Performance of hybrid rice grown from separated tillers

Fn Kamarum Munira,Israt Urmee,Md Harun Or Rashid,Md Parvez Anwar,Mst Farzana Rahman,Sabina Yeasmin

doi:10.3329/jbau.v17i4.44619

Abstract

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during July to November 2016 to investigate the performance of separated tillers of hybrid rice variety Dhani Gold. The experiment comprised three times of tiller transplantation viz. 3, 4 and 5 week aged tiller seedlings and four levels of number of tiller seedlings transplanted hill-1 viz. 2, 3, 4 and 5 tiller seedlings hill-1 laid out in a split plot design with 3 replications. The highest plant height was obtained when 3-week aged tiller seedlings were transplanted at the rate of 3 tiller seedlings hill-1. The highest number of total tillers hill-1 and number of effective tillers hill-1 were found when 3-week aged tiller seedlings were transplanted with 5 tiller seedlings hill-1. The highest grains panicle-1 was obtained when 4-week aged tiller seedlings were transplanted with 5 tiller seedlings hill-1. The highest grain yield was found when 3-week aged tiller seedlings were transplanted with 5 tiller seedlings hill-1. The lowest grain yield was found when 5-week aged tiller seedlings were transplanted with 2 tiller seedlings hill-1 in hybrid rice variety Dhani Gold. Based on the findings of the present study it may be concluded that 3-week old tiller seedlings of Dhani Gold should be transplanted at the rate of 4 or 5 tiller seedlings hill-1 for higher yield. Thus present study confirms the potentiality of growing hybrid rice from separated tillers in case of unavailability of seedlings or to minimize the seed cost of high value hybrid rice seeds.  J Bangladesh Agril Univ 17(4): 507–513, 2019

Highlights

Rice (Oryza sativa L.) is the most important food crop of the world and the staple food of more than 3 billion people of the world’s population including Bangladesh
Urea was top dressed in three equal splits at 15, 30, 45 days after transplanting (DAT)
Transplanting of separated tillers was done on 25 August, 2 September and 9 September 2016 according to the age of tiller seedlings

Summary

Introduction

Rice (Oryza sativa L.) is the most important food crop of the world and the staple food of more than 3 billion people of the world’s population including Bangladesh. Rice is grown in more than a hundred countries with a total harvested area of about 170 million hectares, producing more than 800 million tons every year (IRRI, 2016). In respect of area and production, Bangladesh ranks 4th among the rice producing countries of the world following China, India and Indonesia (FAO, 2016). About 75% of cropped area of Bangladesh is used for rice production, with annual production of 34.71 million tons from 11.38 million hectares of land. Rice is grown in Bangladesh in three distinct seasons namely; Aus, Aman and Boro. Transplant Aman rice covers 5.90 million hectares (49.08% of total rice area) of land with a production of 13.48 million tons, 22.88 million tons Aus rice is produced in 10.18 million hectares; and 18.93 million tons Boro rice is produced in 11.79 million hectares of land (BBS, 2016). Transplant Aman rice plays a significant role to meet the national food demand and to ensure food security

Methods

Results

Conclusion