Effect of Irrigation Levels and Plant Growth Promoting Rhizobacteria on Yield, Some Physiological and Biochemical Indices of Rapeseed (Brassica napus L.)
نویسندگان
چکیده مقاله:
In order to study the effect of irrigation levels and plant growth promoting rhizobacteria on yield, some physiological and biochemical indices of rapeseed, a factorial experiment was conducted based on randomized complete block design with three replications in Agricultural Research Station of Ardabil, Ardabil, Iran in 2016. The factors included in the experiment were irrigation in three levels (irrigation withholding at 50% of flowering and pod formation stages, irrigation withholding at 50% of grain formation stage, full irrigation or control) and application of bio-fertilizers in four levels (no inoculation, inoculations with Nitrobacter, Psedomonas and Azospirillum). Results showed that water limitation decreased yield, quantum yield, stomatal conductance, chlorophyll index, linoleic acid, eicosenoic acid and palmitoleic acid, but increased erucic acid, arashidic acid and proline contents. Mean comparisons showed that the highest grain yield (1.62 ton ha-1), quantum yield (0.523), stomatal conductance (14.7 mmol m-2 s-1), chlorophyll content (32.9), linoleic acid (10.45%) and eicosenoic acid contents (1.34%) were obtained in inoculation with Azosprillum and full irrigation. The highest contents of erucic acid (2.89%) and arashidic acid (0.94%) were observed at no inoculation and irrigation withholding in grain formation stage. The maximum of proline content (1.52 µg g-1 FW) was obtained in inoculation with Azosprillum and irrigation withholding at flowering and pod formation stage. It seems that application of plant growth promoting rhizobacteria leads to improving of some physiological traits such as quantum yield, chlorophyll content, stomatal conductance and proline content and can be recommended for profitable canola production under water limitation conditions.
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...
effect of plant growth promoting rhizobacteria (pgpr) application, nitrogen and zinc sulphate fertilizer on yield and nitrogen uptake in rapeseed (brassica napus l.)
in order to study the effects of simultaneous application of znso4 and biological fertilizer, azotobacter chroococcum and azospirillum brasilense, on grain yield and nitrogen uptake efficiency in rapeseed (brassica napus l.), cv. hyola308, a field experiment was conducted as split plot factorial based on randomized complete block design at research field of faculty of agricultural sciences, uni...
متن کاملEffect of salinity and deficit irrigation on some ions uptake by rapeseed (Brassica napus L.) under two planting methods
ABSTRACT- In this study, effect of deficit irrigation with different salinity levels and planting methods (in-furrow and on-ridge) on nutrient and toxic ions uptake by rapeseed was investigated in a two-year experiment. The experiment was conducted at Research Station, located in the College of Agriculture, Shiraz University, I.R. of Iran. Results indicated that an increase in water stress leve...
متن کاملstudy the changes of some physiological properties of rapeseed (brassica napus l.) under different irrigation levels
in this study the response of 9 rapeseed genotypes were evaluated at the seedling stage using different irrigation levels (50, 70 and 100% fc). a factorial experiment based on rcbd was conducted in the research greenhouses of urmia university with four replications during summer of 2013. some physiological traits such as relative water content, stomatal conductance, transpiration, photosynthesi...
متن کاملSome Biochemical Parameters of Brassica napus L
s: Chromium is one of the unessential heavy metal that makes high toxicity in the plants. The aim of this study was assaying the changes that come from toxicity of (Cr ) on some biochemical, physiological and 6+ ionic specification of Brassica napus variety sari flower. The tests were conducted at hydro ionic conditions and at 0, 25, 50, 75 and 100 μm concentration of K CrO with four repeats in...
متن کامل: the effect of sericin levels (silk glue protein) on rate of in vitro maturation, fertilization and culture of sheep oocytes
هدف از آزمایش اول بررسی اثر سطوح مختلف سریسین [0 (control), 0.1, 0.5, 1.0, 2.5 %] افزوده شده به محیط , ivm بر cumulus cell expansion، بلوغ هسته و توسعه متوالی جنین، در گوسفندان نژاد سنجابی در فصل تولید مثلی می باشد. از سرگیری میوز به وسیله خارج شدن اولین پولار بادی اندازه گیری و هم چنین درصد رسیدن جنین های دو سلولی به مرحله کلیواژ و بلاستوسیت نیز به عنوان نشانه ای از میزان شایستگی توسعه اولیه ج...
منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ذخیره در منابع من قبلا به منابع من ذحیره شده{@ msg_add @}
عنوان ژورنال
دوره 9 شماره 2
صفحات 99- 112
تاریخ انتشار 2019-08
با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.
کلمات کلیدی برای این مقاله ارائه نشده است
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023