study of some changes in cellular adaptation of forage sorghum genotypes during stress

نویسندگان

معصومه قهرمانی

کارشناس ارشد، گروه زراعت و اصلاح نباتات، دانشکدة کشاورزی، دانشگاه محقق اردبیلی، اردبیل - ایران علی عبادی

دانشیار، گروه زراعت و اصلاح نباتات، دانشکدة کشاورزی، دانشگاه محقق اردبیلی، اردبیل - ایران. قاسم پرمون

دانشجوی دکتری، گروه زراعت و اصلاح نباتات، دانشکدة کشاورزی، دانشگاه محقق اردبیلی، اردبیل - ایران سودابه جهانبخش

دانشیار، گروه زراعت و اصلاح نباتات، دانشکدة کشاورزی، دانشگاه محقق اردبیلی، اردبیل - ایران.

چکیده

this study was carried out to evaluate the changes in some important cell parameters under water limitation in sorghum genotypes. a factorial experiment was conducted based on randomized completely design in greenhouse, in university of mohaghegh ardabili in 2014. treatments were water stress at levels of 85, 65, 45 and 25 percent field capacity in and three genotypes of forage sorghum (kfs2, kfs6 and kfs17). the results showed that water stress reduced the osmotic potential, relative water content, cell membrane stability redecase in one percent, also the amount of potassium, calcium, phosphorus, while increased sodium content and finaly decreased biomass. interaction between stress and genotype only proline, soluble sugars, cell membrane stability, relative water content and biomass was statistical difference. kfs2 genotype had the highest amounts of proline, soluble sugars and nutrients, higher osmotic potential, relative water content, cell membrane stability and biomass in most severe stress levels (25 percent of field capacity). the highest contribution between proline and calcium amount for osmotic potential and membrane stability prediction. these factors also play an important role in biomass production. in general we can say the genotypes used for different mechanisms to deal with stress, however, the genotypes which use faster and less expensive methods are able to have greater tolerance to stress and will a higher yield produce.

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

Evaluation of yield stability of forage sorghum [Sorghum bicolor (L.) Moench] genotypes using AMMI analysis

Sorghum is an important forage crop used as silage, fresh forage and dry forage. To evaluate the yield stability of 16 genotypes; cultivars, lines and hybrids, of forage sorghum, experiments were conducted using randomized complete block design with three replications during 2016-17 at Karaj, Isfahan, Gorgan, and Mashhad field stations, Iran. The results of combined analysis of variance showed ...

متن کامل

Effects of salt stress on some growth parameters and chemical contents of two forage sorghum lines

Abstract Soil salinity has been recognized as the most serious problems for agriculture in arid and semi-arid areas of the world. To evaluate the changes in some  growth parameters  and chemical composition of two forage sorghum (Sorghum bicolor var. sudanense  lines (KFS1, KFS2) under salinity stress [0 (control), 3, 6, 9, 12 dS/m of sodium chloride], a pot experiment was carried out at Colleg...

متن کامل

Effect of nitrogen on yield and some physiological characteristics of sorghum (Sorghum sp.) genotypes under drought stress

In order to investigate the effect of drought stress and nitrogen application on growth and some physiological characteristics of sorghum genotypes, an experiment was conducted in a split-split plot with randomized complete block design in three replications at Research farm of collage of agriculture, Isfahan University of Technology. Experimental treatments consisted of two irrigation regimes ...

متن کامل

study of cohesive devices in the textbook of english for the students of apsychology by rastegarpour

this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...

the effect of e-64 on the developmental competence of sheep cocs during in vitro maturation

in the present study, the effect of e-64 at different concentrations (0.5, 1, 5 and 10 µm) added to (1) the ivm medium on oocyte nuclear maturation and developmental competence of ovine oocytes, and (2) to the ivc medium on embryonic development of ovine embryos were investigated.

gradual erasure of subjectivity: a study of samuel beckett’s trilogy in the light of postmodernism

ساموئل بکت بیشتر از هر نویسنده دیگری در نیم? دوم قرن بیستم با گفتارش زمان? ما را به آستان? از هم پاشیدگی کشانده است، آستانه ای که در آن مدرنیته با سرانجام گریزان اما غیرقابل اجتناب خود مواجه می شود. در این تحقیق روی مفهوم فردیت و محو آن در دوران پسامدرن تاکید شده و در طی آن سعی شده است که فردیت مدرن و پسامدرن در رمان های سه گانه بکت بررسی گردد. تحقیق حاضر یک بررسی کتابخانه ای و کیفی بر روی سه ر...

15 صفحه اول

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 ۱۷، شماره ۳، صفحات ۷۵۵-۷۷۳

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

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023