effects of irrigation time before harvest on the quantitative and qualitative traits of two sugar beet cultivars in mashhad

نویسندگان

محمد جواد صفاریان طوسی

کارشناس ارشد زراعت، دانشگاه مازندران

چکیده

effects of the last irrigation time on quantitative and qualitative traits were studied for two sugar beet cultivars with intermediate and long growth periods. this research was conducted in the field of agricultural and natural resources research center of khorasan at mashhadin 1381. six treatments of withholding irrigation were applied on the cultivars using a spilit plot design within a randomized complete block design with four replications. irrigation treatments arranged in main plots were 60, 50, 40, 30, 20 and 10 days before harvest and varieties 7233 and pp22 were in sub plots. the results showed that irrigation treatments had significant effects on the root yield, sugar content, white sugar content, na, k, molas sugar, net and gross sugar content, while cultivars effects (except k) and irrigation×cultivar interactions were not significant either for root yield or other traits. in this experiment, net sugar content increased with shorter irrigation period before harvest. however,duncan's test showed that there were no significant difference between irrigation treatments from 40 to 10 days before harvest. it was found that the 20-days-irrigation prior harvest provieded maximum gross income and an economized water use.

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

effect of seed priming and irrigation regimes on yield,yield components and quality of safflowers cultivars

این مطالعه در سال 1386-87 در آزمایشگاه و مزرعه پژوهشی دانشگاه صنعتی اصفهان به منظور تعیین مناسب ترین تیمار بذری و ارزیابی اثر پرایمینگ بر روی سه رقم گلرنگ تحت سه رژیم آبیاری انجام گرفت. برخی از مطالعات اثرات سودمند پرایمینگ بذر را بر روی گیاهان مختلف بررسی کرده اند اما در حال حاضر اطلاعات کمی در مورد خصوصیات مربوط به جوانه زنی، مراحل نموی، عملکرد و خصوصیات کمی و کیفی بذور تیمار شده ژنوتیپ های م...

the effects of time planning and task complexity on accuracy of narrative task performance

هدف اصلی این تحقیق بررسی تاثیر برنامه ریزی زمانی، هم چنین افزایش میزان پیچیدگی تکالیف در نظر گرفته شده بصورت همزمان، بر دقت و صحت و پیچیدگی عملکرد نوشتاری زبان آموزان می باشد. بدین منظور، 50 نفر از دانش آموزان دختر در رده ی سنی 16 الی 18 سال به عنوان شرکت کنندگان در این زمینه ی تحقیق در نظر گرفته شدند و به دو گروه آزمایشی و کنترل بصورت اتفاقی تقسیم شدند. اعضای گروه آزمایشی هر دو تکلیف ساده و پی...

on translation of politeness strategies in dialogues involving female characters in translations and retranslations of novels translated before and after the islamic revolution of iran and their effects on the image of women: a polysystem theory approach

abstract reception environment has considerable effects on accepting a translation. as the expectations of a target culture and its values and needs change throughout history, its criteria for accepting a translation or rejecting it will change accordingly (gentzler, 2001). the expectations of iran, as the reception environment in the present study, have changed after the islamic revolution. i...

effects of nitrogen fertilizer and deficit irrigation on quantitative and qualitative traits of sugar beet

water scarcity in arid and semi-arid climate of iran has made deficit irrigation as a strategy for optimal water use and conservation in agricultural sector. this study aimed at evaluating the effects of water-deficit stress and n fertilizer levels on sugar beet performance. the study was conducted in split block design based on randomized complete block design arrangement. the row factor consi...

متن کامل

the effects of planning on accuracy and complexity of iranian efl students’ written narrative task performance

this study compared the different effects of form-focused guided planning vs. meaning-focused guided planning on iranian pre-intermediate students’ task performance. the study lasted for three weeks and concentrated on eight english structures. forty five pre-intermediate iranian students were randomly assigned to three groups of guided planning focus-on-form group (gpfg), guided planning focus...

15 صفحه اول

Influence of Zeolite and Biological Fertilizer under Different Irrigation Regime on Quantitative and Qualitative Traits of Sugar beet (Beta Vulgaris L.)

In order to study the effect of zeolite and biologic fertilizers application under different irrigation regime on yield and quantitative traits in sugar beet, a research project was conducted according split-split plot experiment based on randomized complete block design with four replicates. The main factor included irrigation regime at two levels (Normal and stress), sub factor included zeoli...

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:
چغندرقند

جلد ۲۲، شماره ۱، صفحات ۲۳-۱۳

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

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023