Relationship Between Root and Yield Related Morphological Characters in Pea (Pisum Sativum L.)

AbstractRelation between morphological traits of the root system and yield related traits is an important issue concerning efforts aiming at improving of ideotype of cultivated plants species, including pea. In this paper, to analyse the dependency between traits describing the root system morphology and yield potential, Person’s andSpearman's_correlations as well as canonical correlations were used.Root system was analyzed in 14 and 21 day-old seedlings growing in blotting-paper cylinders. Yield potential of pea was analysed in a field experiment. Results of Person’s and Spearman's_correlations revealed that number of lateral roots and lateral roots density were correlated witch yield related traits. Correlation between root length and shoot length was observed only for 14 day-old seedlings. The result of canonical correlations revealed that number of lateral roots and lateral roots density had the largest effect on yield related traits. This work highlights, that in order to improve the yield of pea it might become necessary to understand genetic determination of morphological traits of the root system, especially number of lateral roots.

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Cohort effect on discriminant rate: the case of greater flamingo (<i>Phœnicopterus roseus</i>) chicks sexed with morphological characters

Web Ecology ◽

10.5194/we-20-153-2020 ◽

2020 ◽

Vol 20 (2) ◽

pp. 153-159

Author(s):

Abdennour Boucheker ◽

Riad Nedjah ◽

Roger Prodon ◽

Mark Gillingham ◽

François-Xavier Dechaume-Moncharmont ◽

...

Keyword(s):

Discriminant Function ◽

Discriminant Function Analysis ◽

Function Analysis ◽

Cohort Effect ◽

Morphological Characters ◽

Genetic Determination ◽

One Year ◽

Breeding Seasons ◽

Number Of Individuals

Abstract. We used a large dataset of greater flamingo chicks banded and measured at Camargue, France, to verify the applicability of discriminant function analysis to sex this species. Males and females sexed genetically differed significantly in all of the morphological characters measured (body mass, tarsus and wing length), with males being significantly larger than females. Although the discriminant rate varied substantially from one year to another, we found that it increased with the sample size of genetically sexed individuals. Our results suggest that discriminant function analysis (DFA) does not provide an efficient tool to sex greater flamingo chicks as these relationship are highly variable across years, requiring the genetic determination of sex on a large number of individuals every year for calibrating the DFA and still providing an overall low accuracy in sex determination. Indeed, conditions at breeding seasons can vary between years and can be considered proximate causes affecting the correct discriminant rate. Like previous studies, we recommend caution in dealing with discriminant equations computed from small datasets, and our simulation suggests that 325 genetically sexed individuals are needed to obtain 80 % correctly classified greater flamingo chicks.

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Correlation and path analysis between yield and different morphological characters in Kinnow Mandarin (C. Noballis × C. Deliciosa)

Journal of Applied and Natural Science ◽

10.31018/jans.v10i2.1774 ◽

2018 ◽

Vol 10 (2) ◽

pp. 759-764

Author(s):

Geeta Verma ◽

P.K. Mahajan ◽

Anju Sharma

Keyword(s):

Direct Effect ◽

Morphological Characters ◽

Fruit Weight ◽

Yield Potential ◽

Path Coefficient ◽

Branch Number ◽

Effect Analysis ◽

Correlation And Path Analysis ◽

Effect On Yield ◽

Kinnow Mandarin

A study of interrelationship and cause-effect analysis of yield of Kinnow Mandarin (C. Noballis × C. deliciosa) and its component traits for 104 and 96 trees from Indora (Location L-1) and Indpur (Location L-2) blocks of Kangra district respectively had been done in 2014-15. F-test suggested that there was significant (1.47) variation among yield characteristics between these two locations except for fruit weight (gm) and LD ratio. Results obtained from path coefficient analysis, showed that for location L-1, number of fruits per branch (0.229), plant height (0.215) and tree girth (0.212) had highest and direct effect on yield per tree whereas for location L-2, fruit weight (0.38), number of flowers per branch (0.176) and plant girth (0.161) had highest direct effect on yield per plant. Thus, number of fruits per branch, number of flowers per branch and tree girth were the most important yield components of kinnow crop which should be exploited through a breeding programme for improving its yield potential.

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GENETIC DETERMINATION OF FIELD GERMINATION ABILITY IN SEEDS OF INTERSPECIFIC HYBRIDS OF Triticum aestivum x T. durum Desf.

Sel skokhozyaistvennaya Biologiya ◽

10.15389/agrobiology.2012.3.61eng ◽

2012 ◽

pp. 61-67

Author(s):

N.A. Zharkov ◽

Keyword(s):

Triticum Aestivum ◽

Interspecific Hybrids ◽

Genetic Determination ◽

Germination Ability ◽

Field Germination

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Тhe ecologic-genetic determination of quantitative growth signs of some species of genus Albizia Durazz in the conditions of introduction on the Southern coast of the Crimea

Proceedings of the Kuban State Agrarian University ◽

10.21515/1999-1703-67-174-178 ◽

2017 ◽

Vol 1 (67) ◽

pp. 174-178

Author(s):

Yuriy Plugatar ◽

◽

Vladimir Koba ◽

Vladimir Gerasimchuk ◽

Vladimir Papelbu ◽

...

