نتایج جستجو برای: fruit yield efficincy

تعداد نتایج: 259406  

2016
Yuan Li Wenquan Niu Miles Dyck Jingwei Wang Xiaoyang Zou

This study investigated the effects of 4 aeration levels (varied by injection of air to the soil through subsurface irrigation lines) at two subsurface irrigation line depths (15 and 40 cm) on plant growth, yield and nutritional quality of greenhouse tomato. In all experiments, fruit number, width and length, yield, vitamin C, lycopene and sugar/acid ratio of tomato markedly increased in respon...

Abstract Plants need adequate nutrients in all stages of growth, which should be available in the growing medium. This study was performed to examine the effect of different substrates on nutrient uptake and quantitative and qualitative yield of greenhouse strawberry. The experiment was carried out in the research greenhouse of Jihad-e- Daneshghahi, West Azarbaijan, using a completely randomiz...

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 ...

Journal: :Plant physiology 2001
T C Nesbitt S D Tanksley

fw2.2 is a quantitative trait locus responsible for approximately 30% of the difference in fruit size between large, domesticated tomatoes (Lycopersicon esculentum Mill.) and their small-fruited wild relatives. The gene underlying this quantitative trait locus was cloned recently and shown to be associated with altered cell division in ovaries (Frary et al., 2000). However, it was not known whe...

Journal: :international journal of horticultural science and technology 2014
esmaeil fallahi bahar fallahi kourosh vahdati michael j kiester

an increasing world population and the competitive nature of the stone fruit market, particularly nectarines [(prunus persica var. nectarine)], demand the selection of fruit with high quality attributes, flavor, and a wide range of maturity. information on this subject is limited at the present time. in search of superior nectarines, a trial was conducted to study growing degree days (gdd), ful...

Journal: :پژوهش های تولید گیاهی 0
عرفان سپهوند کارشناس ارشد امور آموزشی و پژوهشی گروه علوم باغبانی دانشگاه تهران علی رضا طلایی استاد گروه علوم باغبانی دانشگاه تهران محمد علی عسکری سرچشمه استادیار گروه علوم باغبانی دانشگاه تهران محمد رضا فتاحی مقدم دانشیار گروه علوم باغبانی دانشگاه تهران محمود قاسم نژاد دانشیار گروه علوم باغبانی دانشگاه تهران

background and objectives: apple is the most important horticultural crops that is allocated large share of world trade in agricultural products. principles of sustainable fruit production systems are based on optimal use of natural resources (light, water, soil fertility) where the input (labour, energy, fuel, other material) and output (yield) are well balanced and the resources remain renewa...

The medicinal plant bitter apple belongs to Cucurbitaceae family. To study the effect of phenylalanine and tryptophan amino acids on morphological and physiological characteristics of Citrullus colocynthis L., an investigation was conducted according to a completely randomized block design with four treatments and three replications in University of Zanjan, Iran. The studied factors were consis...

Journal: :مدیریت آب و آبیاری 0
داود اکبری نودهی دانشگاه آزاد اسلامی، واحد قائم شهر، گروه آبیاری، قائم شهر، ایران

in order to evaluate the effect of different levels of drought stress and nitrogen fertilizer on growth of strawberry plants, present study was conducted in the mazandaran province in 2010. experiment was carried out as factorial based on randomized complete block design with three replications. drought stress treatments (30, 50 and 70% maximum allowable depletion of moistur (mad)) and nitrogen...

2011
Lili Yang Qiaoxue Dong Daoliang Li

Based on the functional-structural plant model GreenLab, a common plant category tomato was selected as a test case in order to analyze the impact of plant density on the yield. A yield optimization model was set up based on minimum ripe fruit weight constraints, fruit weight serve as the objective function for the bound-constrained optimization problem. Particle Swarm Optimization (PSO) algori...

2008
AHMAD BAKHSH MUHAMMAD ARSHAD

Effect of genotype x environment interaction was studied on relationship between yield and three yield components in 20 genotypes of chickpea. Significant differences were found between genotypes for the three yield components at all the locations. It was found that the pattern and strength of correlation between number of seeds pod and yield, between number of seeds pod and number of pods plan...

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