Vol. 8, Issue 4 (2019)

Author(s):
Lokesh Gour, GK Koutu, Yogendra Singh and SK Singh

Abstract:
Distinctness, Uniformity and Stability test are now become a important tool for cataloguing the germplasm and utilization of differentials for breeding programme. A total of 83 indigenous rice germplasm were characterized to test the divergence and related qualitative difference present among the lines. Thirty one morphological characters were observed. Basal leaf sheath colour, colour of tip of lemma, lemma & palea colour found highest variation in germplasm. Straw coloured sterile lemma found in 78 lines whereas purple colour found in 04 lines and most unique gold colour found in 01 line. On the basis of pigment distribution in 13 plant parts, the entire germplasm was classified into 23 groups as per DUS guideline. Last XXIII group included four germplasms R-652, R-671, R-714, Shymla which has pigmentation in overall 10 parts (colour of tip of lemma, colour of awns, anthocynin coloration of apex, lemma & palea colour, basal leaf sheath colour, leaf sheath anthocynin coloration, color of stigma, auricle colour, ligule colour, sterile lemma colour). The unique germplasms were found; chhatry germplasm has purple colour of tip of lemma, black colour of tip of lemma has rani kajar, surajone and white colour of tip of lemma has lakna. More study required on those germplasms for pointing out which are the traits that may be particularly referred to as indicators to determine an unstable expression of the phenotype of candidate variety.