Variation among Half-Sib Families and Heritability for Biomass Yield and Other Traits in Lowland Switchgrass (Panicum virgatum L.)

Crop Science ◽  
2010 ◽  
Vol 50 (6) ◽  
pp. 2355-2363 ◽  
Author(s):  
H. S. Bhandari ◽  
M. C. Saha ◽  
P. N. Mascia ◽  
V. A. Fasoula ◽  
J. H. Bouton
Keyword(s):  
Panicum Virgatum ◽  
Biomass Yield ◽  
Panicum Virgatum L ◽  
Sib Families

Variance components and heritability of biomass yield in switchgrass (Panicum virgatum L.) grown in the Southern Great Plains

2014 ◽  
Vol 168 ◽  
pp. 148-155 ◽  
Author(s):  
Qingzhen Jiang ◽  
Stephen L. Webb ◽  
Charles R. Yesudas ◽  
Hem S. Bhandari ◽  
Brindha Narasimhamoorthy ◽  
...  
Keyword(s):  
Great Plains ◽  
Variance Components ◽  
Panicum Virgatum ◽  
Biomass Yield ◽  
Southern Great Plains ◽  
Panicum Virgatum L

scholarly journals Impact of Growing Environment on Anthracnose Severity of Switchgrass Cultivars and Clones

Plant Disease ◽  
2016 ◽  
Vol 100 (10) ◽  
pp. 2034-2042
Author(s):  
Lindsey Hoffman ◽  
Laura M. Chaves ◽  
Eric N. Weibel ◽  
Hilary S. Mayton ◽  
Stacy A. Bonos
Keyword(s):  
Panicum Virgatum ◽  
Biomass Yield ◽  
Limited Information ◽  
Panicum Virgatum L ◽  
Growing Environment ◽  
Selection For ◽  
The Impact ◽  
Clonal Repeatability ◽  
Plant Basis ◽  
Marginal Soil

Anthracnose (caused by Colletotrichum navitas) has the potential to significantly reduce biomass yield of switchgrass (Panicum virgatum L.); however, limited information is available on the impact of growing environment on tolerance of switchgrass to anthracnose. Therefore, the major objectives of this study were to (i) examine genotype–environment (G × E) effects on anthracnose severity in populations of switchgrass cultivars and individual genotypes and (ii) determine clonal repeatability estimates and stability analysis of anthracnose tolerance on individual switchgrass genotypes. Two experiments were conducted at one prime and two marginal soil locations in New Jersey. In all, 14 switchgrass cultivars were established from seed in 2008 for experiment 1 and 50 replicated switchgrass clones were planted in 2009 for experiment 2 at all three locations. Anthracnose was rated visually in 2010 for experiment 1 and in 2010 and 2011 for experiment 2. Significant G × E interactions were detected for both experiments (P ≤ 0.05) and anthracnose severity varied by location and cultivar. Clonal repeatability estimates for disease tolerance among clones was 0.78 on a clonal basis and 0.32 on a single-plant basis. Lowland ecotypes exhibited less disease overall than upland ecotypes. Results from this study indicate that selection for improved tolerance to anthracnose should be conducted after evaluation across several environments over multiple years.

Estimation of Genetic Parameters for Biomass Yield in Lowland Switchgrass (Panicum virgatum L.)

Crop Science ◽  
2011 ◽  
Vol 51 (4) ◽  
pp. 1525-1533 ◽  
Author(s):  
H. S. Bhandari ◽  
M. C. Saha ◽  
V. A. Fasoula ◽  
J. H. Bouton
Keyword(s):  
Panicum Virgatum ◽  
Genetic Parameters ◽  
Biomass Yield ◽  
Panicum Virgatum L ◽  
Estimation Of Genetic Parameters

scholarly journals Overexpression of an aquaporin gene PvPIP2;9 increased biomass yield and protein content, improved drought tolerance and water use efficiency and affected other PIP2 genes’ expression in switchgrass (Panicum virgatum L.)

