نتایج جستجو برای: chlorophyll b and total chlorophyll content

تعداد نتایج: 17019425  

Journal: :Plant physiology 1986
J P Markwell S J Danko H Bauwe J Osterman H J Gorz F A Haskins

The ch4 mutant of sweetclover (Melilotus alba) has previously been demonstrated to be partially deficient in chlorophyll and to have a higher ratio of chlorophyll a to b than normal plants. We were able to substantiate these findings when plants were grown at 23 degrees C and lower (permissive temperatures). However, when grown at 26 degrees C (nonpermissive temperature) the plants produced sma...

A. Dezhban al et

Afforestation of contaminated areas is considered as a possible strategy for reduction of contaminations. In the present study, the effects of lead (Pb) and cadmium (Cd) were investigated on chlorophyll fluorescence parameters (Fv/Fm, Fo, and Fm), photosynthetic pigments (chlorophyll a, b, and total chlorophyll), and proline in one-year-old seedlings of Celtis caucasica and Robinia pseudoacacia...

Journal: :علوم باغبانی ایران 0
رضا فیفایی دانشجوی دکتری، دانشکدۀ علوم کشاورزی دانشگاه گیلان، رشت و مربی بخش نهال و بذر مؤسسۀ تحقیقات علوم باغبانی، پژوهشکدۀ مرکبات و میوه های نیمه گرمسیری، سازمان تحقیقات، آموزش و ترویج کشاورزی، رامسر، ایران رضا فتوحی قزوینی استاد، دانشکدۀ علوم کشاورزی، دانشگاه گیلان، رشت، ایران بهروز گلعین دانشیار، بخش نهال و بذر، مؤسسۀ تحقیقات علوم باغبانی، پژوهشکدۀ مرکبات و میوه های نیمه گرمسیری، سازمان تحقیقات، آموزش و ترویج کشاورزی، رامسر، ایران یوسف حمیداوغلی دانشیار، دانشکدۀ علوم کشاورزی، دانشگاه گیلان، رشت، ایران

as regards citrus growing in sub-tropical and tropical regions that often expose drought, in order to investigation of some citrus seedlings response to drought this research was done in factorial experiment based on randomized completely design with three replication under glasshouse conditions. first factor were five citrus rootstocks and second factor included two treatment of irrigation (op...

Journal: :پژوهش های تولید گیاهی 0

in this study, the effect of four citrus rootstocks {sour orange (citrus aurantium), bakraeii (c. reticulata × c. aurantium, mexican lime (c. aurantifolia) and volkamerlemon (c. volkameriana)} on orlando tangelo leaf chlorophyll content and mineral element concentrations (n, p, k, ca, na, mg, fe, zn, mn, cl, cu, and b) have been evaluated in completely randomized design with four replications. ...

Journal: :Journal of environmental biology 2007
J K Datta S Chakraborty S Gupta R N Saha N Mondal

In order to screen out the best variety of wheat (Triticum aestivum) out of eight varieties (viz., HP 1633, BW 11, NW 1014, Sonalika, HUW 468, K 9107, HP 1731 and HUW 234), a field experiment was conducted (from Dec. 2002 to April 2003) in a randomized block design replicated thrice at Crop Research and Seed Multiplication Farm, Burdwan University, West Bengal, India. Various morpho physiologic...

In order to investigate the effect of dehydration stress and planting date on some physiological indices and growth of Cymbopogon citratus, a field experiment in the form of a split plot in a randomized complete block design with 3 replications, including 3 levels of different irrigation (100% full irrigation as a control, 75 and 50% full irrigation) and 3 levels of planting date including 20 M...

Journal: :علوم باغبانی 0
عسکر غنی سید حسین نعمتی مجید عزیزی محمد جمال سحرخیز محمد فارسی

a pot experiment was conducted to evaluate the extract biochemical variations among 25 spearmint population. the experiment was a randomized complete design (rcd) with 25 treatments (population) and three replications. for this purpose, three rhizomes with 5 cm length were selected and planted in each pot. all pots were kept out side. the plant samples of all treatments were harvested at full f...

Journal: :علوم باغبانی ایران 0
حسن فرهادی دانشجوی کارشناسی ارشد، دانشکدۀ کشاورزی، دانشگاه فردوسی مشهد مجید عزیزی استاد، دانشکدۀ کشاورزی، دانشگاه فردوسی مشهد سید حسین نعمتی استادیار، دانشکدۀ کشاورزی، دانشگاه فردوسی مشهد

fenugreek is one of the important medicinal plant that used in the pharmaceutical industry. in order to investigate the effects of salinity stress on relative water content, membrane stability, total chlorophyll, sodium, potassium, sodium to potassium ratio and proline, a factorial experiment was conducted in a completely randomized design with three replications in 2013. experimental treatment...

2008

The pigment and acyl lipid composition ofphotochemically active stroma lamellae and inside-out photosystem II vesicles have been investigated. Mechanical disruption followed by phase partitioning in an aqueous two phase system resulted in a clean separation of the photosystems. A qualitative and quantitative determination of the pigment content was achieved using reversed-phase high performance...

Esmaielpour, B., Fatemi, H., Moradi, M.,

Drought stress is one of the most important restricting factors for plant yield in arid and semi-arid regions. Seaweed extract, as a biofertilizer, enhances plant resistance against abiotic stresses via accelerating seed germination, root growth enhancement and uptake of plant nutrients. The present research was carried out to investigate the effects of foliar spraying of Ascophyllum nodosum se...

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