Shiraz University Iran Agricultural Research 1013-9885 36 2 2023 02 20 Qualitative characteristics of sugar beet as affected by different broadleaf herbicides combinations بررسی خصوصیات کیفی چغندرقند تحت تأثیر ترکیب‏ های مختلف پهن‏ برگ‏ کش‏ ها 1 6 4126 10.22099/iar.2017.4126 EN M. Majidi Departmentof Crop Production and Plant Breeding, College of Agriculture, Shiraz University, Shiraz, I. R.Iran Gh. Heidari Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Kurdistan, Sanandaj, I.R. Iran. Y. Emam Departmentof Crop Production and Plant Breeding, College of Agriculture, Shiraz University, Shiraz, I. R.Iran Journal Article 2015 05 14 ABSTRACT-Several herbicides are registered for selective weed control in sugar beet; however, no single chemical herbicide can control all weeds in beet fields. Frequently, two or more herbicides may have to be combined sequentially or as tank mixed to achieve adequate broad-spectrum weed control. In order to evaluate the effects of some combinations of broadleaf herbicides on sugar beet yield and quality, a field experiment was conducted in randomized complete block design with three replications at Miandoaab Agricultural Research Station during 2009-2010 growing season. The results showed that weed competition decreased root yield up to 84%. The maximum root yield (73.66 tha-1) was obtained from 4.5 kgha-1metamitron application at 2-to 4-leaf stage and the minimum root yield was obtained in the control (20.66tha-1). The herbicide treatments had a significant effect on white sugar content so that the highest white sugar yield was achieved from bettanal Progress Am herbicide (10.9 tha-1) and the lowest white sugar yield was found in control treatment (1.49 tha-1). The lowest sodium, potassium, amino-nitrogen as well as molasses content were obtained from phenmedipham + desmedipham + ethofumesate and the highest value for the above parameters was observed in control treatment. Generally, weed competition led to decreasing root yield and sugar content and treatment bettanal Progress Am herbicide was recommended to control broadleaf weeds.

https://iar.shirazu.ac.ir/article_4126_4042291e0b217d9ab94610e6c30406d7.pdf

Shiraz University Iran Agricultural Research 1013-9885 36 2 2023 02 20 Potato yield and tuber quality as affected by gibberellic acid and zinc sulfate تأثیرجیبرلیک اسید و سولفات روی بر عملکرد و کیفیت ژوخه سیب‌زمینی 7 12 3881 10.22099/iar.2016.3881 EN Jamal Javanmardi Department of Horticultural Sciences, College of Agriculture, Shiraz University, Shiraz, I. R. Iran F. Rasuli Department of Horticultural Sciences, College of Agriculture, Shiraz University, Shiraz, I. R. Iran Journal Article 2016 11 06 Abstract Obtaining high potato (Solanum tuberosum L.) tuber yield through increased number and weight of quality tubers is important for farmers while the quality factors are of interest for food processing industries. Potato processing industries require high quality tubers having the highest possible dry matter, starch and protein contents. A two-year field study was carried out as a factorial experiment in a randomized complete block design during 2013 and 2014. Gibberellic acid (GA3 at 0, 100, 200 and 400 mg·L-1 levels) and zinc sulfate (at 0, 500, 1000 and 2000 mg·L-1 levels) were foliar sprayed on potato plants 20 and 50 days after tuber sprouting, respectively. There was no significant difference in all measured criteria between two years of experiment. Comparing to control, a 38% increase in total tuber yield resulted from treatment with 200 mg·L-1 GA3 and 1000 mg·L-1 zinc sulfate. The greatest tuber dry matter content (24.33 g·100g-1 fw) obtained from 200 mg·L-1 GA3 plus 2000 mg·L-1 zinc sulfate treatment, while the highest starch contents (32.56 % tuber fresh weight) was obtained from sole application of zinc sulfate at 2000 mg·L-1.Application of GA3 at 400 mg·L-1 and zinc sulfate at 2000 mg·L-1resulted the highest tuber crude protein content of 8.37% tuber dry weight which was over twice as control treatment. Manipulating plant nutrition and fertilization could be used as a powerful tool to obtain desired quality and quantity of potato tuber.

