Effect of water stress on the ratoon crop (Oryza sativa L.). First Part

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Published: Apr 9, 2019
Keywords:
rice, water, whole grains, panicles, industrial quality

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Ricardo Polón-Pérez
Unidad Científica Tecnológica de Base (UCTB) “Los Palacios”

Abstract

The research was conducted at the Los Palacios Base Scientific and Technological Unit, from 2014 to 2017, on a Gleysol Nodular Ferruginous Petroferric soil, to know the effect of water stress on the ratoon crop in the medium cycle variety J-104. The results showed that in the new variant of managing water (water stress with ratoon) significantly outperformed the control production variant, obtaining the highest agricultural and industrial yields of the grain, which ranged between 4.7 and 5.8 t. ha-1 and 63.3 and 67.3% whole grains respectively for a height of cut of the plant of 5 cm; whereas, the lowest agricultural and industrial yields ranged between 3.1 and 4.4 t.ha-1 and 60.0 and 67.8% of whole grains respectively for the control variant with a height of cut of the plant 20 cm. Water consumption was always lower in the new variant than in the control variant during the years of study, this indicator being very important as an irrigation water economy, a decisive resource for rice production. The industrial quality of the grain was always higher in the variant with water stress in the ratoon crop compared to the control variant; parameters that decide if a rice variety is accepted commercially.

Article Details

How to Cite
Polón-Pérez, R. (2019). Effect of water stress on the ratoon crop (Oryza sativa L.). First Part. Revista Ciencias Técnicas Agropecuarias, 28(2). Retrieved from https://revistas.unah.edu.cu/index.php/rcta/article/view/1115
Issue
Vol. 28 No. 2 (2019): April- May- June
Section
Original Articles

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