evaluation of drought tolerance in dry lands wheat genotypes under different moisture conditions

نویسندگان
چکیده

in order to study of drought tolerance in bread wheat genotypes, this study was conducted in maragheh dryland agricultural research station. the study included two experiments and the statistical design of each experiment was a rcbd with four replications, and 20 bread wheat genotypes that were compared under drought stress (rainfed) and supplementary irrigation. analysis of simple variance supplemental irrigation showed that there were significant differences among lines in grain yield, biological yield, harvest index, spike number in square meter, number of grain per spike and thousand kernel weight. also, in drought stress experiment, there were significant differences among wheat genotypes in agronomic traits such as harvest index, spike number in square meter, grain number per spike and thousand kernel weight, but there were non-significant differences in grain yield and biological yield. combined analysis of variance or two experiments showed that, drought stress significantly reduced harvest index, grain respect to number per spike and thousand kernel weights but it had non-significant effect on grain and biological yield. under drought condition lines no. 3 (arg/r16// bez* 2/3/agri/ksk/5/trk13/6/m) and11(m-70-4/5/ alborz/ 4/ k6290914/ cno// k58/ tob/3/wa) had the highest grain yield by an average of 2.2 and 2.19 t.ha-1 respectively, and under supplemental irrigation experiment, lines no.3 and 17 (dari98-ma-39cit98/99(f4)-1ma-0ma) produced the highest grain yield with an average of 3.84 and 4.19 t/ha grain yield. results indicated that genotypes no. 3 and 17 had the highest amounts of gmp, mp and sti, therefore were selected as the most tolerant lines. finally, under supplementary irrigation, genotypes no. 3 and 17 and in rainfed condition no. 3 and 11 could be recommended.

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 Leaf Proteome in Wheat Genotypes Under Drought Stress

Drought stress in plants, the change (increase or decrease) in the production of plant proteins. Proteomics in recent years one of the most powerful tools that help us to study the changes in protein In order to investigate the proteome of wheat leaves in response to terminal drought, two genotypes susceptible and resistant wheat genotypes were evaluated under irrigated (non-stress) and rain-fe...

متن کامل

Evaluation of drought Tolerance Indices in Dryland Bread wheat Genotypes under Post-Anthesis drought Stress

Post-anthesis drought stress is the most important problem affecting wheat production in dryland fields, specially in Mediterranean regions. The main objective of this research was to evaluate drought tolerance indices in dryland wheat genotypes under post-anthesis drought stress. The research was including two different experiments. In each experiment, twenty dryland bread wheat genotypes were...

متن کامل

Evaluation of Leaf Proteome in Wheat Genotypes Under Drought Stress

Drought stress in plants, the change (increase or decrease) in the production of plant proteins. Proteomics in recent years one of the most powerful tools that help us to study the changes in protein In order to investigate the proteome of wheat leaves in response to terminal drought, two genotypes susceptible and resistant wheat genotypes were evaluated under irrigated (non-stress) and rain-fe...

متن کامل

Physiological assessment of drought tolerance in wheat (Triticum aestivum L.) varieties under moisture stress conditions

Drought is one of the major limiting factors in wheat production in Pakistan. Five commercial wheat varieties; Chakwal-97, Inqilab-91, Margalla-99, NR-234 and Wafaq2001 were grown in pots in glasshouse. Plants were subjected to three consecutive drought cycles at tillering, pre-anthesis and milky growth stages by withholding water till leaf rolling started. Measurements of physiological respons...

متن کامل

Drought Tolerance of Several Tomato Genotypes Under Greenhouse Conditions

Growth and production of agricultural crops are greatly affected by water shortage. Thus, yield enhancement under drought conditions is a major goal of plant breeding. Four commercial tomato cultivars (Imperial, Pakmore VF, Strain-B and Tnshet Star), a drought-tolerant breeding line (L 03306) and their hybrid combinations were selected in this study to evaluate drought tolerance and to develop ...

متن کامل

Evaluation of Agro-Physiological Characteristics and Drought Tolerance in Some of Durum Wheat Breeding Genotypes

In order to study of agronomic, physiological characteristics, drought tolerance and to identify  Agro-physiological traits associated with drought tolerance, 19 durum wheat genotypes consisting of 17 advanced breeding lines and two control cultivars (Saji and Zahab) were evaluated in a randomized complete blocks design with three replicated under both stress (rainfed condition) and non-stress ...

