Yield Test Results of Rice Superior Varieties in Swampland of South Lampung

Abstract

The rice commodity is still the main foundation for national food security. Efforts are made to increase rice production to maintain food stability. Superior rice varieties are a solution to increase production. Swampland can be an alternative option for producing rice. This study aims to determine the test results of several rice varieties yield grown in swampland. The study was carried out in Rawa Selapan Village, Candipuro District, South Lampung Regency on 3rd planting season in 2018. The area for planting is 2 ha. Three high yielding rice varieties studied were Ciherang, Inpara-2, and Inpari-42 GSR. Paddy cultivation used rice paddy Integrated Crop Management (ICM) technology which spacing was 25 cm x 25 cm (according to local conditions). Plants are fertilized according to soil conditions where Urea was given 150 kg ha- 1, SP-36 100 kg ha-1, and KCl 75 kg ha-1. Rice harvest was done after 95% of panicles turn yellow. Observation variables include components of vegetative and generative growth. The results of the study showed that the new superior rice variety Inpari 42 GSR gave the highest production of 9796.11 kg ha-1 Harvested Dry Grain (HDG). The average yield of Ciherang variety was 7238.57 kg ha-1 HDG and Inpara-2 variety was 6074.29 kg ha-1 HDG. Grain water content conditions after harvest was 14-15%. Rice cultivation technology using new superior varieties of Inpari 42 GSR has high potential to be implemented and adapted in swampland where the land conditions are always inundated.