| Introduction and selection of new oil flax cultivars and suitable seeding quantity in Qinghai Province |
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| DOI：10.7606/j.issn.1000-7601.2008.03.18 |
| Key Words: oil flax introduction seeding quantity Qinghai |
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| Abstract: |
| Nineteen new oil flax cultivars from China’s major oil flax producing areas were introduced into Qinghai Province and preparatory study was made in 2005 from which7comparatively better cultivars were selected by considering their yield agronomic traits and resistance．These 7 cultivars were Jinya No．8 8858 Longya No．9 97047 0144（Gansu） 91－197－8and Oil Flax No．3．Then the suitable seeding quantity of them was studied in2006．The results showed that the yield of all the introduced cultivars was higher than the local cultivar Jinya No．8 97047 and Longya No．9 were the three best of all the introduced cultivars on the whole and the suitable seeding quantity were from3 750 000to4 500 000seeds per hm2．Specifically the suitable seeding quantity of Jinya No．8 and 97047were from3 750 000 to 4 500 000seeds per hm2；the suitable seeding quantity of Longya No．9 were about 3 750 000 seeds per hm2． |