نتایج جستجو برای: zinc zn is an essential micronutrient needed by plants

تعداد نتایج: 11311144  

2015
Suzhen Li Xiaojin Zhou Hongbo Li Yuanfeng Liu Liying Zhu Jinjie Guo Xiaoqing Liu Yunliu Fan Jingtang Chen Rumei Chen Jin-Song Zhang

Iron and zinc are important micronutrients for both the growth and nutrient availability of crop plants, and their absorption is tightly controlled by a metal uptake system. Zinc-regulated transporters, iron-regulated transporter-like proteins (ZIP), is considered an essential metal transporter for the acquisition of Fe and Zn in graminaceous plants. Several ZIPs have been identified in maize, ...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1393

abstract target-oriented approaches to translation studies are regarded as recent theories of translation. one of the most famous theories among these approaches is descriptive translation studies presented by toury (1995). this theory gives a new dimension to translation studies and gives importance to the descriptive rather than prescriptive studies. it also identifies three sets of transla...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تحصیلات تکمیلی صنعتی کرمان - پژوهشکده برق و کامپیوتر 1390

a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...

Journal: :JPEN. Journal of parenteral and enteral nutrition 2009
Krishnan Sriram Vassyl A Lonchyna

Preexisting micronutrient (vitamins and trace elements) deficiencies are often present in hospitalized patients. Deficiencies occur due to inadequate or inappropriate administration, increased or altered requirements, and increased losses, affecting various biochemical processes and resulting in organ dysfunction, poor wound healing, and altered immune status with deleterious sequelae. Guidelin...

2015
Spenser Reed Hadar Neuman Sharon Moscovich Raymond P. Glahn Omry Koren Elad Tako

Zinc (Zn) deficiency is a prevalent micronutrient insufficiency. Although the gut is a vital organ for Zn utilization, and Zn deficiency is associated with impaired intestinal permeability and a global decrease in gastrointestinal health, alterations in the gut microbial ecology of the host under conditions of Zn deficiency have yet to be studied. Using the broiler chicken (Gallus gallus) model...

Journal: :Canadian Journal of Plant Science 2021

Moderate levels of zinc (3.50, 1.75 or 0.875 ?mol·L ?1 Zn) copper (0.75, 0.38 0.19 Cu), in combination with a complete suite other essential nutrients, were supplied up to flower bud break only, two cultivars subirrigated, potted, pinched chrysanthemums. Market-quality plants produced sufficient leaf-zinc leaf-copper even though the delivery respective nutrient could be reduced by 75% compared ...

Journal: :Agriculture 2021

Zinc (Zn) is a key micronutrient affecting bio-functions of crops. Impacts foliar application three forms Zn-containing agrichemicals on the physiology rice seedlings and their uptake heavy metal(loid)s micronutrients from fully flooded paddy soils were investigated in greenhouse study. Rice 45 days after germination randomly exposed to an equivalent amount 100 mg L?1 zinc oxide nanoparticles (...

2006
P Parthasarathy

About 26% of the Indian population is deficient in calories and 28% in protein (Chand et al. 2003). The deficiency is most acute among the poor. The magnitude of micronutrient [iron (Fe) and zinc (Zn)] deficit is particularly alarming among children, women of reproductive age, and pregnant and lactating women (Sharma 2003). Current efforts to combat micronutrient malnutrition in the developing ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم پایه دامغان 1390

the space now known as complete erdos space ec was introduced by paul erdos in 1940 as the closed subspace of the hilbert space ?2 consisting of all vectors such that every coordinate is in the convergent sequence {0} ? { 1 n : n ? n}. in a solution to a problem posed by lex g. oversteegen we present simple and useful topological characterizations of ec. as an application we determine the ...

Journal: :Agronomy 2022

Zinc is essential for the growth and development of plants, but in excessive amounts soil it can be toxic them. Its mobility depends part on organic matter content soil. The aim study was to investigate effect application increasing zinc (200, 400 600 mg Zn·kg−1 soil) together with various forms fertilizer (cattle manure, chicken manure spent mushroom substrate) yield cocksfoot uptake this meta...

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