https://iar.shirazu.ac.ir/article_3881_6428b6889beb78c34e88de6802297cee.pdf

Shiraz University Iran Agricultural Research 1013-9885 36 2 2023 02 20 Effect of plant density and different irrigation strategieson crop yield and canopy cover of red beans, Phaseolusvulgaris L. cv. Akhtar اثر تراکم کاشت و چهار استراتژی آبیاری بر عملکرد و پوشش سبز گیاه لوبیا قرمز، رقم اختر 13 22 4145 10.22099/iar.2017.4145 EN M. Asemanrafat Department of Water Engineering, Faculty of Agriculture, Shiraz University, Shiraz, I. R. Iran T. Honar Department of Water Engineering, Faculty of Agriculture, Shiraz University, Shiraz, I. R. Iran Journal Article 2016 01 05 ABSTRACT- In order to study the effects of different irrigation regimes and plant density on yield and yield components of bean, a split plot arrangement was conducted in complete randomized block design during two years. The foremost variable was four levels of irrigation: 60, 80, 100, and 120% of the potential evapotranspiration. The second variable was within the row spacing of 5 cm (D1), 10 cm (D2) and 15 cm (D3) in three replications. The dry biomass and yield of bean were shown to be significantly affected by the difference within row spacing and irrigation. Results indicated that the dry biomass and grain yield increased when the density of planting and irrigation increased. In 2013, the maximum yield was 3061.8 kg ha-1, occurring at 120% of potential evapotranspiration and the 5 cm within row spacing. The maximum water use efficiency was 0.33 kg m-3, occurring at 100% of potential evapotranspiration and the 5 cm within row spacing. Minimum yield and water use efficiency under the condition of 60% potential evapotranspiration and within row spacing of 15 cm were 834.2 kg ha-1 and0.12 kg m-3, respectively. With respect to 100% potential evapotranspiration and within row spacing of 5 cm in 2014, the maximum yield and water use efficiency were 3305.2 kg ha-1 and 0.34 kg m-3, respectively. Minimum yield and water use efficiency were 1150.0 kg ha-1 and 0.17 kg m-3, respectively for 60% potential evapotranspiration and within row spacing of 15 cm.

https://iar.shirazu.ac.ir/article_4145_66e0ac78fc4e0499efa453dd02415e6f.pdf

Shiraz University Iran Agricultural Research 1013-9885 36 2 2023 02 20 Field evaluation of a grain drill equipped with jointers for direct planting in previous wheat crop residues ارزیابی مزرعه ‏ای خطی‏ کار مجهز به پیش‏ خیش به منظور کشت مستقیم در بقایای گیاهی گندم 23 30 4117 10.22099/iar.2017.4117 EN S. Abdollahpour Department of Biosystems Engineering, College of Agriculture, Shiraz University, Shiraz, I. R. Iran S.M.H. Karparvarfard Department of Biosystems Engineering, College of Agriculture, Shiraz University, Shiraz, I. R. Iran Journal Article 2015 07 05 ABSTRACT-In conventional agriculture, a large amount of energy is consumed in fuel consumption and depreciation of farm tractors and any other farm equipment mostly in tillage and planting operations. The main purpose of this research was to evaluate a till-planting unit equipped with three jointers. This unit was expected to act as conventional furrow openers such as shovel openers tilling the soil and plant simultaneously, which could reduce farm traffic and farming costs. The unit performance was compared to that of a grain drill. The control experiment was conducted on a moldboard plowed soil, disked by a tandem disk harrow and planted by a pneumatic grain drill. The experimental site was also covered with previous wheat crop residue and the soil was clay with loam at 15.2% d.b. moisture content. The working depth was 6 and 20 cm for direct planting and conventional system, respectively. The experiments were performed at three tractor forward speeds (4, 6 and 8 km h-1) in triplicate in the Experiment Site of Shiraz University, Shiraz, Iran. Results indicated that the direct planting system reduced the operation time, fuel consumption, draft and specific drawbar energy 65, 60, 75 and 80%, respectively as compared to the conventional practice. However, values of the mean weight diameter and seedling growth rate did not show any significant difference in the two cases at 5% level. Furthermore, moisture retention in direct planting system increased 1.87% per 10 days as compared with the conventional farming system.

