study the effects of some trichoderma spp. on tomato growth parameters using three inoculation methods

نویسندگان

ناهید حیدر زاده

استادیار گروه گیاه پزشکی، دانشگاه آزاد اسلامی، واحد بجنورد، ساره بقائی راوری

استادیار گروه گیاه پزشکی، دانشگاه فردوسی مشهد، حمید روحانی

استاد گروه گیاهپزشکی، دانشگاه فردوسی مشهد، عصمت مدیخانی مقدم

دانشیار گروه گیاهپزشکی، دانشگاه فردوسی مشهد

چکیده

background and objectives: different trichoderma species play role as suitable alternative for chemical fertilizers and successful biological tool in stable agriculture. these microorganisms show rivalry in food and place sources. they establish in the rhizosphere of most agricultural and non-agricultural plants via producing spores. they also could induce resistance in plants. these properties may lead to pathogen reduction as well as plant growth incitation. favorite effect of trichoderma species on the plant growth depends on type of species, strains and inoculation methods. therefore this research has been tried to compare growth effects of four different trichoderma species using three methods including seed coating, soil application and shoot spraying on tomato growth factors.materials and methods: four trichoderma spp. including trichoderma sp (t1), trichoderm virens (t2), trichoderma harzianum (t3, t4) and trichoderma koningi (t5) were evaluated on tomato growth under completely randomized design based on factorial mmethod with four replications in greenhouse conditions. three methods, consisting of seed coating, soil application and shoot spraying were applied under pot experiments and the performance of all three methods was evaluated according to the isolates. fungal inoculation suspension was prepared for each method separately. for instance in seed coating method, 3×106 trichoderma spore on seed surface was estimated. approximately 107 propagle per gram of soil was calculated for soil application method and in shoot spraying 107 spores per ml was prepared. statistical analysis was carried out based on averages comparison by lsd method (p=0.05). results: based on obtained results, soil application method showed meaningful promotion on tomato growth traits especially on dry root and foliar weight in comparison to other techniques. overall, t1, t2 and t5 selected as the best candidates in trial conditions specifically in soil and seed application methods based on their positive effect on tomato growth factors. isolate t1 increased root and shoot length by 54 and 45.5 percent respectively over controls in soil application treatment. in addition, the means comparisons using lsd method shows no significant difference between t1 and t2 isolates at 5% possibility level. so there is no difference between these isolates as a bio-fertilizer.conclusion: the soil application method was suggested as preferred technique in current study. in addition, it seems that application of t1 (trichoderma sp.) and t2 (t. virens) isolates in the form of individual or combined formulation which can be used in the field level and could improve tomato growth and yields significantly.

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

the effects of error correction methods on pronunciation accuracy

هدف از انجام این تحقیق مشخص کردن موثرترین متد اصلاح خطا بر روی دقت آهنگ و تاکید تلفظ کلمه در زبان انگلیسی بود. این تحقیق با پیاده کردن چهار متد ارائه اصلاح خطا در چهار گروه، سه گروه آزمایشی و یک گروه تحت کنترل، انجام شد که گروه های فوق الذکر شامل دانشجویان سطح بالای متوسط کتاب اول passages بودند. گروه اول شامل 15، دوم 14، سوم 15 و آخرین 16 دانشجو بودند. دوره مربوطه به مدت 10 هفته ادامه یافت و د...

15 صفحه اول

reflections on taught courses of the iranian ma program in english translation: a mixed-methods study

the issue of curriculum and syllabus evaluation and revision has been in center of attention right from when curriculum came into attention of educational institutions. thus everywhere in the world in educational institutions curricula and syllabi are evaluated and revised based on the goals, the needs, existing content, etc.. in iran any curriculum is designed in a committee of specialists and...

The Effects of Paecilomyces lilacinus on the Pathogenesis of Meloidogyne Javanica and Tomato Plant Growth Parameters

The present study is based on the investigation of a soil hyphomyces, Paecilomyces lilacinus, an opportunistic bio-control agent, in controlling root-knot nematode Meloidogyne javanica on tomato in greenhouse conditions. P. lilacinus, effectively promoted the growth of plants inoculated with M. javanica by suppressing its pathogenesis as root galling by the nematode and egg mass production was ...

متن کامل

on the effects of pictorial clues on the efl learners listening comprehension development

the following null hypothesis was proposed: there is no significant difference between the efl students listening comprehension development receiving pictorial cues and those receiving no cuse. to test the null hypothesis, 52 male and femal freshmen students of medicine studing at iran university of medical scinces were randomly selected from a total population of 72 students. to ensure that th...

15 صفحه اول

the impact of using inspirational quotes on abstract vocabulary recall

the present study is an attempt to investigate the potential impact of inspirational quotes on improving english abstract vocabulary recall. to achieve this goal, a multiple choice language proficiency test of 60 items including vocabulary and grammar component was administered to a sample of 63 second-semester male and female students whose age ranged between 17 to 22 and they were studying en...

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:
پژوهش های تولید گیاهی

جلد ۲۳، شماره ۱، صفحات ۲۳-۲۹

کلمات کلیدی

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023