Evaluation of sugar beet breeding lines for salinity tolerance in greenhouse

خورشید, عبدالمجید and اسدي, علي اکبر and هادی غفاریان, محمد Evaluation of sugar beet breeding lines for salinity tolerance in greenhouse. In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

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Abstract

Salinity and drought are the main inhibitors in crops production in the world. In this survey, the pollinator 8001 was used. Upon to the past studies, this pollinator had relative tolerance to salinity stress conditions. The seeds were planted in June and roots were harvested in autumn. They were stored and were vernalized during the winter. In next year the roots cut in four pieces in length and allowed then to go to bolt under tent cages.150 clones were harvested in September 2017. Then the seeds were tested for tolerance in salinity with EC=22 for germination. The results showed there is considerable difference between the lines for germination rate in normal conditions. The results also showed that some of the lines continued growing in EC=22 until the first couple weeks but after that, the amount of the remained tolerant lines were decreased but some lines were alive and tolerant till the end of the trial . The correlation coefficients showed that germination rate has positive and significant effect on increasing germination of the primary stage of the growth in EC=22 and surviving the seeds in salinity conditions.

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