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:
تولید گیاهان زراعی

جلد ۵، شماره ۲، صفحات ۱۲۹-۱۴۳

کلمات کلیدی
[ ' i n o r d e r t o s t u d y o f d r o u g h t t o l e r a n c e i n b r e a d w h e a t g e n o t y p e s ' , ' t h i s s t u d y w a s c o n d u c t e d i n m a r a g h e h d r y l a n d a g r i c u l t u r a l r e s e a r c h s t a t i o n . t h e s t u d y i n c l u d e d t w o e x p e r i m e n t s a n d t h e s t a t i s t i c a l d e s i g n o f e a c h e x p e r i m e n t w a s a r c b d w i t h f o u r r e p l i c a t i o n s ' , ' a n d 2 0 b r e a d w h e a t g e n o t y p e s t h a t w e r e c o m p a r e d u n d e r d r o u g h t s t r e s s ( r a i n f e d ) a n d s u p p l e m e n t a r y i r r i g a t i o n . a n a l y s i s o f s i m p l e v a r i a n c e s u p p l e m e n t a l i r r i g a t i o n s h o w e d t h a t t h e r e w e r e s i g n i f i c a n t d i f f e r e n c e s a m o n g l i n e s i n g r a i n y i e l d ' , ' b i o l o g i c a l y i e l d ' , ' h a r v e s t i n d e x ' , ' s p i k e n u m b e r i n s q u a r e m e t e r ' , ' n u m b e r o f g r a i n p e r s p i k e a n d t h o u s a n d k e r n e l w e i g h t . a l s o ' , ' i n d r o u g h t s t r e s s e x p e r i m e n t ' , ' t h e r e w e r e s i g n i f i c a n t d i f f e r e n c e s a m o n g w h e a t g e n o t y p e s i n a g r o n o m i c t r a i t s s u c h a s h a r v e s t i n d e x ' , ' s p i k e n u m b e r i n s q u a r e m e t e r ' , ' g r a i n n u m b e r p e r s p i k e a n d t h o u s a n d k e r n e l w e i g h t ' , ' b u t t h e r e w e r e n o n ' , ' s i g n i f i c a n t d i f f e r e n c e s i n g r a i n y i e l d a n d b i o l o g i c a l y i e l d . c o m b i n e d a n a l y s i s o f v a r i a n c e o r t w o e x p e r i m e n t s s h o w e d t h a t ' , ' d r o u g h t s t r e s s s i g n i f i c a n t l y r e d u c e d h a r v e s t i n d e x ' , ' g r a i n r e s p e c t t o n u m b e r p e r s p i k e a n d t h o u s a n d k e r n e l w e i g h t s b u t i t h a d n o n ' , ' s i g n i f i c a n t e f f e c t o n g r a i n a n d b i o l o g i c a l y i e l d . u n d e r d r o u g h t c o n d i t i o n l i n e s n o . 3 ( a r g / r 1 6 / / b e z * 2 / 3 / a g r i / k s k / 5 / t r k 1 3 / 6 / m ) a n d 1 1 ( m ' , 7 0 , ' 4 / 5 / a l b o r z / 4 / k 6 2 9 0 9 1 4 / c n o / / k 5 8 / t o b / 3 / w a ) h a d t h e h i g h e s t g r a i n y i e l d b y a n a v e r a g e o f 2 . 2 a n d 2 . 1 9 t . h a ' , ' 1 r e s p e c t i v e l y ' , ' a n d u n d e r s u p p l e m e n t a l i r r i g a t i o n e x p e r i m e n t ' , ' l i n e s n o . 3 a n d 1 7 ( d a r i 9 8 ' , ' m a ' , ' 3 9 c i t 9 8 / 9 9 ( f 4 ) ' , ' 1 m a ' , ' 0 m a ) p r o d u c e d t h e h i g h e s t g r a i n y i e l d w i t h a n a v e r a g e o f 3 . 8 4 a n d 4 . 1 9 t / h a g r a i n y i e l d . r e s u l t s i n d i c a t e d t h a t g e n o t y p e s n o . 3 a n d 1 7 h a d t h e h i g h e s t a m o u n t s o f g m p ' , ' m p a n d s t i ' , ' t h e r e f o r e w e r e s e l e c t e d a s t h e m o s t t o l e r a n t l i n e s . f i n a l l y ' , ' u n d e r s u p p l e m e n t a r y i r r i g a t i o n ' , ' g e n o t y p e s n o . 3 a n d 1 7 a n d i n r a i n f e d c o n d i t i o n n o . 3 a n d 1 1 c o u l d b e r e c o m m e n d e d . ' ]

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023