Evaluating Non-Aromatic Rice Varieties for Growth and Yield under Different Rates of Soil Applied Boron

  • Javaid Ahmed Shah Nuclear Institute of Agriculture (NIA), Tandojam, Sindh, Pakistan
  • Nazia Rais Department of Soil Science, Sindh Agriculture University, Tandojam, Sindh, Pakistan
  • Zia-ul- Hassan Department of Soil Science, Sindh Agriculture University, Tandojam, Sindh, Pakistan
  • Muhammad Abbas Nuclear Institute of Agriculture (NIA), Tandojam, Sindh, Pakistan
  • Muhammad Yousuf Memon Nuclear Institute of Agriculture (NIA), Tandojam, Sindh, Pakistan

Abstract

Balanced boron (B) fertilization has prime importance to obtain maximum paddy yield. The range between B deficiency and toxicity is smaller than most plant nutrients, though B requirement among different crops varies widely. The adequate dose of B for one genotype can either be insufficient or toxic to other. Hence, without knowing the actual requirements of crop varieties, B application can be risky due to the toxicity hazards. A field experiment was undertaken at experimental farm of Nuclear Institute of Agriculture (NIA), Tandojam during 2013, to evaluate the B requirement of two non-aromatic rice varieties. The experiment was arranged in split plot design with three repeats. Two rice varieties Sarshar and Shandar were grown in main plots with four rates of B: 0.5, 1.0, 1.5 and 2.0 kg ha-1 and control (0 kg ha-1) in sub plots. Both the varieties responded differently to B rates. Sarshar produced the highest paddy yield (5691 kg ha-1)  at a rate of 1.5 kg B ha-1 and was 18% greater than control, Shandar produced the highest yield (6075 kg ha-1) at a rate of 1.0 kg B ha-1and was 5% greater than control. B accumulation in paddy and straw of both varieties increased with the increasing B rates. Both varieties were also significantly (p<0.05) varied in B accumulations. Comparatively, rice variety Sarshar accumulated 9% and 22% more B in straw and paddy than the Shandar. Thus, the B requirement of Sarshar was relatively higher than the Shandar. Shandar can be grown without the additional B application, whereas, Sarshar requires additional B for its maximum harvest in B deficient soils. 

Published
Jun 1, 2016
How to Cite
SHAH, Javaid Ahmed et al. Evaluating Non-Aromatic Rice Varieties for Growth and Yield under Different Rates of Soil Applied Boron. Pakistan Journal of Analytical & Environmental Chemistry, [S.l.], v. 17, n. 1, p. 7, june 2016. ISSN 2221-5255. Available at: <http://pjaec.pk/index.php/pjaec/article/view/31>. Date accessed: 19 nov. 2018.