High resolution in situ rhizosphere imaging of root growth dynamics in oilseed castor plant (Ricinus communis L.) using digital scanners

2018 ◽  
Vol 5 (3) ◽  
pp. 781-792 ◽  
Author(s):  
Kamrun Nahar ◽  
W. L. Pan
Keyword(s):  
High Resolution ◽  
Root Growth ◽  
Ricinus Communis ◽  
Growth Dynamics ◽  
Ricinus Communis L ◽  
Castor Plant

Genetic variability for root morph-architecture traits and root growth dynamics as related to phosphorus efficiency in soybean

2010 ◽  
Vol 37 (4) ◽  
pp. 304 ◽  
Author(s):  
Junhua Ao ◽  
Jiabing Fu ◽  
Jiang Tian ◽  
Xiaolong Yan ◽  
Hong Liao
Keyword(s):  
Genetic Variability ◽  
Root Growth ◽  
Recombinant Inbred Lines ◽  
Growth Dynamics ◽  
Root Traits ◽  
Phosphorus Efficiency ◽  
P Efficiency ◽  
Glycine Max L ◽  
Positive Correlations

Root morphology and architecture are believed to be important for plant phosphorus (P) efficiency, but their genetic information is relatively scarce. In the present study, a field and a specially designed minirhizotron experiments were conducted using two soybean (Glycine max L. Merr.) genotypes and their 88 recombinant inbred lines (RILs) to elucidate the genetic variability for root morph-architecture traits and root growth dynamics as related to P efficiency in soybean. The results indicated that the root morph-architecture traits were continually segregated in the RILs with a normal distribution, indicating which are possibly controlled by quantitative trait loci. Significantly positive correlations were found between root and P traits, suggesting feasibility of screening P efficient genotype through simple selection of root traits in field. Most root morph-architecture traits were closely correlated, showing a coordinating contribution to P efficiency. Furthermore, root morphological traits always had higher heritability than architecture traits, thus, could serve as more reliable index in field selection. The dynamic parameters of root growth from the minirhizotron experiment showed that the P efficient genotype established longer and larger root system with preferring distribution in surface layer and also kept more active roots, therefore, had a better growth performance in field, than the P-inefficient genotype. Taken together, this is the first report on in situ root growth dynamics and its relation to P efficiency using minirhizotron systems in crops. Our findings help to better understand the relationships between P efficiency and root traits and, thus, facilitate development of P efficient genotypes in crops.

scholarly journals Assessment of seed oil yield and characteristics of ten castor plant (Ricinus communis L.) Accessions in Ogbomoso, Nigeria

2019 ◽  
Vol 10 (2) ◽  
pp. 23-28
Author(s):  
W. A. Raheem ◽  
B. A. Lawal ◽  
W.B. Akanbi ◽  
A. M. Ojo
Keyword(s):  
Seed Oil ◽  
Ricinus Communis ◽  
Oil Yield ◽  
Ricinus Communis L ◽  
Castor Plant

scholarly journals Effect of supplemental Ca2+ on NaCl-stressed castor plants (Ricinus communis L.)

2012 ◽  
Vol 71 (1) ◽  
pp. 13-29 ◽  
Author(s):  
Seema Joshi ◽  
Neha Patel ◽  
Indu Pandey ◽  
Amar Pandey
Keyword(s):  
Seed Germination ◽  
Plant Growth ◽  
Critical Level ◽  
Saline Soil ◽  
Ricinus Communis ◽  
Plant Tissues ◽  
Beneficial Effects ◽  
Ricinus Communis L ◽  
Castor Plant ◽  
Level 1

