scholarly journals Earliness, spike productivity and protein content in European winter wheat landraces and obsolete cultivars

2011 ◽  
Vol 49 (No. 2) ◽  
pp. 67-74 ◽  
Author(s):  
L. Dotlačil ◽  
J. Hermuth ◽  
Z. Stehno
Keyword(s):  
Winter Wheat ◽  
Protein Content ◽  
Crude Protein ◽  
Grain Filling ◽  
Grain Weight ◽  
Crude Protein Content ◽  
European Winter Wheat ◽  
Wheat Landraces ◽  
Grain Filling Period ◽  
Obsolete Cultivars

European winter wheat landraces and obsolete cultivars (121 accessions in set I and 101 accessions in set II) with modern check cultivars were evaluated in three-year field trials. Increased spike productivity in modern cultivars could be attributed mainly to increased number of grains in spikelet and increased HI, whereas TGW has marginal effect. Old cultivars had on average by 2–3% higher crude protein content in grain than modern ones. Among selected 10 characters, relatively wide diversity (C.V. 11–20%) has been estimated in spike length and characters of spike productivity (except of grain weight with C.V. close to 9%). It was difficult to distinguish the cultivars according to the country of origin, however, earliness and lower spike productivity seems to be characteristic for South-East origin whereas cultivars from North-West Europe showed opposite characters. Correlation analyses showed close relations between earliness in heading and in maturity and negative relation between late heading and grain filling period, which was positively correlated with TGW and HI (r = 0.26 to 0.38). Number of grains in spikelets was highly correlated with spike productivity and HI (r = 0.62 to 0.69) whereas relations between these two characters and TGW were lower (r = 0.20 to 0.51). Spike productivity characters, except of TGW, are in negative correlation with crude protein content in grain (r = –0.34 to –0.50). Regression analyses confirmed that main determining character for the spike productivity is number of kernels in spikelet (about 40% of variation) while effects of TGW are about half-size. Crude protein content was positively affected by plant height (15–30% of variation) impact of grain weight per spike was lower (14–17% of variation) and negative. Potentially valuable donors of earliness and longer grain filling period were identified for further studies and/or utilization in breeding programs. As especially valuable character can be considered very high crude protein content (around 18% in cvs Berg-land, Ukrajinka, Sippbachzeller, Innichen Nr. 25001 and Barbu du Finistre). High crude protein content combined with relatively good spike productivity and/or long grain filling period or earliness was found in cvs Visperterminen 640 E, Hatvan, Szekacz 1242, Berchtesgardener Vogel, Ble du Lot and Barbu du Finistere.

scholarly journals How can wheat landraces contribute to present breeding?

2010 ◽  
Vol 46 (Special Issue) ◽  
pp. S70-S74 ◽  
Author(s):  
L. Dotlačil ◽  
J. Hermuth ◽  
Z. Stehno ◽  
V. Dvořáček ◽  
J. Bradová ◽  
...  
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Field Experiments ◽  
Quality Characteristics ◽  
Crude Protein Content ◽  
Thousand Grain Weight ◽  
Selected Lines ◽  
The Mean ◽  
Wheat Landraces ◽  
Obsolete Cultivars

Two sets of winter wheat landraces and obsolete cultivars were studied in three-year field experiments, and compared with 3 modern control cultivars. The higher spike productivity in modern cultivars could mainly be attributed to an increased number of grains in a spikelet and harvest index (HI), whereas thousand grain weight (TGW) has only a slight effect. Landraces and old cultivars proved to have a higher content of crude protein. Spike productivity characteristics, except for TGW, showed a negative correlation with the crude protein content in the grain. The number of kernels in a spikelet strongly affected the spike’s productivity, whereas the TGW has only half the effect. The mean yield of four modern cultivars was 51% higher than the mean yield of 31 landraces and obsolete cultivars. Regression analysis proved the much stronger response of modern cultivars to environment (<I>b </I>= 1.63), then was the response of old cultivars (<I>b </I>= 0.87). Different responses to environments were found within the set of 31 landraces, as well. We could also identify potentially valuable donors of earliness and winter hardiness among the old cultivars. High crude protein content (up to 18%), and other valuable quality characteristics, were rather frequent. In both sets, HMW <I>Glu</I>-subunits were described, and we have additionally studied 67 selected lines. Among them, 10 lines showed the crude protein content of 17.5% to 18.3% (where the gluten index and Zeleny test varied from 28.5 to 54.0 and 36.8 to 61.7, respectively). High values of all quality characteristics showed lines gained from the cultivars Mindeszentpusztai (HUN), Szekacz 19 (HUN), Bartweizen linie a (AUT), Viglašská červenoklasá (CZE), as well as some others.

