نتایج جستجو برای: Stem height

تعداد نتایج: 374383  

Journal: :علوم گیاهان زراعی ایران 0
مرضیه دادخواه دانشجوی سابق کارشناسی ارشد دانشکده کشاورزی دانشگاه صنعتی اصفهان محمد مهدی مجیدی استادیار دانشکده کشاورزی دانشگاه صنعتی اصفهان آقافخر میرلوحی استاد، دانشکده کشاورزی دانشگاه صنعتی اصفهان

sainfoin (onobrychis viciifolia scop.) is a perennial forage legume has recognized for its feed value and high stability. this experiment was conducted to investigate the relationship among morphological and agronomic traits using multivariate statistical methods including correlation, regression and factor analysis. twenty one accessions of sainfoin were evaluated in a randomized complete bloc...

Journal: :desert 2013
a. mohebby m. jafari a. tavili s.a. javadi e. zandi esfahan

it has often been stated or implied that grazing is an important factor in the land degradation process, a suggestion supported by various research projects, and this study investigated the effect of livestock grazing on stem height, crowncover, production, basal diameter, stem biomass, litter, leaf-stem index (leaf to stem weight) , root diameter and weight and seed production per individual o...

Journal: Desert 2012
A. Mohebby A. Tavili E. Zandi Esfahan M. Jafari M. Ramezani S.A. Javadi

It has often been stated or implied that grazing is an important factor in the land degradation process, a suggestion supported by various research projects, and this study investigated the effect of livestock grazing on stem height, crowncover, production, basal diameter, stem biomass, litter, leaf-stem index (leaf to stem weight) , root diameter and weight and seed production per individual o...

Journal: :Genetics 2003
Y Kakizaki

Discussion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The diameter of stem and the height of plant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . The diameter of stem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 The height of plant. . . . . . . . . . . . . . . . . . . . ...

2013
Tord Johansson Birger Hjelm

Swedish owners of poplar stands are interested in both the wood quality and the use of poplars that are soon to be harvested. An important concern is the frequency of false heartwood (FHW) in the stems. We have presented an overview of the factors causing discolored wood as well as the industrial use and quality of the end products. We have studied poplar stems growing at 22 sites in Sweden bet...

Journal: :علوم گیاهان زراعی ایران 0
جعفر نباتی دانشجوی سابق دکتری دانشکده کشاورزی دانشگاه فردوسی مشهد محمد کافی دانشیار دانشکده کشاورزی دانشگاه فردوسی مشهد احمد نظامی استادیار دانشکده کشاورزی دانشگاه فردوسی مشهد پرویز رضوانی مقدم استادیار دانشکده کشاورزی دانشگاه فردوسی مشهد علی معصومی استادیار دانشگاه پیام نور خراسان رضوی محمد زارع مهرجردی دانشجوی دکتری بیوتکنولوژی دانشکده کشاورزی دانشگاه فردوسی مشهد

kochia is a halophyte plant and is a good source of forage for livestock under saline irrigation. in order to investigate the salinity effect on morphological and forage characteristics of kochia, an experiment was conducted. three saline waters (5.2, 10.5 and 23.1 ds m-1) and three kochia ecotypes (birjand, borujerd and sabzevar) were allocated as main and sub plots, respectively, in a split p...

The aim of investigation was to determine the effects of aspect (north and south) on some morphological [plant height (cm), number of stems per plant, main stem diameter (mm), number of leaves per main stem, petiole length (cm), leaflet length (cm), leaflet width (cm), leaf: stem ratio] and chemical [crude protein (%), crude cellulose (%), calcium (%), phosphorus (%), potassium (%) and magnesiu...

Journal: :desert 0
a. mohebby ph.d graduate, research institute of forests and rangelands (rifr),tehran, iran m. jafari professor, faculty of natural resources, university of tehran, karaj, iran a. tavili associate professor, faculty of natural resources, university of tehran, karaj, iran s.a. javadi assistant professor, science and research branch, islamic azad university, tehran, iran e. zandi esfahan assistant professor, research institute of forests and rangelands (rifr),tehran, iran m. ramezani member of scientific board, islamic azad university, science and research branch, tehran, iran

it has often been stated or implied that grazing is an important factor in the land degradation process, a suggestion supported by various research projects, and this study investigated the effect of livestock grazing on stem height, crowncover, production, basal diameter, stem biomass, litter, leaf-stem index (leaf to stem weight) , root diameter and weight and seed production per individual o...

Peng Yun-feng Rui Yu-kui, Shen Jian-bo Wang Zheng-rui

In this study, nitrogen fertilizer was applied to corn (Zea mays L.) at conventional (excessive) and recommended levels, and the growth response was assessed by measuring plant height and stem perimeter. Corn plant maximum height was observed in recommended rates of N fertilizer treatment, and the height without N fertilizer was the same as that receiving excess N fertilizer. Stem perimeter was...

2016
Libo Jiang Meixia Ye Sheng Zhu Yi Zhai Meng Xu Minren Huang Rongling Wu

The developmental variation in stem height with respect to stem diameter is related to a broad range of ecological and evolutionary phenomena in trees, but the underlying genetic basis of this variation remains elusive. We implement a dynamic statistical model, functional mapping, to formulate a general procedure for the computational identification of quantitative trait loci (QTLs) that contro...

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