Effect of supplemental Ca2+on NaCl-stressed castor plants (Ricinus communisL.)Greenhouse experiments were conducted to assess the effects of supplemental Ca2+in salinised soil on germination and plant growth response of castor plant (Ricinus communisL. Var. Avani-31, Euphorbiaceae). NaCl amounting to 390 g was thoroughly mixed with soil of seven lots, of 100 kg each, to give electrical conductivity of 4.1 dS m-1. Further, Ca(NO3)2x 4H20 to the quantity of 97.5, 195, 292.5, 390, 487.5, and 585 g was separately mixed with soil of six lots to give 1:0.25, 1:0.50, 1:0.75, 1:1, 1:1.25, and 1:1.50 Na+/Ca2+ratios, respectively. The soil of the seventh lot contained only NaCl and its Na+/Ca2+ratio was 1:0. Soil without addition of NaCl and Ca (NO3)2x 4H20 served as control, with a 0:0 Na+/Ca2+ratio. Salinity significantly retarded seed germination and plant growth, but the deleterious effects of NaCl on seed germination were ameliorated and plant growth was restored with Ca2+supply at the critical level (1:0.25 Na+/Ca2+ratio) to salinised soil. Supply of Ca2+above the critical level further retarded seed germination and plant growth due to the increased soil salinity. Salt stress reduced N, P, K+and Ca2+content in plant tissues, but these nutrients were restored by addition of Ca2+at the critical level to saline soil. In contrast, Na+content in plant tissues significantly increased in response to salinity, but significantly decreased with increasing Ca2+supply to saline soil. The results are discussed in terms of the beneficial effects of Ca2+supply on the plant growth ofRicinus communisgrown under saline conditions.

scholarly journals New Rootsnap Sensor Reveals the Ameliorating Effect of Biochar on In Situ Root Growth Dynamics of Maize in Sandy Soil

2020 ◽  
Vol 11 ◽  
Author(s):  
Fauziatu Ahmed ◽  
Emmanuel Arthur ◽  
Hui Liu ◽  
Mathias Neumann Andersen
Keyword(s):  
Root Growth ◽  
Sandy Soil ◽  
Growth Dynamics

Description of 90 inbred lines of castor plant (Ricinus communis L.)

Euphytica ◽  
2014 ◽  
Vol 202 (1) ◽  
pp. 13-33 ◽  
Author(s):  
Marco Baldanzi ◽  
Mirina Luiza Myczkowski ◽  
Mariangela Salvini ◽  
Mario Macchia
Keyword(s):  
Ricinus Communis ◽  
Inbred Lines ◽  
Ricinus Communis L ◽  
Castor Plant

2S albumin gene expression in castor plant (Ricinus communis L.)

2004 ◽  
Vol 81 (9) ◽  
pp. 867-872 ◽  
Author(s):  
Grace Q. Chen ◽  
Xiaohua He ◽  
Lucy P. Liao ◽  
Thomas A. McKeon
Keyword(s):  
Gene Expression ◽  
Ricinus Communis ◽  
2S Albumin ◽  
Albumin Gene ◽  
Ricinus Communis L ◽  
Castor Plant

scholarly journals Recovery of an Early Evidence of Castor Plant, Ricinus Communis L. from the Central Sudan and its Positioning within a World-wide Context

2014 ◽  
Vol 5 (2) ◽  
pp. 45
Author(s):  
Anwar A-Magid
Keyword(s):  
Material Culture ◽  
Ricinus Communis ◽  
Archaeological Site ◽  
Tropical Africa ◽  
Central Sudan ◽  
Modest Contribution ◽  
Ricinus Communis L ◽  
The World ◽  
Ancient Times ◽  
Castor Plant

Evidence of castor plant R. communis, L. is recovered from the Early Holocene archaeological site of Kabbashi Haitah in the Central Sudan and dated to c. 7700 - 7200 bp. This evidence represents the earliest botanical evidence recovered –so far- from the Central Sudan and elsewhere in Eastern Tropical Africa and the World. No evidence is found in the material culture remains which might indicate the likelihood of its being imported. Most of the ancient and traditional utilizations of castor plant are strikingly similar despite their being practised at different times in different and far apart regions in the World. This modest contribution stands to show that the wide spread and utilizations of castor plant strongly accentuate its significant and indispensable role since ancient times. It also reflects that inedible plants, as seen in the case of castor plant, were (and still are) not less important than food plant, hence stresses the need for attending to their study in a fashion equal to that of studying foodplants since prehistoric and early historic times. 

