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Variability of Direct Seeded Rice Cultivars in Growth, Productivity and Kernel Quality under Different Seeding Depths
Research article
  

Variability of Direct Seeded Rice Cultivars in Growth, Productivity and Kernel Quality under Different Seeding Depths


Qamar uz Zaman, Zubair Aslam, Asif Ameen, Faisal Nadeem, Alam Sher, Tang Chaochen, Ehsanullah, Raza Ullah, Saqib Ali, Muhammad Irfan Waris

1Department of Agronomy, Faculty of Agriculture, University of Agriculture, Faisalabad-38040, Pakistan
2College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China
3National Energy R&D Center for Biomass, China Agricultural University, Beijing 100193, China
4College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China.
5College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China


Corresponding author :

Asif Ameen,
Mobile No: +8618811738319 ,
Email:

Received: September 29, 2015,   Accepted: November 23, 2015,   Published:


Abstract:

Optimum seeding depth is essential to attain the maximum production potential of a cultivar. To examine the effect of various planting depths in coarse and fine aromatic rice under direct seeding, pot and field studies were executed at University of Agriculture, Faisalabad during kharif 2012. Experiment was comprised of two rice cultivars viz., super basmati (fine aromatic rice) and KSK-133 (coarse rice) which were sown at various seeding depths viz., 2, 3, 4 and 5 cm using randomized complete block design (RCBD) under factorial arrangement of treatments replicated three times. Results indicated that stand establishment attributes were statistically affected by seeding depth. Increasing seeding depth resulted in low performance of all the yield related parameters. At seeding depth of 3 cm, leaf area indices, leaf area duration, crop growth rate, total dry matter accumulation and net assimilation rate of coarse and fine rice were improved. Likewise, significantly higher yield and its related components were recorded, when crop was sown at seeding depth of 3 cm. This treatment furnished kernel yields of 5.08 and 4.23 t ha-1 in coarse and fine aromatic rice, respectively, which were significantly higher than rest of treatments. Furthermore, at same depth kernel quality was also improved in terms of lower number of sterile, opaque and chalky kernels. Nonetheless, Water absorption ratio was also higher in these kernels. As for kernels protein content concerned it was decreased with increasing seeding depth. It is concluded that sowing at seeding depth of 3 cm for direct seeded coarse and fine rice cultivars is beneficial in terms of better stand establishment, normal growth, higher yield and improved quality of rice crop.


Keywords: Cultivar, direct seeding, growth, productivity, seeding depth


Citation:

Asif Ameen et al (2015). Variability of Direct Seeded Rice Cultivars in Growth, Productivity and Kernel Quality under Different Seeding Depths. J. of Advanced Botany and Zoology, V3I4.DOI: 10.15297/JABZ.V3I4.06


Copyright:

© 2015 Asif Ameen. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


      
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      Journal of Advanced Botany and Zoology