نتایج جستجو برای: while traits of leaf area 9642 cm2

تعداد نتایج: 21210201  

Journal: :Tree physiology 2005
Sabrina Coste Jean-Christophe Roggy Pascal Imbert Céline Born Damien Bonal Erwin Dreyer

Variability of leaf traits related to photosynthesis was assessed in seedlings from 14 tree species growing in the tropical rain forest of French Guiana. Leaf photosynthetic capacity (maximum rate of carboxylation and maximum rate of electron transport) was estimated by fitting a biochemical model of photosynthesis to response curves of net CO2 assimilation rate versus intercellular CO2 mole fr...

Journal: :Agronomy 2022

Plant photosynthesis and biomass production are associated with the amount of intercepted light, especially light distribution inside canopy. Three virtual canopies (n = 80, 3.25 plants/m2) were constructed based on average leaf size digitized plant structures: ‘small leaf’ (98.1 cm2), ‘medium (163.0 cm2) ‘big (241.6 cm2). The ratios diffuse set in three gradients (27.8%, 48.7%, 89.6%). simulat...

Journal: :به نژادی گیاهان زراعی و باغی 0
اسماعیل عرب طاژان دره دانشجوی کارشناسی ارشد گروه تولیدات گیاهی، دانشکدۀ کشاورزی، دانشگاه لرستان، خرم ‏آباد، ایران عبدالحسین رضایی نژاد استادیار گروه تولیدات گیاهی، دانشکدۀ کشاورزی، دانشگاه لرستان، خرم ‏آباد، ایران احمد اسماعیلی استادیار گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه لرستان، خرم ‏آباد، ایران فرهاد کرمی مربی پژوهشی بخش به ‏زراعی نهال و بذر، مرکز تحقیقات جهاد کشاورزی و منابع طبیعی استان کردستان

genetic diversity is essential in the implementation of breeding programs. in order to determine genetic diversity, factor analysis and heritability of yield and some morphological traits, 20 strawberry cultivars were studied at the agricultural station of kurdistan research center using a randomized complete block design with three replications. morphological characteristics such as number of ...

2003
WILLIAM A. HOFFMANN AUGUSTO C. FRANCO

1 The savanna–forest boundary in the tropics is marked by a discontinuity not only in tree density, but also in species composition, with few tree species regularly occurring in both savanna and forest environments. 2 We performed comparative growth analysis for nine congeneric pairs, each containing one savanna species and one forest species, grown in a factorial design involving two light and...

Journal: :Tree physiology 2013
Michael B Walters John P Gerlach

Interspecific relationships among species mean leaf traits, performance and species resource/climate distributions help provide the foundation for a predictive, functionally based plant ecology. Intraspecific responses of leaf traits and performance to resource gradients and how these vary among species may be equally important but have received less attention. Here, we examine relationships be...

Journal: :پژوهش های حبوبات ایران 0
هانیه فیروزی همت اله پیردشتی سید جابر حسینی

nowadays, protection of environment and safe agricultural production are an important aims of the sustainable agriculture. also, in attention to abundance of saline soil and water resources in the country, the present research was designed to evaluate pgpr inoculation effect on some morphological and physiological traits of two green bean plant cultivars under salinity stress conditions. a gree...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده جغرافیا 1392

the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...

Abstract:  In order to evaluate the effect of drought stress and salicylic acid on mineral content and some  physiological traits of soybean genotypes (Glycine max L.) a greenhouse experiment was conducted as factorial based on completely randomized design with three replications in Mohaghegh Ardabil University in 2014. The first factor consisted of three levels of water deficit (85%, 65% ...

Journal: :تولید گیاهان زراعی 0
آرزو مولودی دانشگاه ملایر علی عبادی دانشگاه محقق اردبیلی سدابه جهانبخش هیئت علمی دانشگاه محقق اردبیلی

according to the drought as the most important environmental factor that limiting agricultural products and using nitrogen as the most consumed nutrition element in farming system, in this study investigates examined the effect of nitrogen on drought tolerance characteristics, including changes in total chlorophyll content, total protein content, leaf area, phosphorus and peroxidase enzyme acti...

اکبری قوژدی, الهه, ایزدی دربندی, علی, برزوئی, اعظم, مجدآبادی, عباس,

In order to assess the effects of salt stress on some morphological traits of tolerant and sensitive cultivars of wheat (Triticum aestivum L.), a factorial experiment, based on completely randomized design in 3 replications, was conducted under greenhouse condition. The first factor was two genotypes of Sistani and Neishabour (tolerant cultivars) and two genotypes of Tajan and Bahar (sensitive ...

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