Author(s):

RK Singh, SK Singh and AK Tailor

Abstract: India is second largest producer of onion in the world after China. Onion (Allium cepa L.) is commercially cultivated and widely consumed as vegetable and as spices in India. About 73.23 million tons of onions are produced in the world from 3.65 million ha area. India, being major onion-producing country, produces 20.13 million tons from 1.19 million ha, with a very low productivity of 16.24 t/ha in comparison to Republic of Korea (64.58 t/ha), USA (54.47 t/ha), Spain (53.69 t/ha), Netherland (45.80 t/ha), Japan (42.46 t/ha), Germany (41.86 t/ha) and United Kingdom (41.15 t/ha). Lack of recommended or released variety of high yielding as well as good keeping quality in the country, it creates price fluctuation during off season arrival period. To meet out the domestic requirement and also to fulfill the export demand, selection of high yielding genotype under different agro-climatic conditions is necessary. The experiment was conducted at Nashik and Karnal during Rabi 2017-18. At Nashik data revealed that highest gross yield (453.79 q/ha) and marketable yield (297.95 q/ha) was observed in advance lines-824 and 807, respectively, and was at par with lines-811, 824, 852, check varieties NHRDF Red-3 and NHRDF Red-4 regarding marketable yield. The highest total soluble solids (14.11%) and dry matter content (15.43%) were recorded in lines-703 and 825, respectively and was found at par with line-852 and NHRDF Red-4 in respect of total soluble solids, while at Karnal, the highest gross yield (365.51 q/ha) and marketable yield (333.47 q/ha) were recorded in advance line-844 which were at par with line-807 in respect of marketable yield. Highest total soluble solids (12.93%) was recorded in advance line-703 and it was at par with advance lines-704, 811, 825, 845, 873, NHRDF Red-3 and NHRDF Red-4. Hence it is concluded that above advance lines can be utilized for onion breeding programme for develop a good quality variety for different agroclimatic condition.

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