New approach to determine biological and environmental factors influencing mass of a single pea (Pisum sativum L.) seed in Silesia region in Poland using a CART model

Dacko, Mariusz; Zając, T.; Synowiec, Agnieszka; Oleksy, A.; Klimek-Kopyra, Agnieszka; Kulig, B.

doi:10.1016/j.eja.2015.11.025

Cited by 25 publications

(23 citation statements)

References 31 publications

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“…In our experiment, considerably fewer leaves were observed on the pea plants fertilized with the lower level of phosphorus (70 kg P ha −1 ). Dacko et al [9] showed that weather conditions strongly influence the number of fruiting nodes formed by a single pea plant. Our study confirmed that temporary soil drought during the bud-forming stage has a significant effect on the number of fruiting nodes per stem.…”

Section: Discussionmentioning

confidence: 99%

“…A lack of stability of pulse yields is observed not only on dry continents, but in recent years also in the temperate climate conditions characteristic of Europe [7]. Zając et al [8] and Dacko et al [9] have shown that weather conditions in Poland are a significant predictor of the number of fruiting nodes and of seed weight per pod. Recent years have seen a continual rise in temperatures in Central Europe, which has necessitated new research on cultivation of pulse crops.…”

Section: Introductionmentioning

confidence: 99%

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Development and production response of edible and forage varieties of pea (Pisum sativum L.) to temporary soil drought under different levels of phosphorus application

Klimek-Kopyra¹,

Skowera²,

Zając³

et al. 2016

Acta Agrobot

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The change in weather conditions in Central Europe has led to the need to review current standards for fertilization of pulse crops. Physiologists claim that phosphorus may play a significant role in raising tolerance to a temporary lack of water in the soil. The objective of the 2-year field study (2011)(2012) was to assess the effect of phosphorus application on characteristics of the aerial and underground plant parts of different varieties of pea and elements of their yield structure. The study showed that a higher phosphorus application rate led to significant intensification of photosynthesis and thus to more rapid vegetative development in the plants, manifested as a greater number of leaves and greater leaf area. The higher rate of phosphorus application significantly influenced the flowering process of pea during soil drought. The number of flowering nodes increased significantly as phosphorus application increased. The plants fertilized with the higher level of phosphorus produced a greater weight of root nodules with more Rhizobium bacterial colonies. Increased phosphorus fertilization had a significant role during the year of permanent semi-drought, 2012, resulting in a significantly greater number and weight of pods as well as a greater number and weight of seeds per plant, and thus a larger final yield.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development and production response of edible and forage varieties of pea (Pisum sativum L.) to temporary soil drought under different levels of phosphorus application

Klimek-Kopyra¹,

Skowera²,

Zając³

et al. 2016

Acta Agrobot

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“…However, in the triple seed pods, the largest seed mass is gained in the central part of the pod. Furthermore, node position on the main stem (Atta et al, 2004), cultivar and weather conditions (Zając et al, 2013;Dacko et al, 2016) influence the seed dry weight. Zając et al (2013) and Dacko et al (2016) supported the above study, claiming that cultivars and weather conditions have the largest impact on seed weight.…”

Section: Model Resultsmentioning

confidence: 99%

“…Furthermore, node position on the main stem (Atta et al, 2004), cultivar and weather conditions (Zając et al, 2013;Dacko et al, 2016) influence the seed dry weight. Zając et al (2013) and Dacko et al (2016) supported the above study, claiming that cultivars and weather conditions have the largest impact on seed weight. Zając et al (2013) proved that biometrical parameters of pods revealed considerable differences between the pea cultivars.…”

Section: Model Resultsmentioning

confidence: 99%

“…In most seed crops, individual seed weight is commonly analysed as the product of the individual seed growth rate and the duration of seed formation (Munier-Jolain et al, 1998). Dacko et al (2016) reported that the single peaseed mass is affected mostly by the following predictors: 'K index', which describes the hydrothermal conditions during pea sowing-emergence and emergence-maturity periods; 'length of pod'; and 'cultivar', an optimal K index and longer pods are associated with a higher seed mass. Gorden et al (2016) confirmed the above findings and proved, basing on the seed size model, that the seed size is strongly related to climate diversity.…”

Section: Introductionmentioning

confidence: 99%

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Ordinal regression model for pea seed mass

Klimek-Kopyra

Strojny

Zając

et al. 2017

Die Bodenkultur: Journal of Land Management, Food and Environment

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SummaryThe development of seeds at various positions in the pod is asynchronous. Thus, the differences of seed dry mass production because of environmental conditions may depend on the cultivar type, type of inoculants and interrelations between seeds per pod, pods per plant or seeds per plant. Presently, a mathematical description of pea seed categorisation is missing. The aim of the study was the assessment of two groups of variables (quantitative and qualitative) for pea seed weight categorisation by ordinal regression model. Year, cultivar and inoculant constituted the first group (qualitative variables), whilst seeds per pod, the pods per plant and seeds per plant (quantitative variables) were entered as covariates in the ordinal regression model. According to the ordinal regression model variables, seeds per pod, pods per plant, seeds per plant, year and cultivar are meaningful predictors of the seed mass categories. However, the variable inoculant is marginally significant. Keywords

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N₂Fixation in Biofertilizers

2021

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New approach to determine biological and environmental factors influencing mass of a single pea (Pisum sativum L.) seed in Silesia region in Poland using a CART model

Cited by 25 publications

References 31 publications

Development and production response of edible and forage varieties of pea (Pisum sativum L.) to temporary soil drought under different levels of phosphorus application

Development and production response of edible and forage varieties of pea (Pisum sativum L.) to temporary soil drought under different levels of phosphorus application

Ordinal regression model for pea seed mass

N₂Fixation in Biofertilizers

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New approach to determine biological and environmental factors influencing mass of a single pea (Pisum sativum L.) seed in Silesia region in Poland using a CART model

Cited by 25 publications

References 31 publications

Development and production response of edible and forage varieties of pea (Pisum sativum L.) to temporary soil drought under different levels of phosphorus application

Development and production response of edible and forage varieties of pea (Pisum sativum L.) to temporary soil drought under different levels of phosphorus application

Ordinal regression model for pea seed mass

N2Fixation in Biofertilizers

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Product

Resources

About

N₂Fixation in Biofertilizers