Optimizing plant traits to increase yield quality and quantity in tobacco using artificial neural network

نویسندگان

  • H. Abbasdokht Faculty member, Department of Crop Sciences, Shahrood University, P.O. Box 36155-316, Shahrood, Iran
  • H. Salehzadeh PhD student, Department of Crop Sciences, Shahrood University, P.O. Box 36155-316, Shahrood, Iran.
  • M. Baradaran Faculty member, Department of Crop Sciences, Shahrood University, P.O. Box 36155-316, Shahrood, Iran
  • M. Gholipoor Faculty member, Department of Crop Sciences, Shahrood University, P.O. Box 36155-316, Shahrood, Iran.
چکیده مقاله:

There are complex inter- and intra-relations between regressors (independent variables) andyield quantity (W) and quality (Q) in tobacco. For instance, nitrogen (N) increases W butdecreases Q; starch harms Q but soluble sugars promote it. The balance between (optimizationof) regressors is needed for simultaneous increase in W and Q components [higher potassium(K), medium nicotine and lower chloride (Cl) contents in cured leaf]. This study was aimed tooptimize 10 regressors (content of N and soluble sugars in root, stem and leaf, leaf nicotinecontent at flowering and nitrate reductase activity (NRA) at 3 phenological stages) for increasedW and Q components, using an artificial neural network (ANN). Two field experiments wereconducted to get diversified regressors, Q and W, using 2 N sources and 4 application patternsin Tirtash and Oromieh. Treatments and 2 locations produced a wide range of variation inregressors, W and Q components which is prerequisite of ANN. The results indicated thatconfiguration of 12 neurons in one hidden layer was the best for prediction. The obtainedoptimum values of regressors (1.64%, 2.12% and 1.04% N content, 4.32%, 13.04% and 9.54%soluble sugar content for leaf, stem and root, respectively; 2.31% nicotine content and NRA of13.11, 4.74 and 4.70 µmol.NO2.g-1.h-1 for pre-flowering, flowering and post-flowering stages,respectively) increased W by 3% accompanied by 4.75% K, 1.87% nicotine and 1.5% Clin cured leaf.

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عنوان ژورنال

دوره 10  شماره 1

صفحات  97- 108

تاریخ انتشار 2016-01-01

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