Abstract
Two different field experiments were conducted for two years during 1985–86 and 1986–87 to study the relationship of Mn (0, 15 and 30 kg ha−1) with Fe (0, 15 and 30 kg ha−1) and Zn (0, 10 and 20 kg ha−1) under two fertility (NPK) conditions on yield and quality of opium poppy. The main effect of these micronutrients with respect to latex yield was highest at 15 kg ha−1 of Mn or Fe and 10 kg ha−1 Zn. Increasing the level beyond that resulted in reduction in latex yield. Highest response was observed when 15 kg ha−1 Mn was applied with either 15 kg ha−1 Fe or 10 kg ha−1 Zn. Morphine, codeine, narcotine and thebaine content of the latex was highest with 15 kg Mn, 15 kg Fe or 10 kg ha−1 Zn or the combined application of 15 kg Mn with 15 kg Fe or 10 kg Zn ha−1.
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CIMAP Publication No. 961
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Anwar, M., Patra, D.D., Mukhopadhyay, A.K. et al. Relationship of manganese with iron and zinc with respect to latex yield and composition in opium poppy (Papaver somniferum Linn) under two fertility conditions. Fertilizer Research 34, 55–58 (1993). https://doi.org/10.1007/BF00749960
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DOI: https://doi.org/10.1007/BF00749960