نتایج جستجو برای: root to shoot ratio

تعداد نتایج: 10697754  

Journal: :Plant physiology 2015
Vincent Chochois John P Vogel Gregory J Rebetzke Michelle Watt

Seedling roots enable plant establishment. Their small phenotypes are measured routinely. Adult root systems are relevant to yield and efficiency, but phenotyping is challenging. Root length exceeds the volume of most pots. Field studies measure partial adult root systems through coring or use seedling roots as adult surrogates. Here, we phenotyped 79 diverse lines of the small grass model Brac...

Journal: :journal of agricultural science and technology 0
m. arghavani department of horticulture, faculty of agriculture, university of zanjan, zanjan, p. o. box: 313-45195, islamic republic of iran. a. zaeimzadeh department of horticulture, faculty of agriculture, university of zanjan, zanjan, p. o. box: 313-45195, islamic republic of iran. s. savadkoohi department of horticulture, faculty of agriculture, university of zanjan, zanjan, p. o. box: 313-45195, islamic republic of iran. l. samiei department of ornamental plants, research center for plant sciences, ferdowsi university of mashhad, mashhad, islamic republic of iran.

in most semiarid and arid areas, fresh water shortage compels managers to use low quality water sources with high salinity to irrigate turf and landscape. recent research has noticed that management of nitrogen fertilization can alleviate salinity effects on plants. this greenhouse sand culture experiment was conducted in order to investigate morphological and physiological responses to salinit...

2015
M. Andrews M. Lieffering B. A. McKenzie

Effects of additional nitrate (20 mol m·3 NO;) on growth of barley (Hordeum vulgare L. cv. Triumph), oat (Avena sativa L. cv. Amuri), rye (Secale cereale L. cv. Rapaki), triticale (x Triticosecale Wittm. cv. Aranui) and wheat (Triticum aestivum L. cv. Otane) prior to emergence from a sowing depth of 70 mm were examined under controlled environment. conditions. For all five cereals, additional N...

Journal: :Plant physiology 2011
Eric M Engstrom Carl M Andersen Juliann Gumulak-Smith John Hu Evguenia Orlova Rosangela Sozzani John L Bowman

Maintenance of indeterminacy is fundamental to the generation of plant architecture and a central component of the plant life strategy. Indeterminacy in plants is a characteristic of shoot and root meristems, which must balance maintenance of indeterminacy with organogenesis. The Petunia hybrida HAIRY MERISTEM (HAM) gene, a member of the GRAS family of transcriptional regulators, promotes shoot...

Journal: :Genetics and molecular research : GMR 2013
M Riaz J Farooq G Sakhawat A Mahmood M A Sadiq M Yaseen

Research pertaining to genetic variability parameters, heritability, and genotypic, phenotypic, simple, and environmental correlations for various seedling traits in five elite advanced cotton (Gossypium hirsutum L.) lines (FH-113, FH-114, FH-941, FH-942, and FH-2015) and one check (CIM-496) was carried out during October and November 2010 under greenhouse conditions at the Cotton Research Inst...

Journal: :Plant physiology 1992
A J Bloom S S Sukrapanna R L Warner

We examined nitrate assimilation and root gas fluxes in a wild-type barley (Hordeum vulgare L. cv Steptoe), a mutant (nar1a) deficient in NADH nitrate reductase, and a mutant (nar1a;nar7w) deficient in both NADH and NAD(P)H nitrate reductases. Estimates of in vivo nitrate assimilation from excised roots and whole plants indicated that the nar1a mutation influences assimilation only in the shoot...

Journal: :journal of medicinal plants and by-products 0

a laboratory trial was conducted to determine whether suspensions of zno nanoparticles (zno nps) could interfere with the early growth of fenugreek. this plant species is one of the recommended species by organization for economic cooperation and development (oecd). nine concentrations of zno nps (10, 50, 100, 500, 1000, 2000, 3000, 4000, and 5000 mg/l) were prepared in deionized )di( water (co...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1391

simplification universal as a universal feature of translation means translated texts tend to use simpler language than original texts in the same language and it can be critically investigated through common concepts: type/token ratio, lexical density, and mean sentence length. although steps have been taken to test this hypothesis in various text types in different linguistic communities, in ...

Journal: :بوم شناسی کشاورزی 0
جواد شباهنگ سرور خرم دل آسیه سیاهمرگویی رحمت اله قشم لیلا جعفری

in order to study impacts of organic manure levels and inoculation with mycorrhiza fungi on growth, quantitative and qualitative yield of hyssop (hyssopus officinalis l.), a field experiment was conducted as factorial based on a randomized complete block design with three replications at the agricultural research station, ferdowsi university of mashhad, during two growing seasons of 2009-2010 a...

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