MOHAMMAD SHAFIQURRAHAMAN, G. S. DAHIYA, S. K. PAHUJA, A. K. DEHINWAL AND R. K. ARYA*
Department of Genetics and Plant Breeding,
Chaudhary Charan Singh Haryana Agricultural University, Hisar (Haryana), India
*(e-mail : rakarayogi@gmail.com, rahaman333@gmail.com)
(Received : 20 February 2022; Accepted : 12 March 2022)
SUMMARY
The experimental material for the DUS characterization was consisted of 150 sorghum germplasm lines. Based on the variation observed in this character, seedling anthocynin coloration it was distinguished into two categories namely, yellow green (65 genotypes) and grayed purple (85 genotypes). At 5th leaf stage genotypes were characterized on the basis of two characters, leaf sheath anthocyanin colouration and leaf midrib colour. On the basis of leaf sheath anthocyanin colouration, the genotypes were categorized into two categories: yellow green (65 genotypes) and grayed purple (85 genotypes). On the basis of leaf midrib colour, the genotypes were categorized into two groups: white (49 genotypes) and yellow green (101 genotypes).On the basis of panicle emergence (50% of plants with 50% flowering), the genotypes were grouped into five categories viz., very early (13 genotypes), early (16 genotypes), medium (56 genotypes), late (47 genotypes) and very late (18 genotypes) for time of panicle emergence. On the basis of lemma arista formation, the genotypes are broadly into two categories: lemma arista present (63 genotypes) and absent (87 genotypes). Based on flower with pedicel length of flower, the genotypes were divided into five categories viz., very short (4 genotypes), short (12 genotypes), medium (53 genotypes), long (71 genotypes) and very long (10 genotypes. Based on anther length, the genotypes were divided into two categories viz., short (125 genotypes) and medium (25 genotypes). On the basis of glume colour, the genotypes were categorized into six groups viz., green white (22 genotypes), yellow white (40 genotypes), grayed yellow (18 genotypes), grayed orange (44 genotypes), grayed red (20 genotypes), grayed purple (6 genotypes). On the basis of panicle length of branches, the genotypes were categorized into two groups viz., short (141 genotypes) and medium (9 genotypes). On the basis of panicle density at maturity, the genotypes were divided into four categories viz., very loose (17 genotypes), semi loose (29 genotypes), semi compact (62 genotypes) and compact (42 genotypes). On the basis of neck of panicle visible above sheath, the genotypes were grouped into five groups namely, very short (54 genotypes), short (40 genotypes), medium (29 genotypes), long (18 genotypes) and very long (9 genotypes)
Key words: Sorghum, Sorghum bicolor, DUS chracterization, morphological traits