Vol. 12, Issue 1 (2023)

Author(s):
Pooja S, Md. Farooq, VB Narayanapur, VP Singh, Lokesh MS, RB Chittapur and SY Ryavalad

Abstract:
Ajwain is seed spice which is cultivated mainly for its seed, herb and volatile oil. Analysis of variance among 28 ajwain genotypes indicated that all the genotypes were significantly different with respect to all the characters studied. Wide variability existed among the genotypes for all the morphological and yield traits. Minimum days to germination was noticed in AZ-1 (9.75), whereas the higher plant height at 150 DAS was recorded in RM (96.83 cm). AA-93 recorded the highest number of branches per plant (18.18). The minimum days taken for commencement of flower initiation (10%) was observed in AZ-1 (66.00). Minimum days taken for commencement of 50 per cent flowering was observed in AZ-1 (77.25). The highest number of flowers per umbellates was observed in HUB-8 (23.85). The minimum days taken for harvest was recorded in AZ-1 (128.50). AZ-1 showed the highest number of umbels in an individual plant is 302.25. AZ-1 showed the highest number of umbellates per umbel (14.90). HUB-8 showed the highest number of seeds per umbel (280.00). The genotype AZ-1 showed the highest seed yield per plant (11.96 g). AZ-1 recorded maximum harvest index (%) of (38.27%). The maximum test weight was observed in HUB-8 (1.83 g). The highest essential oil content was recorded in RM (2.30%) whereas the oleoresin content was recorded in DAC-5 (6.65%) and the maximum thymol content was found in the DAC-5 (49.61%).