Relationships between carbon isotope discrimination, dry matter production, and harvest index in durum wheat

2001 ◽  
Vol 158 (6) ◽  
pp. 723-729 ◽  
Author(s):  
Othmane Merah ◽  
Eliane Deléens ◽  
Philippe Monneveux
Keyword(s):  
Durum Wheat ◽  
Carbon Isotope ◽  
Harvest Index ◽  
Dry Matter ◽  
Carbon Isotope Discrimination ◽  
Dry Matter Production ◽  
Isotope Discrimination ◽  
Matter Production

Dry Matter Production and Rate of Change of Harvest Index at High Temperature in Peanut

Crop Science ◽  
2002 ◽  
Vol 42 (1) ◽  
pp. 146 ◽  
Author(s):  
P. Q. Craufurd ◽  
P. V. Vara Prasad ◽  
R. J. Summerfield
Keyword(s):  
High Temperature ◽  
Harvest Index ◽  
Dry Matter ◽  
Rate Of Change ◽  
Dry Matter Production ◽  
Matter Production

Changes in the hay production and the harvest index of Australian oat varieties

1963 ◽  
Vol 3 (10) ◽  
pp. 198 ◽  
Author(s):  
HJ Sims
Keyword(s):  
Harvest Index ◽  
Dry Matter ◽  
Dry Matter Production ◽  
Standard Variety ◽  
Grain Yields ◽  
Matter Production

The hay and grain yields of oat varieties currently widely grown in Australia have been compared with the old standard variety Algerian. The increased yield of the newer varieties is due almost entirely to increased grain : hay ratios (harvest index) and not to any increase in dry matter production. Only one variety in the study showed a significant improvement in dry matter production and, in this, the grain : hay ratio (harvest index) was not significantly altered.

Transpiration effciency and its relationship with carbon isotope discrimination under well-watered and water-stressed conditions in Stylosanthes scabra

1998 ◽  
Vol 49 (7) ◽  
pp. 1039 ◽  
Author(s):  
Bala R. Thumma ◽  
Bodapati P. Naidu ◽  
Don F. Cameron ◽  
Len M. Bahnisch
Keyword(s):  
Carbon Isotope ◽  
Drought Resistance ◽  
Carbon Isotope Discrimination ◽  
Negative Relationship ◽  
C3 Plants ◽  
Breeding Programs ◽  
Isotope Discrimination ◽  
Matter Production ◽  
Stylosanthes Scabra ◽  
High Degree

Stylosanthes scabra cv. Seca is a widely sown tropical pasture legume in northern Australia and has a high degree of drought resistance. Identification of traits contributing to the drought resistance of Seca may be valuable for use in breeding programs. Transpiration efficiency (TE) has been suggested as one such trait contributing to drought resistance. Carbon isotope discrimination (Δ) has been proposed for estimating TE indirectly in C3 plants. A glasshouse experiment was conducted using 8 accessions of S. scabra to identify whether Seca differs in TE from other accessions of S. scabra and to determine the relationship between TE and Δ under both well-watered and water-stressed treatments. Seca maintained the highest TE (lowest Δ) under both control and stress treatments, and leaf Δ was significantly and negatively correlated with TE under both control and stress conditions. A significant and negative relationship was found between Δ and dry matter production under stress treatment. The interaction between accession and watering treatment was not significant for either TE or Δ. We also found a signirficant agreement between the performance in the field and in the laboratory for these 8 accessions. These results indicate that TE could be one of the significant factors contributing to drought resistance of Seca. Furthermore, Δ and/or specific leaf area may be useful as selection criteria in breeding programs to identify the lines with high TE.

Stability of Carbon Isotope Discrimination and Grain Yield in Durum Wheat

Crop Science ◽  
2001 ◽  
Vol 41 (3) ◽  
pp. 677-681 ◽  
Author(s):  
O. Merah ◽  
E. Deléens ◽  
I. Souyris ◽  
M. Nachit ◽  
P. Monneveux
Keyword(s):  
Grain Yield ◽  
Durum Wheat ◽  
Carbon Isotope ◽  
Carbon Isotope Discrimination ◽  
Isotope Discrimination

scholarly journals Ash content might predict carbon isotope discrimination and grain yield in durum wheat

2001 ◽  
Vol 149 (2) ◽  
pp. 275-282 ◽  
Author(s):  
Othmane Merah ◽  
Eliane Deléens ◽  
Irenée Souyris ◽  
Philippe Monneveux
Keyword(s):  
Grain Yield ◽  
Durum Wheat ◽  
Carbon Isotope ◽  
Carbon Isotope Discrimination ◽  
Ash Content ◽  
Isotope Discrimination

Relationships between carbon isotope discrimination and leaf morphophysiological traits in spring-planted spring wheat under drought and salinity stress in Northern China

2008 ◽  
Vol 59 (10) ◽  
pp. 941 ◽  
Author(s):  
Lin Zhu ◽  
Zong Suo Liang ◽  
Xing Xu ◽  
Shu Hua Li ◽  
Ji Hai Jing ◽  
...  
Keyword(s):  
Grain Yield ◽  
Carbon Isotope ◽  
Harvest Index ◽  
Carbon Isotope Discrimination ◽  
Water Status ◽  
Flag Leaf ◽  
Wheat Yield ◽  
Gas Exchange Parameters ◽  
Isotope Discrimination ◽  
North East

The relationships between carbon isotope discrimination (Δ) and some morphophysiological traits such as specific leaf dry weight (SLDW), gas exchange parameters, and relative water content (RWC) were studied in a collection of 20 bread wheat cultivars (landraces, released cultivars and advanced lines) in three locations of the Ningxia region (North-East China), i.e. Yinchuan (limited irrigation conditions), Huinong (limited irrigation conditions + salinity) and Guyuan (rain-fed conditions). Relationships between Δ, grain yield (GY), and harvest index (HI) and above-ground biomass (AGB) were also analysed. Differences in the measured traits between different locations were highly related to the variation in water availability. Positive correlations were noted between Δ and HI and grain yield. Flag leaf Δ was positively correlated with RWC at anthesis, and negatively associated with SLDW at grain filling. Significant and negative correlations between Δ and dry matter weight per plant at anthesis and biomass at maturity were noted. Leaf temperature (LT) was found to be negatively correlated with Δ and gs. The findings suggest that Δ may be a useful indicator reflecting wheat yield, harvest index, and water status under irrigation and rain-fed conditions in the Ningxia region.

scholarly journals Effect of Ppd-1 photoperiod sensitivity genes on dry matter production and allocation in durum wheat

2018 ◽  
Vol 221 ◽  
pp. 358-367 ◽  
Author(s):  
Conxita Royo ◽  
Karim Ammar ◽  
Christian Alfaro ◽  
Susanne Dreisigacker ◽  
Luis Fernando García del Moral ◽  
...  
Keyword(s):  
Durum Wheat ◽  
Dry Matter ◽  
Photoperiod Sensitivity ◽  
Dry Matter Production ◽  
Matter Production ◽  
Photoperiod Sensitivity Genes
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