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Martinez-Eixarch, MCorresponding AuthorCatala, MdAuthorTomas, NAuthorPla, EAuthor
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Tillering and yield formation of a temperate Japonica rice cultivar in a Mediterranean rice agrosystem

Publicated to:Spanish Journal Of Agricultural Research. 13 (4): e0905- - 2015-12-01 13(4), DOI: 10.5424/sjar/2015134-7085

Authors: Martínez-Eixarch, M; Català, MD; Tomàs, N; Pla, E; Zhu, DF

Affiliations

Aigües Marines i Continentals. IRTA Investigación y Tecnología Agroalimentarias - Author
China Natl Rice Res Inst, Res & Dev Ctr Rice Prod Technol, Hangzhou 310006, Zhejiang, Peoples R China - Author
Cultius Extensius Sostenibles. IRTA Investigación y Tecnología Agroalimentarias - Author
IRTA Inst Food & Agr Res & Technol, Field Crops Program, Amposta 43870, Spain - Author
Producció Animal. IRTA Investigación y Tecnología Agroalimentarias - Author
Producció Vegetal. IRTA Investigación y Tecnología Agroalimentarias - Author
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Abstract

Rice tillering is a crucial stage for yield formation. Deep understanding of the relationship between tillering dynamics and yield formation in a particular agrosystem is crucial to boost rice productivity. Research on rice tillering is mainly focused on tropical agrosystems whereas less is done in the Mediterranean, with direct water-seeding and Japonica cultivars. This study aims at characterizing tillering dynamics and identifying the main explanatory tillering traits of yield in a Mediterranean rice agrosystem, Ebro Delta (Northern Spain). A temperate Japonica cultivar grown in Spain, Gleva, was utilized. Plants and tillers were tagged to assess emergence and fertility ratios and grain yield; while changes in tillering number over time, yield and yield components for unit area were measured. Plant and tillering dynamics in the Ebro Delta rice fields can be accurately predicted through equations herein provided, which are based either on thermal time or leaf development. Plants grown under regional standard agricultural practices produced up to eight primary tillers of which two or three become productive. Maximum tiller number was the main explanatory variable of yield while high-yielding tillers within a plant are located on nodes with the highest emergence ratios and, after the main stem, they are the major contributors to yield. The decisive role of tiller development on yield along with the predictability of tiller dynamics raises options to optimize grain yield through tillering modulation. In this sense, results from this study suggests the promotion of early tillering followed by inhibition of late tillering as a strategy of tillering regulation.

Keywords
direct-seeded riceearly growthelite inbredsemergencegrain-sorghumleaf-area productionmain stemspring wheatwide-rangeCurve fittingEmergenceFertilityHigher crop performanceOryza sativa lSynchronyTiller orderTillering dynamicsYield formation

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Spanish Journal Of Agricultural Research due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2015, it was in position 24/57, thus managing to position itself as a Q2 (Segundo Cuartil), in the category Agriculture, Multidisciplinary. Notably, the journal is positioned en el Cuartil Q2 para la agencia Scopus (SJR) en la categoría Agronomy and Crop Science.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-05-17:

  • WoS: 2
  • Scopus: 6
  • OpenCitations: 2
Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-05-17:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 31 (PlumX).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Additionally, the work has been submitted to a journal classified as Diamond in relation to this type of editorial policy.
Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: China.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (MARTINEZ EIXARCH, MA. TERESA) .

the author responsible for correspondence tasks has been MARTINEZ EIXARCH, MA. TERESA.