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Effect of Flooding on Germination, Yield and Yield Components of Aus Rice Cultivars

Author

Listed:
  • Mondal B

    (Bhabotosh Mondal, Officer, Bangladesh, Krishi Bank, Shyamnagar, Satkhira, Bangladesh)

  • Uddin MMK

    (Munshi Mohammad Kutub Uddin, PhD student, Department of Entomology, Patuakhali Science & Technology University, Patuakhali, Bangladesh)

  • Bain R

    (Ramproshad Bain, Lecturer, shaheed Auyeb Musa memorial college, Paikgacha, Khulna, Bangladesh)

  • Nahar MS

    (Mst. Samshun Nahar, MBS, Government. Huseyn Shaheed suhrawardy College, Magura, Bangladesh)

  • Nipa S

    (Shamim Ara Nipa, Additional Agriculture officer, Batiaghata, Khulna, Bangladesh)

Abstract

In Kharif I season direct seeded local Aus rice cultivation is a common practice in the coastal non saline area of Bangladesh. The crop during this period is vulnerable to various abiotic stresses like tidal flood which goes for several days making uncertain germination and poor establishment of the crop. An experiment was carried out in pots to evaluate the effect of artificial flooding on germinability and yield contributing characters of thirty aus rice genotypes. The experiment was conducted in the Agronomy Field Laboratory of Patuakhali Science and Technology University, Dumki, Patuakhali during the period from April-July 2016. Two treatments viz. flooding and non-flooding were imposed on each variety. The experiment was laid out in randomized complete block design with two replications. The result of the experiment showed that varieties under non-flooding condition performed better over flooded condition. Germination was reduced by 31.58% in flooding situation. However, the cultivar Abdul Hai gave maximum germination (84.00%) under flooding condition. Flooding also reduced plant height, total number of tillers per hill, number of effective tillers, panicle length, number of filled grains panicle-1, 1000 grain weight, grain yield, straw yield and harvest index by 1.96%, 23.07%, 28.34%, 4.13%, 8.41%, 4.50%, 11.86%, 7.48% and 3.48%, respectively. Flooding interaction with cultivars revealed that highest effective tillers per hill (39.50), grains panicle-1 (144.25), and 1000 grain weight (40.38 g), grain yield (76.17 g plant-1), straw yield (116.53 g plant-1) and harvest index (39.53%) were recorded in Abdul Hai. Correlations among characters under flooded condition showed that grains panicle-1, grain yield, straw yield and harvest index were significantly and positively correlated with germination percentage. Hierarchical cluster analysis showed that five cultivars viz. BR2, Kali Haitta, Sada Jamai Babu, Abdul Hai and Halai had maximum mean germination percentage (72.20%) and mean grain yield (69.84 g plant-1). These results suggests that variety Abdul Hai is more tolerant to submergence than other varieties.

Suggested Citation

  • Mondal B & Uddin MMK & Bain R & Nahar MS & Nipa S, 2024. "Effect of Flooding on Germination, Yield and Yield Components of Aus Rice Cultivars," International Journal of Research and Scientific Innovation, International Journal of Research and Scientific Innovation (IJRSI), vol. 11(5), pages 868-885, May.
    • Handle: RePEc:bjc:journl:v:11:y:2024:i:5:p:868-885
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    2. Dim Coumou & Stefan Rahmstorf, 2012. "A decade of weather extremes," Nature Climate Change, Nature, vol. 2(7), pages 491-496, July.
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