AGRIVITA, Journal of Agricultural Science
Vol 44, No 2 (2022)

Continuous Heavy Rainfall and Wind Velocity During Flowering Affect Rice Production

Herdhata Agusta (Department of Agronomy and Horticulture, Bogor Agricultural University (IPB University), Bogor, West Java, Indonesia)
Edi Santosa (Department of Agronomy and Horticulture, Bogor Agricultural University (Scopus ID: 8790748700))
Dulbari Dulbari (Department of Food Crop Production, State Polytechnic of Lampung, Bandar Lampung, Lampung, Indonesia)
Dwi Guntoro (Department of Agronomy and Horticulture, Bogor Agricultural University (IPB University), Bogor, West Java, Indonesia)
Sofyan Zaman (Department of Agronomy and Horticulture, Bogor Agricultural University (IPB University), Bogor, West Java, Indonesia)



Article Info

Publish Date
20 May 2022

Abstract

To mitigate the impact of extreme weather incidents, rice cultivars Way Seputih (WS) and Way Apo Buru (WAB) were evaluated under simulation of continuous wind and rainfall treatments. The research was conducted from July to October 2017 at Leuwikopo Experimental Farm, Bogor, Indonesia. For 15 days at day time, flowering rice hills were treated with about 100 mm/h water shower (Experiment-1), and with 0, 10-15, 20-25 and 35-40 km/h wind velocity (Experiment-2). Results showed that wind and rainfall treatments reduced rice production; the effect depended on the genotypes and flowering stage. Rain treatment from panicle emergence to 50%-emerged increased the number of unfilled grains by 154.6-182.3% and 55.7-101.9% in WS and WAB cultivars, respectively. Rain treatment at 100%-emerged had no effect on WS, but it increased unfilled grain (163.5%) and decreased grain index (12.9%) in the WAB cultivar. Wind speed at 35-40 km/h promoted a high percentage of grain drop (25.7%) and unfilled grains (77.3%), and low grain index (20.8 g) in WS genotype. WAB was more tolerant of wind stress than the WS. The present experiment showed that genotype had different responses to wind and rain treatments implying different mitigation strategies should be applied through genotype selection.

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Journal Info

Abbrev

AGRIVITA

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

AGRIVITA Journal of Agricultural Science is a peer-reviewed, scientific journal published by Faculty of Agriculture Universitas Brawijaya Indonesia in collaboration with Indonesian Agronomy Association (PERAGI). The aims of the journal are to publish and disseminate high quality, original research ...