2020 ◽  
Author(s):  
Jing Zhang ◽  
Wuwu Wen ◽  
Hui Li ◽  
Qiyu Lu ◽  
Bin Xu ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Water Use Efficiency ◽  
Water Use ◽  
Panicum Virgatum ◽  
Biomass Yield ◽  
Drought Treatment ◽  
Water Transportation ◽  
Panicum Virgatum L ◽  
Aquaporin Gene ◽  
Use Efficiency

Abstract Background: Switchgrass ( Panicum virgatum L.) is a prime candidate for non-grain-based bioenergy feedstock production. Improved drought tolerance and higher water use efficiency are important for its successful field establishment and production, especially on marginal lands. Aquaporins are key channels and regulators for water transportation and maintenance of cellular water status. In this study, the functional role of an aquaporin gene, PvPIP2;9 , in switchgrass was studied. Results: Expression of PvPIP2;9 was regulated by diurnal oscillation and osmotic stress. Constitutive over-expressing PvPIP2;9 in switchgrass significantly improved its leaf length, plant height, above-ground biomass, biomass protein contents, and cellulose contents in stressed plants. Under 21 days of drought treatment, transgenic plants showed less electrolyte leakage rates, but higher relative water contents, photochemical efficiencies, and chlorophyll contents, indicating that PvPIP2;9 positively regulated plant drought tolerance and water use efficiency. Moreover, expression patterns of all 14 switchgrass PIP2 subfamily genes were checked during the drought treatment, and the result showed that over-expressing PvPIP2;9 also affected transcript levels of most other PIP2 genes. Conclusions: Together, this study showed that improved biomass yield, drought tolerance and higher water use efficiency can be achieved by manipulating the expression level of PvPIP2;9 and also suggested PIP2 subfamily genes were transcriptionally regulated in a coordinated manner.

ADP-ribosylation factors improve biomass yield and salinity tolerance in transgenic switchgrass (Panicum virgatum L.)

2020 ◽  
Vol 39 (12) ◽  
pp. 1623-1638 ◽  
Author(s):  
Cong Guan ◽  
Xue Li ◽  
Dan-Yang Tian ◽  
Hua-Yue Liu ◽  
Hui-Fang Cen ◽  
...  
Keyword(s):  
Salinity Tolerance ◽  
Panicum Virgatum ◽  
Biomass Yield ◽  
Adp Ribosylation ◽  
Panicum Virgatum L

scholarly journals Productivity of switchgrass (Panicum virgatum L.) agrophytocenoses for long-term use

2021 ◽  
Author(s):  
S. M. Mandrovska
Keyword(s):  
Panicum Virgatum ◽  
Biomass Yield ◽  
Control Treatment ◽  
Energy Yield ◽  
Energy Equivalent ◽  
Panicum Virgatum L ◽  
Solid Biofuel ◽  
Experimental Treatments ◽  
The Cost

Purpose. To determene the productivity of switchgrass (Panicum virgatum L.) agrophytocenoses under the long-term use. Methods. Field, statistical, calculation and comparative. Results. During long-term switchgrass cultivation, the lowest yield was obtained in the first vegetation year: 19.7 t/ha in the control treatment, 25.3 and 17.5 t/ha in the experimental treatments. The average raw biomass yield was as following: 30.3 t/ha in the control (variety ‘Cave-in-Rock’), 32.6 t/ha and 26.5 t/ha in the experimental treatments (varieties ‘Kanlow’ and ‘Morozko’, respectively). The yield of solid biofuel (17.3 t/ha) indicates the advantage of ‘Kanlow’ over the control (11.7 t/ha). The lowest yield (15.7 t/ha) was obtained from ‘Morozko’ variety. The energy yield over the treatments: 312.8 GJ/ha in the control, 397.5 and 367.2 GJ/ha in the experimental treatments, respectively. The cost of the grown production was as following: 416.03 UAH/t in the control (‘Cave-in-Rock’), 312.01 UAH/t in ‘Kanlow’, and 366.42 UAH/t in ‘Morozko’. The profitability of the control (‘Cave-in-Rock’) was 69.5%, ‘Kanlow’ – 101.4%, ‘Morozko’ – 66.8%. Economic evaluation of the productivity of switchgrass agrophytocenoses resulted in the following ranking: ‘Kanlow’, ‘Cave-in-Rock’, ‘Morozko’. When analyzing the energy equivalent of switchgrass biomass production and energy consumption, it was found that ‘Kanlow’ yielded 588.8 GJ/ha and the control – 468.3 GJ/ha, which is lower by 120.5 GJ/ha. Conclusions. The yield of switchgrass agrophytocenoses on average over the years of research (2014–2019) was 30.3 t/ha in ‘Cave-in-Rock’ (the control), 32.6 t/ha in ‘Kanlow’, and 26.5 t/ha in ‘Morozko’. The energy equivalent of the obtained yield was 468.3 GJ/ha in ‘Cave-in-Rock’ and 588.8 GJ/ha in ‘Kanlow’, which is by 120.5 GJ/ha higher than in the control.

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