Turkish Journal of Field Crops

Phone:

90 232 311 26 79

Email:

contact@field-crops.org

Address:

2. Beyler İş Hanı, No: 313 Kat: 3 Konak-İzmir

MARKER-ASSISTED DEVELOPMENT OF AN EXTRA-LONG GRAIN AND HIGH YIELDING BASMATI RICE LINE WITH SEMI-ERECT AND DENSE PANICLES

Awais RIAZ, Qasim RAZA, Rana Ahsan Raza KHAN, Fariha SHAHZADI, Mohsin Ali RAZA, Usama Bin KHALID, Ayesha BIBI, Syed Sultan ALI, Muhammad SABAR

Abstract

In light of the rapidly growing global population, there is an urgent need to develop high-yielding and climate[1]resilient rice varieties. The productivity of traditional basmati cultivars is limiting due to region-specific cultivation, and genetic improvements are direly needed to enhance their productivity without compromising quality attributes. This study aimed to develop high yielding basmati advance line with good quality attributes through a marker-assisted selection approach. A cross was attempted between Basmati 515 and IRBB 66, followed by pedigree selection up to the F5 generation. A uniform recombinant inbred line was identified then backcrossed with PK 1121 Aromatic and again followed by pedigree selection up to BC3F5 for desirable genotype development. Genes pyramiding for aroma (BADEX7-5), dense and erect panicles (DEP1), grain length (FMGS[1]7) and grain width (GW8-indel) were achieved using gene-linked markers. The identified line “BLB 18-5001”, predominately harbored agronomic and quality characteristics of Basmati 515, panicle architecture, and grain dimension traits of IRBB 66 and PK 1121 Aromatic, respectively. The BLB 18-5001 outperformed in thousand[1]grain weight (28.5 g), grain yield (4.7 t ha-1), average grain length (9.22 mm), and cooked grain length (19.5 mm) compared to parents. A two-year field evaluation revealed superior agronomic and quality attributes of BLB 18-5001, suggesting an unprecedented genetic potential to meet future varietal demands. This study concludes that the BLB 18-5001 line has overcome the negative correlation between grain quality and yield to some extent and is expected to serve as a valuable breeding source to improve basmati productivity to meet the growing demand for food.

Keyword: Aromatic rice; Gene pyramiding; Food security; Molecular breeding; Rice quality; Varietal development ,

Effects of Different Water Stress Levels on Biomass Yield and Agronomic Traits of Switchgrass (Panicum virgatum L.) Varieties under Semi-Arid Conditio

Erdal GONULAL, Suleyman SOYLU, Mehmet SAHIN

Abstract

A field experiment was conducted in the Wielkopolska region at the Gorzyń Research Station, Poland (52.34°N, 15.54°E) in Central Europe. The study was conducted over a 3-year period (2017, 2018, 2019) as a two-factorial design with four replications in the RCBD. The aim of the research was to determine the effect of the cultivar (‘Bolero’, ‘Tytan’) and the inoculation (Nitragina–seeds inoculation, Nitroflora I–seeds inoculation, Nitroflora II–soil inoculation, HiStick® Lupin–seeds inoculation) on plant development, seeds chemical composition and yielding of narrow-leaved lupin. The weather conditions and experimental factors significantly influenced on productivity of narrow-leaved lupin ‘Tytan’. Drought during the growing season reduced seeds and protein yields. After inoculation of HiStck the seeds yield was significantly greater by 12.4% (p < 0.01) and the protein yield after application of Nitroflora I or HiStick by 13.9% (p < 0.01) and 19.2% (p < 0.01), respectively. Correlation coefficients showed strong relations between number of pods and seeds per plant in both cultivars regardless of the inoculation variant, however the strongest relations in both cultivar were proved on HiStick treatment.
Keyword: Biological nitrogen fixation, chemical composition, legumes, protein efficiency, yielding