Yield and fertility of Brassica napus as affected by boron deficiency in soil
1998
Zaman, N.W. | Farid, A.T.M. | Rahman, A.F.M. | Talukder, M.Z.I. | Sarker, R.H. (Regional Agricultural Research Stations, Jamalpur (Bangladesh))
Brassica napus is adapted to the growing conditions of Bangladesh. But it encounters sterility in some soils. Soil samples analysis revealed that the presence of boron and zinc was below critical levels. Field and pot trials were conducted supplementing boron and zinc along with other micronutrients. It was revealed that boron deficiency was a decisive factor for sterility in B. napus. Absence of boron resulted in poor pollen germination on stigma and few pollen tube growth within the style, as well as complete failure of fertilization. The optimal supplemental dose for boron was determined to be around 1 kg/ha.
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