scholarly journals Root Dynamics of Apple Rootstocks in a Replanted Orchard

HortScience ◽  
2006 ◽  
Vol 41 (5) ◽  
pp. 1149-1155 ◽  
Author(s):  
Shengrui Yao ◽  
Ian A. Merwin ◽  
Michael G. Brown
Keyword(s):  
Root Growth ◽  
Growth Dynamics ◽  
Tree Planting ◽  
Growth And Yield ◽  
Root Dynamics ◽  
Apple Rootstocks ◽  
Root Characteristics ◽  
Apple Replant Disease ◽  
Compost Amendment

Root observations in situ with a rhizotron camera enabled us to compare the performance of apple (Malus ×domestica Borkh.) trees on 3 rootstock clones planted in a New York orchard with a history of apple replant disease. Visual observations were conducted in situ at monthly intervals during 2 growing seasons through minirhizotron tubes for trees grafted onto 3 rootstocks: M.7 (M.7), Geneva 30 (G.30), and Cornell-Geneva 6210 (CG.6210). There were 3 preplant soil treatments (fumigation, compost amendment, and untreated checks) and 2 tree planting positions (within the old tree rows or in the old grass lanes of the previous orchard at this site). Preplant soil treatments and old-row versus grass-lane tree planting positions had no apparent influence on root systems, whereas rootstock clones substantially influenced root growth and demography. New root emergence was suppressed during the first fruit-bearing year (2004) on all 3 rootstock clones compared with the previous nonbearing year (2003). A root-growth peak in early July accounted for more than 50% of all new roots in 2003, but there was no midsummer root-growth peak in 2004. The median lifespan for roots of CG.6210 was twice that of G.30 and M.7 in 2004. Also, CG.6210 had more roots below 30 cm depth, whereas M.7 had more roots from 11 to 20 cm depth. Trees on CG.6210 were bigger, yielded more fruit, and had the highest yield efficiency in the third year after planting compared with trees on G.30 and M.7 rootstocks. Crop load appeared to inhibit new root development and changed root-growth dynamics during the first bearing year, with a resurgence in new root growth after fruit was harvested in October 2004. Rootstock genotype was the dominant influence on root lifespan and distribution in this study, whereas preplant soil fumigation, compost amendments, and replanting positions had little apparent impact on root characteristics despite their influence on above-ground tree growth and yield.

scholarly journals New Anthocyanins from Stem Bark of Castor, Ricinus Communis

2008 ◽  
Vol 3 (9) ◽  
pp. 1934578X0800300 ◽  
Author(s):  
Robert Byamukama ◽  
Monica Jordheim ◽  
Bernard Kiremire ◽  
Øyvind M. Andersen
Keyword(s):  
Mass Spectrometry ◽  
Nuclear Magnetic Resonance ◽  
Electrospray Mass Spectrometry ◽  
Ricinus Communis ◽  
Stem Bark ◽  
Resonance Spectroscopy ◽  
Chromatographic Techniques ◽  
Ricinus Communis L ◽  
Castor Plant ◽  
And Storage

Two new anthocyanins (1, 2) were isolated from the stem bark of the castor plant, Ricinus communis L. by a combination of chromatographic techniques. The structures of the compounds were elucidated, mainly by nuclear magnetic resonance spectroscopy and high-resolution electrospray mass spectrometry, to be cyanidin 3- O-β-xylopyranoside-5- O-β-glucopyranoside (1) (21%), and cyanidin 3- O-β-xylopyranoside-5- O-(6′”- O-malonyl-β-glucopyranoside) (2) (79%). In addition, cyanidin 3- O-β-xylopyranoside-5- O-(6′”- O-methylmalonate-β-glucopyranoside) (3), formed by methyl esterification of the malonyl unit of 2 during isolation and storage, was identified.

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