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

Shafiq AHMAD, Taqi RAZA, Shakeel IMRAN, Neal S. EASH, Nawab KHAN, Waqar ASHIQ, Trevan FLYNN

Abstract


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.


Keywords


barley; boron; foliar application; growth; yield.

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DOI: http://dx.doi.org/10.15835/buasvmcn-fst:2021.0013

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