Analysis of Photosynthesis and Biomass Allocation for Simulation of Edible and Inedible Biomass Production and Gas Exchange of Main Crops within Ceef

2002 ◽  
Author(s):  
Yasuhiro Tako ◽  
Ryuji Arai ◽  
Keiji Nitta
Keyword(s):  
Gas Exchange ◽  
Biomass Production ◽  
Biomass Allocation

scholarly journals Biomass production and leaf gas exchange of perennial legumes associated with bananas

2016 ◽  
Vol 11 (6) ◽  
pp. 487-493
Author(s):  
Edineide Lima Barbosa Francisca ◽  
Feitosa De Lacerda Claudivan ◽  
De Oliveira Feitosa Hernandes ◽  
Jardelson Ferreira Francisco ◽  
Vieira Amorim Aiala ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Biomass Production ◽  
Leaf Gas Exchange ◽  
Perennial Legumes

Gas exchange and growth of bald cypress seedlings from selected U.S. Gulf Coast populations: responses to elevated salinities

1995 ◽  
Vol 25 (9) ◽  
pp. 1409-1415 ◽  
Author(s):  
S.R. Pezeshki ◽  
R.D. Delaune ◽  
H.S. Choi
Keyword(s):  
Gas Exchange ◽  
Biomass Production ◽  
Growth Traits ◽  
Gulf Coast ◽  
Net Photosynthesis ◽  
Salinity Treatment ◽  
Root Porosity ◽  
Bald Cypress ◽  
Freshwater Source ◽  
Freshwater Population

Bald cypress (Taxodiumdistichum (L.) Rich.) seedlings from two sources in Louisiana were tested for a possible difference in salt tolerance. The study was conducted in rhizotrons under controlled environmental-conditions. Seedlings were subjected to a control (no flood or salt) and three combinations of flooding salinity: flooding only, flooding plus 68 mol•m−3 salt (4 ppt), and flooding plus 136 mol•m−3 salt (8 ppt). Both populations survived the flooding and salinity treatments for the duration of the study. However, gas exchange and net biomass production were reduced in both populations as salinity of floodwater increased from 0 to 136 mol•m−3. The gas exchange and biomass data indicated that plants from the freshwater source had higher growth rates than the brackish plants. This superiority was also maintained under all the treatments except the highest salinity treatment. Significantly greater net photosynthetic capacity per unit area of leaf was found for the freshwater population than for the brackish population in 68 mol•m−3 salt. In addition, greater root porosity, height growth, and biomass production (shoot, root) were found for the freshwater population than for the brackish population under different treatments. The data indicate that there is a potential for population differentiation in bald cypress, as shown primarily by differences in growth traits. However, the data do not support the hypothesis that bald cypress plants from the brackish source have a capacity to survive and grow better in saltwater than plants from the freshwater source. In fact, combined flooding and salinity treatments resulted in significant reductions in net photosynthesis as compared with the control in both sources.

scholarly journals Growth and Photosynthetic Responses of Three Lycoris Species to Levels of Irradiance

HortScience ◽  
2008 ◽  
Vol 43 (1) ◽  
pp. 134-137 ◽  
Author(s):  
Panpan Meng ◽  
Ying Ge ◽  
Qianjin Cao ◽  
Jie Chang ◽  
Peng Pan ◽  
...  
Keyword(s):  
Biomass Production ◽  
Biomass Allocation ◽  
Growth Traits ◽  
Net Photosynthesis ◽  
Experimental Period ◽  
High Irradiance ◽  
Cut Flowers ◽  
Full Sunlight ◽  
Green Leaves ◽  
Photosynthetic Responses

Lycoris species have appealing characteristics for potting plants, cut flowers, and landscaping decorations, including attractive foliage, which is very similar to that of cymbidium. Lycoris species have been extensively propagated and marketed in Asia. Understanding the response of Lycoris spp. to irradiance intensity will help the horticultural industry improve the production of potting plants of those species. We studied the responses of photosynthesis, growth, and biomass allocation of potted Lycoris spp. (L. chinensis, L. longituba, and L. sprengeri) bulbs grown under three levels of irradiance, i.e., 100%, 70%, and 30% full sunlight. We found that in terms of biomass production L. chinensis can be cultivated under all levels of irradiance studied from full to 30% sunlight. For L. longituba, high irradiance levels increased the rate of net photosynthesis. For both L. chinensis and L. longituba, the full sunlight treatment produced the most attractive plants characterized by shorter, wider, and darker green leaves, features that appeal to consumers. However, none of the growth traits of L. sprengeri were affected by the irradiance treatment over the entire experimental period. It can be concluded that potting plants of L. chinensis and L. longituba are best produced under full sunlight, whereas L. sprengeri can be produced under irradiance levels from 30% to full sunlight.

Effects of water stress on leaf gas exchange and biomass allocation of Populus×popularis ‘35-44’ cuttings

2020 ◽  
Vol 40 (5) ◽  
Author(s):  
赵瑜琦 ZHAO Yuqi ◽  
高苗琴 GAO Miaoqin ◽  
李涛 LI Tao ◽  
王卫锋 WANG Weifeng
Keyword(s):  
Water Stress ◽  
Gas Exchange ◽  
Biomass Allocation ◽  
Leaf Gas Exchange ◽  
Populus Popularis

scholarly journals Mitigating the Effects of Salinity by Foliar Application of Salicylic Acid in Fenugreek

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Sumaira Babar ◽  
Ejaz Hussain Siddiqi ◽  
Iqbal Hussain ◽  
Khizar Hayat Bhatti ◽  
Rizwan Rasheed
Keyword(s):  
Salicylic Acid ◽  
Gas Exchange ◽  
Growth Medium ◽  
Biomass Production ◽  
Foliar Application ◽  
Harmful Effect ◽  
Research Work ◽  
Assimilation Rate ◽  
Fresh Weight ◽  
Chlorophyll Contents

Present research work was conducted to alleviate the salinity-induced harmful effect on biomass production and physiochemical attributes of fenugreek by foliar application of salicylic acid. Two varieties (Deli Kabul and Kasuri) were grown in salt treated (100 mM NaCl) and untreated (0 mM NaCl) growth medium. Two levels of salicylic acid (0 mg L−1 and 100 mg L−1) were applied through foliar method. Salinity stress significantly reduced the growth biomass in both varieties. Higher shoot fresh weight was recorded in Deli Kabul, while lower in Kasuri. Such reduction in growth biomass was mitigated by the foliar application of SA in both plants. Salinity caused a marked reduction in gas exchange attributes including net CO2 assimilation rate, transpiration rate, stomatal conductance, and substomatal CO2 concentration. Exogenous applied salicylic acid also overcomes the reduction in gas exchange attributes of the plants. The varieties “Deli Kabul” and “Kasuri” showed higher and lower net CO2 assimilation rate, respectively. These results indicate that growth medium salinity induced reduction in biomass production, gas exchange attributes, and also chlorophyll contents whereas the application of SA through foliar method can be used to protect plant growth and improve these attributes under salt stress.

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