Refinement in Cultivar of Indian Mustard for Higher Yield Under Thermal Climatic Condition of Uttar Pradesh

The refinement and assessment based field experiment was laid out during Rabi season of 2002 and 2003 on farmers fields at Mainpuri district under National Agricultural Technology Project, Zonal Agricultural Research Station, Mainpuri. The main objective was to find out suitable variety of Indian mustard for sowing in early period under thermal condition and replace the local Indian mustard cultivar ‘chhapka’. The nutrient status of pilot area was low. Five high yielding varieties i.e. Rohani, Varuna, Kanti, Urvarshi, Pusa Jai Kisan were tested with local cultivar Chhapka. The tested varieties of Indian mustard did not much differ in growth parameters but cv. Urvarshi displayed the superiority over all varieties. The lowest seed weight/plant (15.85 /plant) and test weight (4.30 gram) were weighed in local cultivar Chhapka, while highest seed weight/plant (18.00 g/plant) and test weight (4.95 gram) were recorded in cv. Urvarshi. The highest seed yield of 30.80 q/ha was noted under tested cultivar Urvarshi and lowest noted under Chaapka(15.70 q/ha). The other tested varieties yielded seed between these two limits. The highest net return of Rs. 99667/ha and BCR (1:3.56) were computed under Urvarshi cultivar. The lowest net return of Rs. 31717/ha and BCR (1:1.81) were computed under local cultivar Chhapka. The cultivar Urvarshi also increased net income of famers by 3.15 fold, which was higher over other tested varieties.