S. K. Roy
Assistant Professor in Agriculture, North Khulna Degree College, Khulna, Bangladesh,
M. Y. Ali
Professor, Agrotechnology Discipline, Khulna University, Khulna, Bangladesh
M. S. Jahan
Professor, Agrotechnology Discipline, Khulna University, Khulna, Bangladesh
U. K. Saha
Agrotechnology Discipline, Khulna University, Khulna, Bangladesh,
M. S. Ahmad-Hamdani*
Dept. of Crop Science, Universiti Putra Malaysia, UPM Serdang, Selangor, DE 43400, Malaysia
M. M. Hasan
Dept. of Crop Science, Universiti Putra Malaysia, UPM Serdang, Selangor, DE 43400, Malaysia
Md. Amirul Alam
Dept. of Crop Science, Universiti Putra Malaysia, UPM Serdang, Selangor, DE 43400, Malaysia
Indigenous, Boro rice variety; Growth parameters; Yield attributes
Dr. Purnendu Gain Field Laboratory of Agrotechnology Discipline, Khulna University, Khulna, Bangladesh
Crop-Soil-Water Management
A field experiment was conducted at Dr. Purnendu Gain Field Laboratory of Agrotechnology Discipline, Khulna University, Khulna, Bangladesh during the period from November 2011 to May 2012. The experimental field is situated in the Agro ecological Zones (AEZ) 13, i.e., Gangetic Tidal Floodplain. The geographical situation of the experimental field is at latitude of 22047' N and longitude of 89034' E having subtropical climate characterized by moderately high temperature and heavy rainfall during Kharif Season (March to October) and low rainfall and low temperature during the Robi Season (November to February). The experimental field was a typical rice highland growing medium of black coloured clay-loam with slightly alkalic (pH8.0). The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The selected field was firstly divided into three equal blocks and each block was further divided into twelve unit plots. The size of each unit plot was 10 m2 (4 m x 2.5 m). The total number of plots was thirty six. All blocks were separated by a 1.0 m buffer-zone (non cultivated area) and a 50 cm gap was set up between each plot.. In this research work twelve local Boro rice varieties were included viz. Nayon moni, Tere bale, Bere ratna, Ashan boro, Kajol lata, Koijore, Kali boro, Bapoy, Latai balam, Choite boro , GS one and Sylhety boro. Pre germinated seeds were sown in the wet seedbed during Boro season on 26th November, 2011. Transplanting was done with three seedlings hill-1maintaining 20 cm hill to hill and 25 cm line to line spacing on 16th January, 2012. The experimental location was uniformly fertilized with urea, TSP (Triple Super Phosphate), MoP (Muriate of Potash), gypsum and zinc sulphate at 110, 60, 45, 30 and 10 kg ha-1 respectively. The total TSP, MoP, gypsum, zinc sulphate and one third of urea were applied as basal dose. The rest of the urea was applied at two equal split doses at 30 days after transplanting (DAT) and at 50 DAT. Two hand weeding were done to check weed infestation in the experimental field at 25 DAT and 40 DAT. The experimental field was irrigated regularly up to dough stage depending upon the moisture content of the field and flood irrigation method was practiced. During the experimentation, common rice insect pests such as grass hopper, stem borer, rice bug and nematode were found to infest the crop. Write the active ingredient (Semcup 50 EC) @ 1L ha-1 was applied to control grass hopper, stem borer, and rice bug, while nematode was controlled by application of active ingredient (Furadan 5G) @ 10 kg ha-1. Nayonmoni, Ashan boro, Kajol lata, Bapoy, Latai balam and Choite boro were harvested on 23rd April, 2012 and GS one, Bere ratna, Kali boro were harvested on 2nd May 2012 & Koijore, Sylhety boro, Tere bale were also harvested on 5th May 2012. Data were recorded on growth parameters (at 50, 65 and 80 day after transplanting) and yield parameters at final harvest. All the collected data were analyzed following the Analysis of Variance (ANOVA) and differences between means were adjudged by Duncan's New Multiple Range Test (DMRT) (Gomez and Gomez, 1984) using a computer operated program MSTAT-C (Version 2.6).
Life Sci J 2014;11(4):122-126]. (ISSN:1097-8135).
Journal