optimization of nitrogen concentration of plant tissue for increased quantity and quality of tobacco leaf using an artificial neural network

نویسندگان

حجت صالح زاده

دانشجوی دکتری اکولوژی، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه شاهرود، شاهرود - ایران منوچهر قلی پور

دانشیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه شاهرود، شاهرود - ایران حمید عباسدخت

استادیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه شاهرود، شاهرود - ایران مهدی برادران

دانشیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه شاهرود، شاهرود - ایران

چکیده

nitrogen (n) affects adversely the tobacco yield quantity and quality as it increases yield, chlorine and nicotine contents, but decrease potassium content. this experiment was aimed at optimization of (the balance between) n concentration in leaf, stem and root to increase both yield quantity and quality (high potassium, low chlorine and medium nicotine contents) using artificial neural network. two field experiments based on complete block design with three replications were conducted in tirtash and urmia tobacco research centers. treatments were factorial arrangement of two n sources (urea and nitrate ammonium) and four application patterns (basal, 2/3 basal and 1/3 after initiation of rapid growth (airg), 1/2 basal and 1/2 at airg, 1/3 basal and 2/3 at airg). the n concentration of leaf, stem and root (model inputs) was measured in 30, 50, 70, 85 and 100 days after transplanting. after harvesting, the quantity of cured leaf and its cl, k and nicotine content (model outputs) were also determined. the results indicated that a model with one hidden layer and configuration of 15-15-4 is appropriate and there were no significant different between two n sources. the best pattern was use of nitrate ammonium in 2/3 basal and urea 1/3 basal.  the average value of optimized n concentration was 3.06, 2.42 and 1.5 percent for leaf, stem and root, respectively. these optimized concentrations can lead to potential increase in quality and quantity of tobacco which should be taken into consideration by breeders and agronomists.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

scour modeling piles of kambuzia industrial city bridge using hec-ras and artificial neural network

today, scouring is one of the important topics in the river and coastal engineering so that the most destruction in the bridges is occurred due to this phenomenon. whereas the bridges are assumed as the most important connecting structures in the communications roads in the country and their importance is doubled while floodwater, thus exact design and maintenance thereof is very crucial. f...

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

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 chlo...

متن کامل

The optimization of root nutrient content for increased sugar beet productivity using an artificial neural network

Conventional procedures are inadequate for optimizing the concentrations ofnutrients to increase the sugar yield. In this study, an artificial neural network(ANN) was used to optimize the Ca, Mg, N, K and Na content of the storage rootto increase sugar yield (Y) by increasing both sugar content (SC) and root yield(T). Data from three field experiments were used to produce a wide range ofvariati...

متن کامل

assessment of the efficiency of s.p.g.c refineries using network dea

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

on the relationship between using discourse markers and the quality of expository and argumentative academic writing of iranian english majors

the aim of the present study was to investigate the frequency and the type of discourse markers used in the argumentative and expository writings of iranian efl learners and the differences between these text features in the two essay genres. the study also aimed at examining the influence of the use of discourse markers on the participants’ writing quality. to this end the discourse markers us...

15 صفحه اول

Evaluating the optimization of irradiation components of mung bean seeds with ultrasound for increased seedling vigor, using artificial neural network

Extended Abstract   Introduction: A large number of experimental evidence indicates the positive effect of irradiating the seed with ultrasonic waves; so that irradiation causes the production of a more vigorous seedling. Conversely, inappropriate intensity and duration of irradiation can impose deleterious effects on seedlings by damaging the enzymatic activity. There are complex inter-and in...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
به زراعی کشاورزی

جلد ۱۸، شماره ۳، صفحات ۶۷۳-۶۸۲

کلمات کلیدی
[ ' n i t r o g e n ( n ) a f f e c t s a d v e r s e l y t h e t o b a c c o y i e l d q u a n t i t y a n d q u a l i t y a s i t i n c r e a s e s y i e l d ' , ' c h l o r i n e a n d n i c o t i n e c o n t e n t s ' , ' b u t d e c r e a s e p o t a s s i u m c o n t e n t . t h i s e x p e r i m e n t w a s a i m e d a t o p t i m i z a t i o n o f ( t h e b a l a n c e b e t w e e n ) n c o n c e n t r a t i o n i n l e a f ' , ' s t e m a n d r o o t t o i n c r e a s e b o t h y i e l d q u a n t i t y a n d q u a l i t y ( h i g h p o t a s s i u m ' , ' l o w c h l o r i n e a n d m e d i u m n i c o t i n e c o n t e n t s ) u s i n g a r t i f i c i a l n e u r a l n e t w o r k . t w o f i e l d e x p e r i m e n t s b a s e d o n c o m p l e t e b l o c k d e s i g n w i t h t h r e e r e p l i c a t i o n s w e r e c o n d u c t e d i n t i r t a s h a n d u r m i a t o b a c c o r e s e a r c h c e n t e r s . t r e a t m e n t s w e r e f a c t o r i a l a r r a n g e m e n t o f t w o n s o u r c e s ( u r e a a n d n i t r a t e a m m o n i u m ) a n d f o u r a p p l i c a t i o n p a t t e r n s ( b a s a l ' , ' 2 / 3 b a s a l a n d 1 / 3 a f t e r i n i t i a t i o n o f r a p i d g r o w t h ( a i r g ) ' , ' 1 / 2 b a s a l a n d 1 / 2 a t a i r g ' , ' 1 / 3 b a s a l a n d 2 / 3 a t a i r g ) . t h e n c o n c e n t r a t i o n o f l e a f ' , ' s t e m a n d r o o t ( m o d e l i n p u t s ) w a s m e a s u r e d i n 3 0 ' , 5 0 , 7 0 , ' 8 5 a n d 1 0 0 d a y s a f t e r t r a n s p l a n t i n g . a f t e r h a r v e s t i n g ' , ' t h e q u a n t i t y o f c u r e d l e a f a n d i t s c l ' , ' k a n d n i c o t i n e c o n t e n t ( m o d e l o u t p u t s ) w e r e a l s o d e t e r m i n e d . t h e r e s u l t s i n d i c a t e d t h a t a m o d e l w i t h o n e h i d d e n l a y e r a n d c o n f i g u r a t i o n o f 1 5 ' , 1 5 , ' 4 i s a p p r o p r i a t e a n d t h e r e w e r e n o s i g n i f i c a n t d i f f e r e n t b e t w e e n t w o n s o u r c e s . t h e b e s t p a t t e r n w a s u s e o f n i t r a t e a m m o n i u m i n 2 / 3 b a s a l a n d u r e a 1 / 3 b a s a l . x a 0 t h e a v e r a g e v a l u e o f o p t i m i z e d n c o n c e n t r a t i o n w a s 3 . 0 6 ' , ' 2 . 4 2 a n d 1 . 5 p e r c e n t f o r l e a f ' , ' s t e m a n d r o o t ' , ' r e s p e c t i v e l y . t h e s e o p t i m i z e d c o n c e n t r a t i o n s c a n l e a d t o p o t e n t i a l i n c r e a s e i n q u a l i t y a n d q u a n t i t y o f t o b a c c o w h i c h s h o u l d b e t a k e n i n t o c o n s i d e r a t i o n b y b r e e d e r s a n d a g r o n o m i s t s . ' ]

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023