I S Naruka, Kirtee Nagpure, P P Singh and K S Verma
Posters: Agrotechnol
Dill, popularly known as sowa, is one of the oldest cultivated seed spices of India. There are two species of dill under cultivation i.e. European dill ( Anethum graveolens L.) and another closely related is Indian dill ( Anethum sowa Roxb). The positive effect of environmental factor on growth and yield could be harnessed if the information on optimum time of sowing is made available with the availability of improved varieties. Therefore, a field experiment was conducted during the Rabi season 2012-13 at the research farm, College of Horticulture, Mandsaur (Madhya Pradesh) to study the response of dill ( Anethum graveolens L.) cultivars to different date of sowing. There were twelve treatments in the experiment consisted of four date of sowing viz., 5 th October (D 1 )), 20 th October (D 2 ), 4 th November (D 3 ) and 19 th November (D 4 ), and three cultivars viz., NRCSS AD-1 (V 1 ), NRCSS AD-2 (V 2 ) and local cultivar (V 3 ). The experiment was laid out in factorial RBD design with four replications. The date of sowing significantly influenced the growth, yield and quality attributes of different dill cultivars. Maximum plant height at 40, 80 and 120 DAS, number of branches plant -1 at harvest recorded with sowing on 20 th October in the cultivar NRCSS AD-1 and days to 50% flowering with sowing on 5th October in the cultivar NRCSS AD-1. Minimum days were taken to germination with sowing on 5 th October in NRCSS AD-2 cultivar. Maximum values were recorded in yield and quality attributes such as fresh weight plant -1 at 40, 80 and 120 DAS, dry weight plant -1 at 40, 80 and 120 DAS, number of umbels plant -1 , number of umbellets umbel -1 , number of seeds umbel -1 , test weight, seed yield (q ha -1 ), chlorophyll content in leaves at 60 and 90 DAS (SPAD), with 20 th October in the cultivar NRCSS AD-1. However, maximum biological yield (q ha -1 ), straw yield (q ha -1 ) and essential oil content of seeds were recorded with sowing date of 5 th October in the cultivar NRCSS AD- 1. Maximum gross return, net return and benefit cost ratio was calculated with sowing date 20 th October in the cultivar NRCSS AD-1. However, harvest index (%) was non-significant.