-Peanut para estimar a época ideal de semeadura e produtividade da água da cultura sob diferentes teores de água no solo na Argentina

Dynamic risk assessment of waterlogging disaster to spring peanut (Arachis hypogaea L.) in Henan Province, China

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