Features of the technology of cultivation of corn and forage sorgo in crop crops in the Xinjiang Region of People's Republic of China

2020 ◽  
Author(s):  
Z. Abudjaba Z. ◽  
◽  
M.A. Mazirov M.A. ◽  
N.S. Matyuk N.S. ◽  
I. Akbar I.
Keyword(s):  
Winter Wheat ◽  
Protein Content ◽  
Crude Protein ◽  
Unit Area ◽  
Agricultural Crops ◽  
Crude Protein Content ◽  
Republic Of China ◽  
Sorghum Variety ◽  
Maize Variety ◽  
Silage Quality

The article compares and analyzes the productivity and composition of nutrients of two different agricultural crops of corn variety Sinyu No. 29 and fodder sorghum Jinmu No. 1, cultivated in stubble crops after winter wheat using the same technology. sorghum Jinmu No. 1 has the property of regrowing after the first mowing, which allows you to harvest two crops and increase the overall yield per unit area. The harvest of green mass of fodder sorghum variety Jinmu No. 1 was 120.9% higher than that of maize variety Sinyu No. 29 and amounted to 169762.78 kg / ha and 78277.87 kg / ha, respectively. Similarly, compared to Sinu No. 29 maize, Jinmu No. 1 fodder sorghum has a higher yield, higher crude protein content, higher crude ash and higher water content, which means better silage quality. basis for the promotion and use of fodder sorghum．

Early productivity and crude protein content of establishing forage swards composed of combinations of native grass and legume species in mixed-grassland ecoregions

2013 ◽  
Vol 93 (3) ◽  
pp. 445-454 ◽  
Author(s):  
Jenalee M. Mischkolz ◽  
Michael P. Schellenberg ◽  
Eric G. Lamb
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Plant Density ◽  
Warm Season ◽  
Forage Yield ◽  
Schizachyrium Scoparium ◽  
Legume Species ◽  
Crude Protein Content ◽  
Native Grass ◽  
Western Wheatgrass

Mischkolz, J. M., Schellenberg, M. P. and Lamb, E. G. 2013. Early productivity and crude protein content of establishing forage swards composed of combinations of native grass and legume species in mixed-grassland ecoregions. Can. J. Plant Sci. 93: 445–454. We evaluated the early establishment productivity of forage swards of native, perennial, cool and warm season grasses, and legumes as they have the potential to provide non-invasive, productive, and drought resistant rangelands. Seven species with agronomic potential and a broad native geographic distribution were selected for testing including: nodding brome [Bromus anomalus (Coult.)], blue bunch wheatgrass [Pseudoregneria spicata (Pursh)], western wheatgrass [Pascopyrum smithii (Rydb.)], side oats grama [Bouteloua curtipendula (Michx.)], little blue stem [Schizachyrium scoparium (Michx.)], purple prairie clover [Dalea purpurea (Vent.)], and white prairie clover [Dalea candida (Willd.)]. Forage swards, including all seven monocultures, 21 two-species mixtures and a mixture with all species, were planted in two sites, Saskatoon and Swift Current, Saskatchewan. Western wheatgrass (WWG) had the highest overall plant density and the strongest effect on the forage yield of the forage swards; however, productivity and crude protein content were not reduced when other species were also included in the forage sward. Dalea spp. did not establish as well as the other species, but had the highest crude protein concentrations. This work provides insight into forage sward development at the establishment stage; additional work is required to determine long-term species impacts for well established forage swards.

99 Relationship between crude protein content and larval growth in Tenebrio molitor

2021 ◽  
Vol 12 (1) ◽  
pp. 78
Author(s):  
Kerensa Hawkey ◽  
Jon Stubberfield ◽  
Tim Parr ◽  
John Brameld ◽  
Andrew Salter
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Larval Growth ◽  
Tenebrio Molitor ◽  
Crude Protein Content
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