https://iar.shirazu.ac.ir/article_4117_cc3f5991335b8da4c3e0ba2a9cda1d4c.pdf

Shiraz University Iran Agricultural Research 1013-9885 36 2 2023 02 20 Estimation of zeolite application effect on solute transport parameters at different soils using HYDRUS-1D model برآورد اثر کاربرد زئولیت بر پارامترهای انتقال در خاک‌های مختلف با مدل Hydrus-1D 31 40 4107 EN Maliheh Fooladi Dorhani Department of Water Engineering, Faculty of Agriculture, Shiraz University, Shiraz, I. R. Iran A. R. Sepaskhah Department of Water Engineering, Faculty of Agriculture, Shiraz University, Shiraz, I. R. Iran Journal Article 2016 05 07 ABSTRACT-Application of models for simulation of solute and pollutants transport in soil can reduce time and costs for remediation process. HYDRUS-1D model was developed to simulate the one–dimensional flow of soil water, heat, solute and viruses in variably saturated–unsaturated porous media. The objective of this investigation is to determine the solute transport parameters in disturbed soil columns with different textures at different rates of zeolite application using HYDRUS-1D model. For this study, the loam soil, the sandy loam soil and the clay loam soil with zeolite application rates of 0 (control) and 8 g kg-1 were used. The approximate concentration of effluents measured by other investigators (0-2.26 mg cm-3) is used to determine the transport parameters. The value of immobile water content (θim) decreased and the value of hydrodynamic dispersion coefficient increased in lighter soil texture. According to hydraulic parameters considered and regression equation proposed by other researchers, the decreasing trend of θim is valid with increasing saturated hydraulic conductivity. The predicted dispersivity (λ) in control treatment was in the range of value of λ for disturbed soil reported by other researchers. The trend of solute transport parameters calculated by breakthrough curve using the analytical method by other researchers is similar to the estimated values by the HYDRUS-1D model. The values of Willmott’s agreement index are more than 90% for all soil treatments and normalized root mean square error is about 20% for most treatments that indicated the good accuracy of model for predicting solute transport coefficients.

https://iar.shirazu.ac.ir/article_4107_5925714a8b712b6630cc409ca091682a.pdf

Shiraz University Iran Agricultural Research 1013-9885 36 2 2023 02 20 An economic-risk analysis of alternative rotations by stochastic simulation in Fars province تحلیل ریسکی اقتصادی تناوب های زراعی منتخب با استفاده ازشبیه سازی تصادفی دراستان فارس 41 46 4173 10.22099/iar.2017.4173 EN A. Sheikhzeinoddin Department of Agricultural Economics, College of Agriculture, Shiraz University, Shiraz, I.R. Iran M. Bakhshoodeh Department of Agricultural Economics, College of Agriculture, Shiraz University, Shiraz, I.R. Iran H. Dehghanpur Department of Agricultural Economics, College of Agriculture, Shiraz University, Shiraz, I.R. Iran Journal Article 2014 04 28 ABSTRACT - Cultivation of legumes in crop rotations results in atmosphere nitrogen fixation. After harvesting, part of this external nitrogen remains in soil and is used by subsequent crops. This implies that producers would gain from lowering the amount of nitrogen fertilizer in their fields. In this study, stochastic simulation is used to generate probability distributions of net present value for alternative rotations by Simetar software. Moreover, the alternative rotations were ranked applying stochastic dominance with respect to function (SDRF) and stochastic efficiency with respect to function (SERF). The results of both procedures showed that cereals-oilseed with onion and legume rotation is most preferred for risk-neutral decision makers and cereals–oilseed with legumes rotation is most preferred for risk-averse decision makers. Therefore, including a legumes crop in the rotation can reduce nitrogen required by a subsequent crop and so increase the net present income associated with that rotation.

https://iar.shirazu.ac.ir/article_4173_8531e2ea7a4672ac6e109c0374312888.pdf

Shiraz University Iran Agricultural Research 1013-9885 36 2 2023 02 20 Effect of amino acid and mycorrhiza inoculation on sweet pepper growth under greenhouse conditions اثر آمینواسید و تلقیح مایکوریز بر رشد فلفل دلمه در گلخانه 47 54 4163 10.22099/iar.2017.4163 EN M. Haghighi Department of Horticulture, College of Agriculture, Isfahan University of Technology, Isfahan, I. R. Iran M. R. Barzegar Department of Horticulture, College of Agriculture, Isfahan University of Technology, Isfahan, I. R. Iran Journal Article 2016 02 12 ABSTRACT- The production of greenhouse sweet pepper is increasing because of the consumer demand for sweet pepper year around. In this study, physiological characteristics of sweet pepper were evaluated in a greenhouse under different levels of arbascular mycorrhizal fungus, Glomus intraradices, (AMF) and various levels of amino acid (AA). Treatments included no AMF as a control (AMF1), 1000 spores (AMF2) and 2000 spores (AMF3) of the AMF and four amino acid concentrations including control (C), 3 g (AA1), 4.5 g (AA2) and 6 g (AA3) of AA. Results indicated that mycorrhiza inoculation and mixture of amino acid increased shoot and root fresh weights. AMF application did not affect transpiration, chlorophyll content, and P and K concentration; nevertheless, photosynthesis improved with AMF. Fruit quality also improved under AMF2 and AMF3 treatments. Finally, it was concluded that with higher AA concentration and 1000 spores of mycorrhiza, more positive effects on sweet pepper growth could be observed.

