EFFECT OF THE SPECIFIC WEIGHT OF SEEDS FROM DIFFERENT PLANTING DATES ON GROWTH AND YIELD OF FOUR CULTIVARS OF BARLEY (HORDEUM VULGARE L.)

Soil salinity can severely reduce crop growth and yield. Many studies have investigated salinity tolerance mechanisms in cereals using phenotypes that are relatively easy to measure. The majority of these studies measured the accumulation of shoot Na+ and the effect this has on plant growth. However, plant growth is reduced immediately after exposure to NaCl before Na+ accumulates to toxic concentrations in the shoot. In this study, nondestructive and destructive measurements are used to evaluate the responses of 24 predominately Australian barley (Hordeum vulgare L.) lines at 0, 150 and 250 mM NaCl. Considerable variation for shoot tolerance mechanisms not related to ion toxicity (shoot ion-independent tolerance) was found, with some lines being able to maintain substantial growth rates under salt stress, whereas others stopped growing. Hordeum vulgare spp. spontaneum accessions and barley landraces predominantly had the best shoot ion independent tolerance, although two commercial cultivars, Fathom and Skiff, also had high tolerance. The tolerance of cv. Fathom may be caused by a recent introgression from H. vulgare L. spp. spontaneum. This study shows that the most salt-tolerant barley lines are those that contain both shoot ion-independent tolerance and the ability to exclude Na+ from the shoot (and thus maintain high K+ : Na+ ratios).

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An investigation into the effect of soil compaction and tillage on plant growth and yield of winter barley(Hordeum vulgare L.)

10.13031/aim.20162461725 ◽

2016 ◽

Keyword(s):

Hordeum Vulgare ◽

Plant Growth ◽

Soil Compaction ◽

Winter Barley ◽

Growth And Yield ◽

Hordeum Vulgare L

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Foliar Application of Boron Improves the Growth and Yield in Barley (Hordeum Vulgare L.)

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Food Science and Technology ◽

10.15835/buasvmcn-fst:2021.0013 ◽

2021 ◽

Vol 78 (2) ◽

pp. 11

Author(s):

Shafiq AHMAD ◽

Taqi RAZA ◽

Shakeel IMRAN ◽

Neal S. EASH ◽

Nawab KHAN ◽

...

Keyword(s):

Hordeum Vulgare ◽

Foliar Application ◽

Growth Traits ◽

Crop Productivity ◽

Growth And Yield ◽

Yield Reduction ◽

Hordeum Vulgare L ◽

Biological Yield ◽

Seed Index ◽

The Impact

Crop productivity is limited by several environmental constraints. Among these, micronutrients availability to plants plays a key role in agricultural crops production. Boron is an important micronutrient for crops and it significantly aids in a grain setting. Soil applied boron become unavailable to plant due to fixation in soil sites and cause nutrients deficiency in plants, immature grain settings, and yield reduction. Thus, the aim of this work was to quantify the impact of the foliar application of boron gradients on the yield and growth of barley (Hordeum vulgare L.). Five treatments were studied, which included; T1= Control (0% B), T2 = 0.5% B, T3 = 1% B, T4 =1.5% B, and T5 =2% B. The results indicated that foliar application of B significantly increased the yield and growth traits in barley. However, 2% foliar application of B showed the highest value for all studied traits including; plant height (5.6%), number of tillers per plant (2.4%), spike length (32%), weight gain per spike (6.2%), seed index (6%), grain yield (10%), and biological yield (4%). Based on these findings, it can be concluded that the foliar application of B at 2% can be used to improve the growth and yield in barley.

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INFLUENCE OF SIMULATED SPRING FROST ON GROWTH AND YIELD OF THREE BARLEY CULTIVARS

Canadian Journal of Plant Science ◽

10.4141/cjps82-012 ◽

1982 ◽

Vol 62 (1) ◽

pp. 81-88 ◽

Cited By ~ 1

Author(s):

J. S. McKENZIE ◽

D. G. FARIS ◽

R. M. DE PAUW

Keyword(s):

Hordeum Vulgare ◽

Frost Resistance ◽

Spring Barley ◽

Growth And Yield ◽

Freezing Stress ◽

Yield Reduction ◽

Hordeum Vulgare L ◽

Spring Frost ◽

Barley Cultivars ◽

Freezing Chamber

Three spring barley (Hordeum vulgare L.) cultivars were planted at four seeding dates to evaluate the effect of a simulated frost at the two-leaf stage on growth and yield. A portable field freezing chamber was used to subject the plants to a − 5.6 °C stress. The frost caused 49, 64 and 68% injury to the leaves and delayed heading by 2.4, 1.4 and 2.4 days in Gait, Atlas and Olli, respectively. Frost also reduced the number of tillers per plant, ripe heads per plant and plants per plot in all cultivars. Although the late-maturing cultivar Galt had the most leaf frost resistance, the average 13.8% yield reduction within all three cultivars, owing to the freezing stress, was not significantly different between any of the cultivars. Complete defoliation by clipping resulted in no further reduction in yield than that which occurred from partial defoliation by freezing. Delayed seeding resulted in an 8.6% reduction in yield. Frost reduced the yield of early seeded cultivars by 9.8% and late-seeded cultivars by 17.1%.

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