Keyword(s):

Southern Coast ◽

Genetic Determination ◽

The Crimea

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Utilization of a hydrate cellulose film for investigation of Arabidopsis thaliana L. root system growth and development

Biotekhnologiya ◽

10.21519/0234-2758-2020-36-1-36-43 ◽

2020 ◽

Vol 36 (1) ◽

pp. 36-43

Author(s):

I.O. Konovalova ◽

T.N. Kudelina ◽

S.O. Smolyanina ◽

A.I. Lilienberg ◽

T.N. Bibikova

Keyword(s):

Arabidopsis Thaliana ◽

Root System ◽

Life Support ◽

Higher Plants ◽

Plant Root ◽

Lateral Roots ◽

Basic Research ◽

Cellulose Film ◽

A New Technique ◽

Basic Research Project

A new technique for Arabidopsis thaliana cultivation has been proposed that combines the use of a phytogel-based nutrient medium and a hydrophilic membrane of hydrate cellulose film, separating the root system of the plant from the medium thickness. Growth rates of both main and lateral roots were faster in the plants cultivated on the surface of hydrate cellulose film than in the plants grown in the phytogel volume. The location of the root system on the surface of the transparent hydrate film simplifies its observation and analysis and facilitates plant transplantation with preservation of the root system configuration. The proposed technique allowed us to first assess the effect of exogenous auxin on the growth of lateral roots at the 5-6 developmental stage. methods to study plant root systems, hydrate cellulose film, A. thaliana, lateral roots, differential root growth rate, auxin The work was financially supported by the Russian Foundation for Basic Research (Project Bel_mol_a 19-54-04015) and the basic topic of the Russian Academy of Sciences - IBMP RAS «Regularities of the Influence of Extreme Environmental Factors on the Processes of Cultivation of Higher Plants and the Development of Japanese Quail Tissues at Different Stages of its Ontogenesis under the Conditions of Regenerative Life Support Systems».

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Silicon Effects on the Root System of Diverse Crop Species Using Root Phenotyping Technology

Plants ◽

10.3390/plants10050885 ◽

2021 ◽

Vol 10 (5) ◽

pp. 885

Author(s):

Pooja Tripathi ◽

Sangita Subedi ◽

Abdul Latif Khan ◽

Yong-Suk Chung ◽

Yoonha Kim

Keyword(s):

Root System ◽

Root Morphology ◽

Morphological Traits ◽

Crop Production ◽

Spatial Configuration ◽

Global Climate ◽

Learning Technologies ◽

Climate Change Scenarios ◽

Crop Species ◽

Wide Range

Roots play an essential function in the plant life cycle, as they utilize water and essential nutrients to promote growth and plant productivity. In particular, root morphology characteristics (such as length, diameter, hairs, and lateral growth) and the architecture of the root system (spatial configuration in soil, shape, and structure) are the key elements that ensure growth and a fine-tuned response to stressful conditions. Silicon (Si) is a ubiquitous element in soil, and it can affect a wide range of physiological processes occurring in the rhizosphere of various crop species. Studies have shown that Si significantly and positively enhances root morphological traits, including root length in rice, soybean, barley, sorghum, mustard, alfalfa, ginseng, and wheat. The analysis of these morphological traits using conventional methods is particularly challenging. Currently, image analysis methods based on advanced machine learning technologies allowed researchers to screen numerous samples at the same time considering multiple features, and to investigate root functions after the application of Si. These methods include root scanning, endoscopy, two-dimensional, and three-dimensional imaging, which can measure Si uptake, translocation and root morphological traits. Small variations in root morphology and architecture can reveal different positive impacts of Si on the root system of crops, with or without exposure to stressful environmental conditions. This review comprehensively illustrates the influences of Si on root morphology and root architecture in various crop species. Furthermore, it includes recommendations in regard to advanced methods and strategies to be employed to maintain sustainable plant growth rates and crop production in the currently predicted global climate change scenarios.

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Lateral root formation and nutrients: nitrogen in the spotlight

Plant Physiology ◽

10.1093/plphys/kiab145 ◽

2021 ◽

Author(s):

Pierre-Mathieu Pélissier ◽

Hans Motte ◽

Tom Beeckman

Keyword(s):

Signaling Pathways ◽

Root System ◽

Root Development ◽

Lateral Root ◽

Molecular Mechanisms ◽

Root Formation ◽

Lateral Roots ◽

Nutrient Use Efficiency ◽

Lateral Root Formation ◽

Lateral Root Development

Abstract Lateral roots are important to forage for nutrients due to their ability to increase the uptake area of a root system. Hence, it comes as no surprise that lateral root formation is affected by nutrients or nutrient starvation, and as such contributes to the root system plasticity. Understanding the molecular mechanisms regulating root adaptation dynamics towards nutrient availability is useful to optimize plant nutrient use efficiency. There is at present a profound, though still evolving, knowledge on lateral root pathways. Here, we aimed to review the intersection with nutrient signaling pathways to give an update on the regulation of lateral root development by nutrients, with a particular focus on nitrogen. Remarkably, it is for most nutrients not clear how lateral root formation is controlled. Only for nitrogen, one of the most dominant nutrients in the control of lateral root formation, the crosstalk with multiple key signals determining lateral root development is clearly shown. In this update, we first present a general overview of the current knowledge of how nutrients affect lateral root formation, followed by a deeper discussion on how nitrogen signaling pathways act on different lateral root-mediating mechanisms for which multiple recent studies yield insights.

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