https://iar.shirazu.ac.ir/article_4163_a2894626481c47b3e9b79dbba6a90f55.pdf

Shiraz University Iran Agricultural Research 1013-9885 36 2 2023 02 20 Productivity and economic efficiency of wheat in rotation with cotton ارزیابی بازده اقتصادی و قابلیت تولیدگندم در شرایط تناوب باپنبه 55 60 4149 10.22099/iar.2017.4149 EN Jasem Aminifar Department of Agronomy, Faculty of Agriculture, University of Zabol, Zabol, I. R. Iran. M. Ramroudi Department of Agronomy, Faculty of Agriculture, University of Zabol, Zabol, I. R. Iran. M. Galavi Department of Agronomy, Faculty of Agriculture, University of Zabol, Zabol, I. R. Iran Gh. Mohsenabadi Department of Agronomy, Faculty of Agriculture, University of Guilan, Rasht, I. R. Iran Journal Article 2016 09 14 ABSTRACT- Crop rotation has many benefits for agro-ecosystems production. In order to evaluate two current rotation systems of wheat (Triticum aestivum L.) production in Kamalabad region of Fasa, an experiment was conducted during 2015-2016 growing season. The rotation systems were fallow-wheat and cotton (Gossypium spp.)-wheat. Research plots were arranged as a randomized complete block design with two blocks. The results showed that seed yield and yield components of wheat were significantly affected by rotation systems. The highest and lowest seed yield and yield components (except 1000 seeds weight and biological yield) and economical value were obtained when wheat was planted after fallow and cotton, respectively. However, the estimation of rotation indices and economic value of rotation systems showed that the highest rotation duration, land use efficiency, production efficiency, and total economic value were obtained from cotton-wheat rotation. Also, the determination of effective traits in wheat yield showed that plant height, spikes per m2, seeds per spike and harvest index were highly correlated with grain yield. Therefore, although planting wheat after fallow produced more seeds, in terms of total ecosystem production and land use efficiency, this system showed lower productivity and economic efficiency compared to cotton-wheat rotation. Thus cotton-wheat rotation could be adopted by farmers for more production.

https://iar.shirazu.ac.ir/article_4149_bc00de47a94af7f1508bc99b01368b2b.pdf

Shiraz University Iran Agricultural Research 1013-9885 36 2 2023 02 20 Evaluation of different growth media for tomato seedlings to optimize production and water use ارزیابی بسترهای کشت مختلف برای رشد نشاء گوجه فرنگی در جهت بهینه سازی تولید و مصرف آب 61 70 4138 10.22099/iar.2017.4138 EN H. MirseyedHosseini Department of Soil Science, Faculty of Agriculture and Natural Resources, Karaj, I. R. Iran E. Alavipoor Department of Soil Science, Faculty of Agriculture and Natural Resources, Karaj, I. R. Iran M. Delshad Department of Soil Science, Faculty of Agriculture and Natural Resources, Karaj, I. R. Iran Journal Article 2014 10 16 ABSTRACT- Soilless cultivation systems are used to attain higher performance, improve crop quality, conserve water and land, and protect the environment better. This study has attempted to use some agricultural wastes and organic matter, and management practices to optimize water holding capacity of cultural media, which are suitable for the growth of tomato seedlings (Solanum lycopersicum.). Fifteen different substrate (growth media) mixtures with a mineral fraction (sand and perlite) and organic fractions (bagasse, oak tree bark, poplar wood chips) were prepared and compared. Sand (2-4mm) and perlite (4-6 mm) were mixed at 0, 10, 20, 30 and 40 percent volume ratios with organic fractions at 0, 30 and 60 percent. The experiment was arranged in a completely randomized design with 15 treatments and 3 replications with 6 observations per treatment. During the seedling growth period (45 days), every 7 days, 90 seedlings were harvested (data for three periods were used) to determine the effect of the growth media on different growth parameters(plant dry matter and leaf area) and indices (RGR, NAR, and SER). The growth rate of tomato seedlings generally increased over time the rate of which varied with treatments. Seedling height, stem diameter, plant fresh weight and dry matter indicated that the highest length (25.91 cm) and diameter (4.83 cm) of the tomato seedlings was in treatment eight (S30P10T30B0C30). It was also shown that the sand fraction as a mineral component had a better performance compared to perliter in growth parameters. For the organic component of the growth media, tree bark treatments were better than wood chips or bagasse. The bagasse treatment had the lowest fresh weight and dry weight of shoot and root. The treatments with water holding capacity of 90-100% showed the best response in the growth of tomato seedlings.

