Newly introduced high-yielding rice varieties were not accepted by farmers, who preferred to use the common local varieties. The decline in acreage of newly introduced varieties has changed research priorities to match improved rice varieties with consumer preferences for rice breeding programs. The first generation and its parents, gene action, and combining ability of various traits were evaluated in 2005. Simultaneously with the cleaning of lines in each breeding population, three backcrosses (with abbreviations BC4, BC9 and BC25) were selected from the 38 original crosses and simulated with the returning parent with 4 crosses. By testing the selected lines in 2012 in a preliminary yield trial, 8 lines were selected. The multisite trial was conducted in the form of randomized complete block experiment with 3 replications at three locations including Rasht, Abkenar and Chaparsar in two cropping years (2013-2014). The GGE biplot results showed that the first two components explained 65% and 27% of the data changes. The stability or two dimensional axis plot of average tester coordinates showed that BC9, BC25, RI18436-46 and Saleh genotypes had high yield and high stability, BC4 had high yield and medium stability. BC4 was selected as superior genotype having medium stability and high grain yield (5.25 tons per hectare), suitable growing period (112.5 days), medium amylose content (20.5%) and optimum plant height (107.5 cm). Line BC4 is considered one of the early and dwarf varieties and has the same cooking quality as local Iranian varieties. This new line was introduced in Iranian agriculture in 2016 under the name Gilaneh. The cultivated area of this variety increased from 10 hectares in 2016 to 2029 hectares in 2019.
Graphical Abstract
Highlights
Research priorities of rice breeding programs changed due to decreasing cultivation area of newly released varieties.
Targeted mating design performed aimed to improve a variety with high yielding and high grain quality.
The BC4 line, as a result of 12 years of breeding is considered one of the early and dwarf varieties and has the same cooking quality as local Iranian varieties.
This new line was introduced to the Iranian agricultural community in 2016 under the name of Gilaneh.
Allahgholipour, M., & Haghighi Hasanalideh, A. (2021). Gilaneh, an improved rice cultivar with high grain quality through backcrossing. Central Asian Journal of Plant Science Innovation, 1(3), 160-170. doi: 10.22034/CAJPSI.2021.03.04
MLA
Mehrzad Allahgholipour; Alireza Haghighi Hasanalideh. "Gilaneh, an improved rice cultivar with high grain quality through backcrossing". Central Asian Journal of Plant Science Innovation, 1, 3, 2021, 160-170. doi: 10.22034/CAJPSI.2021.03.04
HARVARD
Allahgholipour, M., Haghighi Hasanalideh, A. (2021). 'Gilaneh, an improved rice cultivar with high grain quality through backcrossing', Central Asian Journal of Plant Science Innovation, 1(3), pp. 160-170. doi: 10.22034/CAJPSI.2021.03.04
VANCOUVER
Allahgholipour, M., Haghighi Hasanalideh, A. Gilaneh, an improved rice cultivar with high grain quality through backcrossing. Central Asian Journal of Plant Science Innovation, 2021; 1(3): 160-170. doi: 10.22034/CAJPSI.2021.03.04
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