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Paper Information

Journal:   PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH)   summer 2018 , Volume 10 , Number 33 ; Page(s) 241 To 253.

Comparison of yield and yield components of six short-day onion (allium cepa l. ) cultivars and landrace affected by transplant age in Minab region, Iran

In order to evaluate yield and yield components of five short-day onion cultivars and one landrace as influenced by transplant age, was performed an experiment in randomized complete block design as split plot with three replications in Agricultural Research station of Minab, Hormozgan, Iran. The main plot was allocated to transplant age including 50, 60 and 70 days and the sub plot to onion cultivars including GVS 36388, GVS 36612, GVS 36812, Baluchi native cultivar, Primavera and Mineroa. The evaluated characteristics were including length and diameter of bulb, bulb shape index, bulb weight average, weight percent of multi-bulbing and bolting, total and marketable yield. Results showed that the highest marketable yield obtained in Primavera cultivar (34. 503 ton/ha) and the lowest in Baluchi cultivar (16. 107 ton/ha). Generally, 60 days transplant age was better than 50 and 70 days and this superiority completely was obvious in the most characteristics and all cultivars. Beside, Primavera and Mineroa cultivars, with having higher average bulb weight and yield and lower multi-bulbing and bolting, had better relative potential than other cultivars. Totally, according to the bulb production potential of Baluchi cultivar as well as high price of the imported onion cultivars seed and exit foreign exchange from our country, improving undesirable traits of bolting and multi-bulbing in this cultivar can be help to supply desirable seed of this cultivar.
Keyword(s): Baluchi cultivar,bolting,marketable yield,onion,transplant age
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