https://iar.shirazu.ac.ir/article_4138_0c4569d6de1296d97886bc102737833a.pdf

Shiraz University Iran Agricultural Research 1013-9885 36 2 2023 02 20 The study of particle size distribution of calcium carbonate and its effects on some soil properties in khuzestan province مطالعه توزیع اندازه‌ای ذرات کربنات کلسیم و اثرات آن بر برخی ویژگی‌های خاک‌های استان خوزستان 71 80 4147 10.22099/iar.2017.4147 EN N. Asgari Hafshejani Department of Soil Science, Ramin University of Agriculture and Natural Resources, Ahvaz University,Ahvaz, I.R. Iran S. Jafari Department of Soil Science, Ramin University of Agriculture and Natural Resources, Ahvaz University,Ahvaz, I.R. Iran Journal Article 2017 08 08 ABSTRACT-This experiment was carried out to study particle size distribution (PSD) of carbonates in soils and its effect on some calcareous soil properties in Khuzestan Province, Iran. Soil samples (n=72) were collected from different regions. To evaluate the effect of carbonates on water contents at pressure head of -1500kpa and PSD of soil samples, these properties were determined before and after removing their calcium carbonate. Based on the results, removal of CaCO3 led to a change in PSD in all the samples and 70% of those changed textural class. Carbonates were most accumulated in clay and sand size in Abadan region while they were accumulated in silt and sand fractions in other areas. Also, evaluation of moisture retention at permanent wilting point (PWP) showed that this feature has been reduced in all samples after removal of carbonates. Following these changes, verification of key to soil taxonomy equation [Clay%= 2.5(% water retained at -1500 kPa tension-%organic carbon)] in calcareous soils of Khuzestan Province showed that this equation can be used with high reliability in calcareous soils of Abadan, Karoon, Haft-Tape agro-industries. However, this equation is not valid in Amir-Kabir and Debal-Khozaiea gro-industries. Our fitted equation [Clay % = (4.35*% water retained at -1500 kPa tension +35.3* % organic carbon)] has high reliability in predicting clay content in non-carbonate samples. This result suggests that the presence of carbonates and its distribution in soil particle size is an important factor in the variability of soil properties at arid and semiarid areas.

https://iar.shirazu.ac.ir/article_4147_3797455d5ff907097e58083fa5f6f6bd.pdf

Shiraz University Iran Agricultural Research 1013-9885 36 2 2023 02 20 The effect of neutralized and non-neutralized pomegranate pulp on features of Eisenia fetida and vermicompost تاثیرترکیب درصدهای مختلف تفاله انارخنثی شده و خنثی نشده باکود گاوی بر ویژگی‌های کرم‌های Eisenia Fetida و ورمی-کمپوست 81 90 4192 10.22099/iar.2017.4192 EN H. Allahyari Department of soil science, Soil and Water Engineering Faculty, University of Zabol, Zabol I. R. Iran Ahmad Gholamalizadeh Ahangar Department of soil science, Soil and Water Engineering Faculty, University of Zabol, Zabol I. R. Iran A. Shirmohammadi Department of soil science, Soil and Water Engineering Faculty, University of Zabol, Zabol I. R. Iran T. Hadad Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Zabol, Zabol I.R. Iran Journal Article 2006 11 25 ABSTRACT - Vermicomposting with pomegranate pulp can not only prevent pollution of the environment but can also create jobs, generate added value and prevent the waste of energy and the country's capital. This factorial experiment was conducted in a completely randomized design. The first factor (a) in two levels contained neutralized pomegranate pulp with lime and non-neutralized pulp. The second factor (b) vermicomposting mediums which included 9 levels of pomegranate pulp (with levels of 0, 5, 10, 15, 20, 25, 30, 35, and 40 percentage) and cow manure in three replications that formed a total of 54 experimental units. Also, ninety mature earthworms (Eisenia fetida) were put into each experimental unit. During the experiment, the daily moisture of mediums was set by weight at 70% of field capacity and the growth chamber temperature at 25±2˚C. The results showed that if pomegranate pulp percentage increases, the population of infant worms (220 worms) and Eisenia fetida worms’ cocoons (114 numbers) decreases but increasing the population and biomass of adult worms was observed at level of 25 percentage of pomegranate pulp. In addition, the percentage of organic carbon (30.32%) and vermicompost C/N ratio (27.87%) increased by pomegranate pulp enhancement in medium. Also, the highest percentage of nitrogen of vermicompost (1.69%) was found at level of 25 percentage of pomegranate pulp. Furthermore, neutralized pomegranate pulp with lime had improved the measured traits in produced vermicompost and worms compared to non-neutralized pulp in most cases.

