Yield Performance and Adaptation of Promising Amphibious Red Rice Lines on Six Growing Environments in Lombok, Indonesia

Abstract

The objectives of this study were to examine yield performance of promising amphibious red rice lines, and to evaluate their adaptability to six growing environments in Lombok, Indonesia. Ten promising amphibious red rice lines were tested together with their three parents and one national cultivar (Aek Sibundong), during the rainy extended to dry season 2014 (JanuaryJune 2014). The ten promising lines were obtained from two population sources, while the three parents were AKBC52, AKBC86, and a local cultivar, i.e. Kala Isi Tolo (KIT). The testing environments were lowland in Mambalan village (West Lombok), medium highland in Mantang village (Central Lombok), and highland in East Sembalun village (East Lombok), and each location consisted of two systems, i.e. flooded and dry (upland) systems. The experiment in each environment was designed according to Randomized Complete Block Design, with three replications and 14 genotypes as the treatments. Adaptation analysis was based on ANOVA using AMMI and Biplot. The results indicated that among the 14 genotypes, showed the highest yield, with an average of 7.8 t ha -1 dry seeds. There was a significant Genotype x Environment interaction on the dry seed yield. Biplot analysis indicated that G2(F2BC4A52-44) and G8(F2BC4A52-37) were stable genotypes across locations.

Additive intercropping with peanut increases growth and yield of various promising lines of red rice under aerobic irrigation system on permanent raised-beds

“…Among those promising lines, G21 produced the highest yield. Previous studies also confirmed that the highest yield was also in the G21 line, which is the AM10 amphibious red rice line [10], which also reported to show the highest grain yield in irrigated paddy system, whose treatment code was G10(F2BC4A52-42), which had average yield of 7.8 tons/ha [11].…”

“…The main plot factor was red rice line comprising four genotypes (G04, G10, G15 and G21) while the subplot factor was intercropping comprising two treatments (T0= monocropped rice, T1= rice-peanut intercropping). Among the four red rice promising lines tested, two were upland rice lines (G04 and G10), and two lines (G15 and G21) were amphibious red rice lines resulted from previous research [11].…”

Increasing Yield Components of Several Promising Lines of Red Rice through Application of Mycorrhiza Bio-Fertilizer and Additive Intercropping with Soybean in Aerobic Irrigation System

“…Formation of raised-beds, planting of pre-germinated red rice seeds, fertilizer application, mycorrhiza application, application of irrigation water, and harvest of the red rice were done exactly the same as those explained in Wangiyana et al [13], except for the dose of Phonska (NPK 15-15-15) fertilizer, which was full doses in this experiment. The red rice genotypes used were also the same as those explained in Wangiyana et al [13], which were previously selected from 11 promising lines of upland red rice genotypes and 12 promising lines of amphibious red rice genotypes [14]. The other difference was that there was an intercropping treatment in this experiment, i.e.…”

Effect of Relay-Planting Several Legume Species at Various Ages of Rice on Growth and Yield of Red Rice Grown Together with Legume Crops under Aerobic Irrigation System

“…For this experiment, each pot was filled with 7 kg air-dried soil that has been sieved with 2 mm opening sieve, and watered up to the field capacity. The red rice genotype used in this study was the promising amphibious red rice line "F2BC4A86-3" (or "AM-G4") selected from results of a previous research [2]. For planting the red rice, seeding the pre-germinated AM-G4 seeds was done in a seedling tray filled with a mixture of soil and rice husk ash (1:1), which was thinned after one week to allow only two seedlings to grow per hole of the seedling tray.…”

“…Over the past few years, the need for red rice has continued to increase in accordance with the increasing people's awareness on the importance of health and recognition of the health benefit from consuming red rice instead of white rice. However, most of the existing red rice varieties are upland rice varieties, which are generally low in their average productivity [2]. Therefore, it is necessary to increase the productivity of red rice through application more productive rice cultivation technologies, one of which is by growing red rice under aerobic irrigation techniques, which was called as aerobic rice systems (ARS) [3].…”