نتایج جستجو برای: index species

تعداد نتایج: 931450  

Journal: :بوم شناسی کشاورزی 0
الهام عزیزی لیلا علیمرادی رضا قربانی

in order to evaluate the weed diversity in forage crop fields such as alfalfa (medicago sativa l.), clover (trifolium sp.) and sainfoin (onobrychis spp.) in different provinces of iran, a study was conducted by using data from reports of plant protection organization, ministry of agriculture during 2008. after evaluation of weed species and definition of weed family, these species classified ba...

      Taxus baccata L. is a native and ancient tree species growing the Hyrcanian forests that have been considered in recent years because of being in the red lists of threated species. The aim of this research was to provide quantitative characteristics of forest stand structure using a set of indicators in the natural habitat of this species. Three one-hectare sampling area were selected to ...

اسحاقی راد , جواد, متاجی, اسداله, واحدی, علی اصغر,

Soil organic carbon pool plays an important role in the global C cycle and climate change mitigation. Therefore, improving our understanding of some factors such as plant biodiversity that can affect forest soil C storage is fundamentally important for anticipating changes. This study was carried out in the mixed-beech forests of Glandrood located in Noor using a systematic network of points in...

Journal: :مجله بین المللی زیست و زیست پزشکی 0
kilavan packiam kannan department of biotechnology, bannari amman institute of technology, sathyamangalam, tamil nadu, india mohamed imdhiyas abdul basheed department of biotechnology, bannari amman institute of technology, sathyamangalam, tamil nadu, india sabarivasan kannadhasan department of biotechnology, bannari amman institute of technology, sathyamangalam, tamil nadu, india sampath pondurai department of biotechnology, bannari amman institute of technology, sathyamangalam, tamil nadu, india madhankumar dhakshinamoorthy department of biotechnology, bannari amman institute of technology, sathyamangalam, tamil nadu, india

endophytes are organisms present in the internal tissues living in symbiotic association with plants. these organisms may be used as alternative source of many secondary metabolites production. the present study was conducted to explore the endophytic fungi that colonize the inner tissues of medicinal plant mimusops elengi l. out of 100 plant segments of both leaves and twigs of mimusops elengi...

A. Vosoughi, B. Daghooghi, F. Kaymaram, M. Moradi, T. Valinassab,

The Indian mackerel (Rastrelliger kanagurta, Cuvier, 1817) is one of the commercial small pelagic fish in the Persian Gulf and Oman Sea. In the current research, feed preference index (FP), fullness index (FI), and stomach contents of Rastrelliger kanagurta were evaluated to assess the quantity and type of feed habits. A total of 573 specimens were collected randomly from Bandar - Abbas and Qes...

Amarasinghe, N.J. De S, Chandrarathna , W.P.R, Munasinghe , D.H.N, Sumuduni , B.G.D,

Population dynamics indices of parasites infected on cultured ornamental fishes according to the climatic changes in kurunagala district,Sri Lanka were estimated.Sample of gold fishes and koi carps which were harvested from mud ponds in ornamental fish breeding and traning center was examined for ecto parasites. Four population indices were calculated for each abundant parasite species and dive...

2015
M. Choudhury

Moth species were studied from some selected districts of Assam (i.e., Cachar and Barpeta district) to determine their diversity index, species richness and evenness of Arctiidae and Geometriidae family of the moth fauna.The moths were collected by applying specialized trapping methods using UV light operating during night. Collected moth species were identified up to family-genusspecies level....

Journal: :بوم شناسی کشاورزی 0
صغری الهی رضا صدرآبادی حقیقی لیلا علیمرادی

to study weed species diversity and community structure in pistachio (pistacia vera l.) orchards in 33 orchards of 12 villages an investigation was conducted in bardaskan county, khorasan razavi province, iran during 2008-2009. weed population sampling was conducted in a w shape method using 1m² quadrate. the results showed that the weeds of pistachio orchards were belonging to 15 families and ...

Journal: :Japanese Journal of Water Treatment Biology 1980

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