نتایج جستجو برای: chlorophyll content index

تعداد نتایج: 807159  

Journal: :Tree physiology 1990
Paul J. Curran Jennifer L. Dungan Henry L. Gholz

Chlorophyll is a key indicator of the physiological status of a forest canopy. However, its distribution may vary greatly in time and space, so that the estimation of chlorophyll content of canopies or branches by extrapolation from leaf values obtained by destructive sampling is labor intensive and potentially inaccurate. Chlorophyll content is related positively to the point of maximum slope ...

Journal: :علوم گیاهان زراعی ایران 0
امیر قلی زاده کارشناس ارشد، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس حمید دهقانی دانشیار، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس جان دوراک استاد گروه اصلاح نباتات، دانشگاه کالیفرنیا، آمریکا

the measurement of chlorophyll content of leaf is as an appropriate criterion in breeding programs to increase the rate of leaf photosynthesis. in order to study the relationship between chlorophyll content and seed yield under saline conditions, 41 wheat genotypes were evaluated in two conditions (normal and salinity stress) at the research field of the national salinity research center (nsrc)...

Journal: :تولید گیاهان زراعی 0
علی چهل گردی دانشجوی کارشناسی ارشد گروه زراعت و اصلاح نباتات دانشگاه شهید باهنرکرمان مهری صفاری دانشیارگروه زراعت و اصلاح نباتات دانشگاه شهید باهنر کرمان روح الله عبدالشاهی استادیارگروه زراعت و اصلاح نباتات دانشگاه شهید باهنر کرمان

drought stress is one of the most important problems of agriculture and an important factor of plant product reduction. application of absorbent materials can help usage of sporadic rain fall and cause more maintenance of water storage. in order to study the effect of super absorbent polymer, potassium sulfate and manure under drought condition and favorable irrigation on some traits of foxtail...

2015
Abhinav Garg Pallavi Saxena Chirashree Ghosh

Emissions from motor vehicle exhausts have been shown to have deleterious effects on the physiology of plant species. Our present study focuses on evaluating the tolerance and sensitivity of selected plant species viz. Dracaena deremensis (good absorber of VOCs) and Dianthus caryophyllus (susceptible to ethylene and formaldehyde (VOCs)) at selected sites which are differentiated on the basis of...

Journal: :Tarim Bilimleri Dergisi-journal of Agricultural Sciences 2023

In the present study, leaf micromorphlogical properties, stoma indexs and chlorophll contents of 20 Turkish hazelnut (Corylus avellana) cultivars were studied. Investigated “Acı, Allahverdi, Cavcava, Çakıldak, Foşa, Giresun melezi, Incekara, Kalınkara, Kan, Karafındık, Kargalak, Kuş, Mincane, Okay 28, Palaz, Sivri, Uzunmusa, Tombul, Yassı Badem, Yuvarlak Badem”. Three wax ornamentation types ar...

Journal: :پژوهش های حبوبات ایران 0
سعیدرضا حسین زاده منیرة چنیانی اعظم سلیمی

in order to evaluate the effects of foliar application of methanol on some physiological characteristics of chickpea under drought stress, an experiment was conducted as a factorial based on completely randomized design with three replications in 2011 at the recearch center of plant for sciences in ferdowsi university of mashhad. the first factor was different levels of methanol including, 0 (c...

2016
Baizhao Ren Jiwang Zhang Shuting Dong Peng Liu Bin Zhao

A field experiment was performed to study the effects of waterlogging on the leaf mesophyll cell ultrastructure, chlorophyll content, gas exchange parameters, chlorophyll fluorescence, and malondialdehyde (MDA) content of summer maize (Zea mays L.) hybrids Denghai605 (DH605) and Zhengdan958 (ZD958). The waterlogging treatments were implemented for different durations (3 and 6 days) at the third...

2017
Weiping Kong Wenjiang Huang Xianfeng Zhou Huichun Ye Yingying Dong Raffaele Casa

Monitoring the vertical profile of leaf chlorophyll (Chl) content within winter wheat canopies is of significant importance for revealing the real nutritional status of the crop. Information on the vertical profile of Chl content is not accessible to nadir-viewing remote or proximal sensing. Off-nadir or multi-angle sensing would provide effective means to detect leaf Chl content in different v...

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