نتایج جستجو برای: flag leaf area

تعداد نتایج: 664360  

2015
Philippa Borrill Brendan Fahy Alison M. Smith Cristobal Uauy Pilar Hernandez

It has been proposed that delayed leaf senescence can extend grain filling duration and thus increase yields in cereal crops. We found that wheat (Triticum aestivum) NAM RNAi plants with delayed senescence carried out 40% more flag leaf photosynthesis after anthesis than control plants, but had the same rate and duration of starch accumulation during grain filling and the same final grain weigh...

Journal: :international journal of advanced biological and biomedical research 2014
shahram biglar poor sadri hamid dehghan zade

topping stage of tobacco is a key time for development of agriculture measures to promote the quality of leaves. in order to investigating influence of topping timing and suckericide content on tobacco leaf, a factorial experiment on the basis of rcb design with 3 replications was conducted in 2011 at the tobacco research farm of isfahan. treatments were including topping time (t1: topping at e...

باقی زاده, امین, حیدری رودبالی, معصومه, عبدالشاهی, روح اله, قادری, محمد قادر,

A generation mean analysis was conducted to study genetic of yield and yield related traits of bread wheat in drought stress condition. In this research F1, F2, BC1 and BC2 generations were developed created using Kavir and Roushan as parents. The generations and parents were evaluated in a randomized complete block design with three replications and the traits including yield, flag leaf area, ...

Journal: :علوم گیاهان زراعی ایران 0
حسین نوری دانشجوی سابق پردیس کشاورزی و منابع طبیعی کرج علی احمدی کاظم پوستینی پردیس کشاورزی و منابع طبیعی کرج

studies manipulating the source-sink relationships during post anthesis in wheat have shown inconsistent results, concluding that wheat yield could be either sinkor source-limited. the aim of this study was to determine source limitation degree of 36 iranian wheat cultivars andto investigate their intrinsic compensatory mechanism in response to source size reduction. a split plot design based o...

امیری, محمد اسماعیل, جعفرآقائی, محمد, حسنی, داراب, محمودی, راضیه, وحدتی, کوروش,

Walnut is one of the most important nut crops in Iran. Because of its sexual propagation in Iran, the tree shows a high genetic diversity. In this study, the correlations between trunk cross-sectional area, scaffold cross area, crop density per trunk cross-sectional area and scaffold cross area, number of leaves and leaf area per nut, nut number to branch cross-sectional area, leaf number to br...

2014
Dimah Z. Habash Marcela Baudo Matthew Hindle Stephen J. Powers Michael Defoin-Platel Rowan Mitchell Mansoor Saqi Chris Rawlings Kawther Latiri Jose L. Araus Ahmad Abdulkader Roberto Tuberosa David W. Lawlor Miloudi M. Nachit Pilar Hernandez

Durum wheat is susceptible to terminal drought which can greatly decrease grain yield. Breeding to improve crop yield is hampered by inadequate knowledge of how the physiological and metabolic changes caused by drought are related to gene expression. To gain better insight into mechanisms defining resistance to water stress we studied the physiological and transcriptome responses of three durum...

This experiment was designed for easy and accurate estimation of corn plant leaf area with multilayer perceptron (MLP) neural network and conducted at Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran in 2013. Three plant densities (75, 85 and 95 thousand plants/ha) and five genotypes (Persia 454, 484, 565, 626 and 647) were considered as treatments. Samplings were conducted a...

احتشامی, سید محمدرضا , امین‌دلدار, زهرا , خاوازی, کاظم ,

In order to study the effects of foliar spraying of Pseudomonas fluorescens bacteria on quantitative characteristics, yield and yield components of two rice cultivars, a factorial experiment, based on completely randomized design with three replications, was conducted in Rice Research Institute of Rasht, Guilan province, Iran. In this experiment, two rice cultivars (Khazar and Hashemi) were spr...

آرمینیان, علی, هوشمند, سعدالله,

     Determining the relationships between grain yield and some yield components of wheat is most important in permanent yield production.  Using path coefficient analysis in order to determine key traits affecting majorly yield, and also to study direct and indirect effects of yield and yield components, this research was performed during 2006-2009 ys using 94 doubled-haploid (DH) lines, their...

بائوم, مایکل , محمدی, محتشم ,

Improving the drought tolerance of barley varieties through the integrated efforts of plant biotechnology and conventional breeding is an important objective in barley breeding. One hundred and fifty eight doubled haploid lines of barley were mapped with 50 SSR and 93 AFLP markers. Agronomic traits such as early growth vigor, plant height, peduncle length, extrude of spike from flag leaf, spike...

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