https://iar.shirazu.ac.ir/article_4192_660556d6086c6c814a1a5f92638ca70f.pdf

Shiraz University Iran Agricultural Research 1013-9885 36 2 2023 02 20 Evaluation of selenium and salicylic acid effect on physiological and qualitative characteristics of dry-land wheat cultivars بررسی تاثیر سلنیوم و سالیسیلیک اسید بر خصوصیات فیزیولوژیکی و کیفیت دانه در ارقام گندم دیم 91 100 4228 10.22099/iar.2017.4228 EN Nourali Sajedi Department of Agronomy and plant breeding, Arak Branch, Islamic Azad University, Arak, I. R. Iran Journal Article 2017 03 12 ABSTRACT-This experiment was carried out as factorial based on a randomized complete block design with three replications at the research station of the Islamic Azad University-Arak Branch, Iran, in 2011 and 2012. Experimental factors consisted of three levels of salicylic acid (SA); seed priming with distilled water (hydro priming), seed priming with 0.5 mM SA, and 0.5 mM SA seed priming 1 mM SA spraying; two levels of selenium (Se); 0 and 20 g ha-1, and three rain-fed wheat cultivars: Azar 2, Sardari, and Rasad. The results showed that SA seed priming combined with foliar application together with spraying of Se increased the relative water content in Azar 2 and Rasad cultivars compared to the hydro priming. The foliar application of Se increased the leaves proline amounts and grain Se concentration in wheat cultivars. Priming with SA combined with a spray of Se decreased the electrolyte leakage by 32% as compared to the control. The application of SA combined with foliar application of Se increased the proline amounts of leaves and grain Se concentration. Seed priming of SA in combination with foliar application of Se increased the grain gluten content in Sardari and Rasad cultivars. The highest productivity index (63.12%) and grain yield (1585.01 kg ha-1) were obtained from Azar 2 cultivar. The results suggested that applying SA and Se may help in alleviating damage and improving the tolerance of drought stress and grain quality in wheat.

https://iar.shirazu.ac.ir/article_4228_c47d82e2200e673819da1c533187265a.pdf

Shiraz University Iran Agricultural Research 1013-9885 36 2 2023 02 20 Leaf area estimation by a simple and non-destructive method تخمین سطح برگ به روش ساده و غیر تخریبی 101 105 4157 10.22099/iar.2017.4157 EN Ali Shabani Department of Irrigation, College of Agriculture, Fasa University, Fasa, I. R. Iran A. R. Sepaskhah Department of Irrigation, College of Agriculture, Shiraz University, Shiraz, I. R. Iran Journal Article 2015 12 20 In this study, the relation between leaf area and its dimensions was estimated using a non-destructive method. This method is based on this fact that the leaf shape does not change during the growing season. In this method, leaf area during the growing season is estimated based on the dimensions of the smallest leaf in the initial stage of plant growth or at any growth stage by measuring the leaf area and dimensions of this leaf (K= ), where the K value was obtained by dividing the measured area of smallest leaf (LAs) by its dimensions; length (Ls) and width (Ws).This method was used for 16 plant species. The values of the index of agreement and normalized root mean square error for all plants showed a good agreement between the measured and estimated leaf area by this method.

https://iar.shirazu.ac.ir/article_4157_f7537396167a631d060d241bfe25fbc4.pdf