Abstract
Rice varieties with high production and early age in the highlands paddy fields have not much breeding results. Rice production is affected by low temperature and humidity. This study aimed to obtain high yielding and early maturing rice varieties among several varieties cultivated at Kerinci. This research was conducted on paddy fields in Kerinci Jambi district with an altitude of 800-950 meter above sea level. Time series were carried out from 2017, 2018, 2019 using the adaptive highland rice varieties Inpari 28 Kerinci, Sarinah, Inpari 30 and Inpari 32 cropping systems jajar legowo. The results showed that the Inpari 28 Kerinci variety had a production 7.46 t ha-1 followed by Sarinah 6.83 then Inpari 30 as much as 6.47 t ha-1 and Inpari 32 as much as 6.17 t ha-1. Inpari 28 Kerinci variety and shorter maturity with a harvest age of 96-105 days after transplanting.
Highlights
Rice farmers face challenges like drying up of irrigation water sources, conversion of wetland to dryland due to developmental activities, paddy fields getting fallowed over time, multifold increase in wages and the younger generation not taking up farming
Data shows that eleven countries of Asia contribute about 87% of the global rice production and Asia significantly contributes in achieving global food security [2]
Rice sector is hit by challenges like drying out of irrigation water, unpredictable precipitation and, potential rice fields being fallowed – all attributed to climate change and global warming
Summary
Rice farmers face challenges like drying up of irrigation water sources, conversion of wetland to dryland due to developmental activities, paddy fields getting fallowed over time, multifold increase in wages and the younger generation not taking up farming. The rice sector is hit by many abiotic, biotic and socioeconomic constraints that hinder its production [3] Among biotic stresses, revealed that weather is the most important determinant of growth, yield and production of rice [4]. Rice sector is hit by challenges like drying out of irrigation water, unpredictable precipitation and, potential rice fields being fallowed – all attributed to climate change and global warming [5] limited wetland, use of low yielding traditional varieties, inadequate inorganic fertilizer inputs, insufficient irrigation water and labor shortage are the main factors leading to the low productivity of rice in Indonesia [6]. Of the area reportedly only 0.50 million hectares used for rice fields with an average rice yield ranging from 2.5-5.0 t ha-1 [8].
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