Breeding soybeans to improve the productivity and adaptive traits under irrigation
Keywords:
soybean, adaptive ability, irrigationAbstract
Improvement of selection methodology for productivity, allotment of constant soybean Hy-lines, and creation of new soybean varieties with strong productivity performance and persistence to diseases were the main goal of investigation.
There were allotted more productive Hy-lines with difference length of vegetation period from the numbers of determined in the process of studying of high-productive Hy-lines of F5 hybrid combinations of soybean (Yug 40/Lambert, Yug 40/Banana, 1814 (2) 90/KC 9, Danaia/Phaeton, Izumrudna /Tresor and BY 5823/Aitair).
These Hy-lines had more seeds amount from a plant and weight of the seeds per plant than standard by 96.20-226.26 % and 105.52-193.07 % respectively ant their yield had range 4.31-6.12 t/ha.
The studying of persistence of soy bean plants to virus rugose mosaic, bacterial blight, septoria blight and downy mildew has showed that all allotted by productivity Hy-lines had no traces of these diseases. The Hy-lines 8/15, Yug 40/Lambert, 15/3, Danaia / Phaeton, 27/4, 27/5, Izumrudna/Tresor, 34/1 and BY 5823/Altair had a very high persistence (the score is 7-9) to the bacterial blight and downy mildew.
Because of using of improvement way of allotment for productivity by a quantity of productive nodes per plant we have create two new varieties of soybean (Sviatogor and Sophia). Allotted soybean Hy-lines have included into the further selection process and was recommended as a resource of high productivity and adaptive capabilityReferences
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