scholarly journals Comparison of Growth Characteristics and Physiological Activity of Two Centella asiatica Cultivars in Greenhouse Soil Culture

2021 ◽  
Vol 30 (4) ◽  
pp. 351-358
Author(s):  
Sewon Oh ◽  
Sujeong Park ◽  
Seongho Lee ◽  
Yeonju Park ◽  
Keum-Il Jang ◽  
...  
2018 ◽  
Vol 64 (No. 5) ◽  
pp. 207-215
Author(s):  
Ahmadloo Fatemeh ◽  
Calagari Mohsen ◽  
Salehi Azadeh ◽  
Goodarzi Gholam Reza

In this study, rooting and growth characteristics of different poplar clones from six species including Populus deltoides Bartram ex Marshall clone Lux, Populus nigra subsp. betulifolia (Pursh) W. Wettstein clone 17/13, Populus euramericana (Dode) Guinier clone 561/41, P. deltoides clone Samsun, Populus alba Linnaeus clone 49/9, Populus caspica (Bornmüller) Bornmüller, and Populus euphratica Olivier in hydroponic and soil cultures have been evaluated. In hydroponic culture, poplar cuttings were grown in plastic tanks and in soil culture, poplar cuttings were planted into plastic pots with 12 replications for each clone. The pot experiment was a Complete Randomized Design. Root length, stem diameter, stem height, and root and shoot dry matter of poplar plants were studied in hydroponic culture after 84 days and in soil culture three times at 6, 12, 18 weeks in 2017. In hydroponic culture, the cuttings of P. deltoides Lux and P. nigra betulifolia 17/13, and of P. deltoides Samsun and P. euphratica were among the first and last clones that rooted, respectively. Also, the lowest rate of rooting was observed in P. deltoides Samsun and P. euphratica clones. The highest values of all parameters except root length were obtained in P. euphratica. The highest root length and stem diameter were observed in clones of P. deltoides Lux, P. nigra betulifolia 17/13, P. euramericana 561/41, and P. deltoides Samsun. In soil culture, P. deltoides Lux, P. nigra betulifolia 17/13, and P. alba 49/9 showed the highest percentage of rooting compared to the other clones at the first measurement. All the clones except the clone of P. euphratica reached above 40 cm root length in each of the three measurement periods. The highest stem diameter, stem height, and shoot dry matter were obtained in clone of P. deltoides Lux and root dry matter in clone of P. alba 49/9.


Author(s):  
Tomoko M. Nakanishi

AbstractOur first target was water, namely, how to obtain a water-specific image nondestructively. Using a neutron beam, we could visualize water-specific images of plants, including roots and flowers, which were never shown before. Each image suggested the plant-specific activity related to water.We briefly present how to acquire the image and what kind of water image is taken by neutron beam irradiation. We present a variety of plant samples, such as flowers, seeds, and wood disks. It was noted that neutrons could visualize the roots imbedded in soil without uprooting. When a spatial image of the root imbedded in soil was created from many projection images, the water profile around the root was analyzed. Then, fundamental questions were raised, such as whether plants are absorbing water solution or water vapor from the soil, because there was always a space adjacent to the root surface and hardly any water solution was visualized there. The roots are in constant motion during growth, known as circumnutation, and it is natural that the root tip is always pushing the soil aside to produce space for the root to grow. If the roots are absorbing water vapor, then the next question is about metals. Are the roots absorbing metal vapor? Since we tended to employ water culture to study the physiological activity of plants, the physiological study of the plants growing in soil was somewhat neglected. Later, when we could develop a system to visualize the movement of element absorption in a plant, there was a clear difference in element absorption between water culture and soil culture.


2020 ◽  
Vol 28 (4) ◽  
pp. 254-259
Author(s):  
Jang Nam Choi ◽  
Hee Jung Lee ◽  
Yun Ji Lee ◽  
Jin Tae Jeong ◽  
Jeong Hoon Lee ◽  
...  

2015 ◽  
Vol 1092-1093 ◽  
pp. 613-616
Author(s):  
Chen Lin ◽  
Xiu Li Ge

Heavy metal zinc is one of the trace elements necessary to the growth of vegetable, but Zn excessiveness also could cause damage. In this research, four vegetables were planted by soil culture method under different Zn2+concentration controlled by the exogenous Zn2+addition; their growth characteristics were analyzed to find the sensitive growth indexes to Zn and compare their tolerance to Zn pollution. Results show that: low concentration of Zn2+(< 100 mg/kg) can promote significantly the plant height and the root length growth of all the four vegetables, while, as the exogenous Zn2+increased to the concentration of 150 mg/ kg, the number of leaves, the above-ground dry biomass and the underground dry biomass were suppressed significantly; in this experiment, the four vegetables appeared different sensitivity to Zn stress,Lactucasativavar.longifoliafappeared highest tolerance andBrassicachinensisappeared less sensitivity to Zn stress.


Author(s):  
H. D. Geissinge ◽  
L.D. Rhodes

A recently discovered mouse model (‘mdx’) for muscular dystrophy in man may be of considerable interest, since the disease in ‘mdx’ mice is inherited by the same mode of inheritance (X-linked) as the human Duchenne (DMD) muscular dystrophy. Unlike DMD, which results in a situation in which the continual muscle destruction cannot keep up with abortive regenerative attempts of the musculature, and the sufferers of the disease die early, the disease in ‘mdx’ mice appears to be transient, and the mice do not die as a result of it. In fact, it has been reported that the severely damaged Tibialis anterior (TA) muscles of ‘mdx’ mice seem to display exceptionally good regenerative powers at 4-6 weeks, so much so, that these muscles are able to regenerate spontaneously up to their previous levels of physiological activity.


2006 ◽  
Vol 175 (4S) ◽  
pp. 361-361
Author(s):  
Paul L. Crispen ◽  
Rosalia Viterbo ◽  
Richard E. Greenberg ◽  
David Y.T. Chen ◽  
Robert G. Uzzo

Planta Medica ◽  
2010 ◽  
Vol 76 (12) ◽  
Author(s):  
T Kaensaksiri ◽  
P Soontornchainaksaeng ◽  
N Soonthornchareonnon ◽  
S Prathanturarug
Keyword(s):  

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