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Journal of soil science and plant nutrition

versión On-line ISSN 0718-9516


REHMAN, A et al. Foliage applied boron improves the panicle fertility, yield and biofortification of fine grain aromatic rice. J. Soil Sci. Plant Nutr. [online]. 2014, vol.14, n.3, pp.723-733.  Epub 02-Ago-2014. ISSN 0718-9516.

Boron (B) deficiency in rice field is becoming a common problem in South Asia. Correcting B deficiency in rice has potential to improve the rice productivity. Foliage application of B is an easy and effective way to resolve this problem. This study was conducted to evaluate the influence of foliage applied (0.16, 0.24, 0.32, 0.40 and 0.48 M) B on leaf elongation, tillering, water relations, yield and B grain enrichment of rice cultivars Super Basmati and Shaheen Basmati. Foliage applied B improved leaf elongation, tillering, leaf chlorophyll contents, water relations, grain yield, yield-related traits and B grain contents with simultaneous decrease in panicle sterility. However, foliage application of 0.32 M B was the most effective in this regard. An increase in leaf and grain B contents was observed with increase in B concentration in the foliar spray. There was no difference between the cultivars for grain yield; however, Shaheen Basmati had more grain weight, and grain and leaf B contents than Super Basmati. Boron foliage application (0.32 M B) proved an effective way to correct B deficiency in rice. Improvement in grain yield by B application was attributed to increase in grain size and decrease in panicle sterility.

Palabras clave : Boron; chlorophyll; foliar application; rice; sterility; water relation.

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