Physicochemical Properties and Eating Quality of Promising Crossbred Upland Rice Lines Developed From Superior Parental Genotypes

Abstract

The ultimate objective of breeding is to produce high-yielding cultivars that are fascinating to the farming community and end users, allowing for easy marketing. Therefore, it is crucial to conduct various tests on milling quality, physicochemical properties, and eating quality to determine the overall rice quality and evaluate the response of potential consumers. The presented study sought the complete rice quality and the consumer acceptance of 12 upland rice lines derived from superior parental genotypes. This research conducted in 2019 performed milling and eating quality assessments on milled and cooked rice, respectively. The milling quality analysis revealed that lines L-04, L-05, and L-06 produced middle-length grains, while others produced full-length grains. Rice from lines L-02, L-09, and L-12 were slender, while the rest were medium-shape. All upland rice lines also met the national standard (SNI 6128-2015) for milling degree (85%–100%), moisture content (9.85%–11.30%), chalky rice (0.06%–1.59%), and yellow rice (0.21%–1.77%). Lines L-03 and L-05 met the Medium-I quality standard with head rice recovery (HRR) values of 84.15% and 84.76%, respectively. However, lines L-01 and L-02 met the Medium-III standard with HRR values of 66.24% and 66.39%, separately. Principal Component Analysis (PCA) revealed four principal physicochemical characteristics, i.e., degree of milling, length, width, and HRR. Partial Least Squares Regression (PLSR) analysis displayed the overall liking as determined by the interaction of four descriptive factors, mostly taste and texture. Cooked rice of line L-12 (cross of cv. Inpago-8 × B11930F-TB-2) was the most liked compared with other cooked rice samples.

Improving Coloured Rice Grain Quality Through Accelerated Breeding

“…In the BC 2 populations of VNIIR 10163/Alliance/Alliance (13.3.7) and Khaw-srinin /Kurazh//Kurazh (15.1.3), the heterosis related to one of the parental forms. Thus, germplasm screening is a tool for fast-forming pre-breeding rice resources in the direction of breeding for grain quality (Tumanyan et al, 2016;Mulyaningsih et al, 2023). The acceleration of the breeding scheme was possible using artificial climate chambers.…”

Pre-Harvest Dark Spots Harm the Rice Grains Qualitatively and Quantitatively

“…In Russia, the issue of stink bugs that cause dark spots on rice grains has yet to reach an unambiguous resolution. Significant damage in the rice yield was apparent in 2012 in the Krasnodar region, Russia, up to 20%-30%, decreasing the profitability of rice growing (Tumanyan et al, 2021;Mukhina et al, 2022;Mulyaningsih et al, 2023). Federal Scientific Rice Centre, Krasnodar, Russia, monitors the intensity of grain damage in different rice farms of the region and also evaluates the rice breeding material in connection with the "rice black spot" (Chizhikova et al, 2014).…”

“…Such grains bore rejection during processing since it is already unmarketable during grinding, and the damaged areas will remain in the polished rice. For the first time, risk groups with pecky rice were distinguishable according to the degree of damage depending on the infection period, i.e., surface type, medium degree, and extensive damage to rice grains (Mulyaningsih et al, 2023).…”