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Yield and Yield Attributes of Rapeseed – Mustard (brassica) Genotypes Grown Under Late Sown Condition

MD. MAHBUBUL ALAM
Scientific Officer
Oilseed Research Centre, Bangladesh Agricultural Research Institute (BARI), Gazipur,

FERDOUSI BEGUM
Principal Scientific Officer
Oilseed Research Centre, BARI, Gazipur, Bangladesh.

PRYANKA ROY
Scientific Officer
Oilseed Research Centre, Bangladesh Agricultural Research Institute (BARI), Gazipur,

Abstract/ Executive Summary:

A field experiment was conducted at the Central Research Station of BARI, Gazipur for two consecutive years 2010-11 and 2011-12 with 30 varieties/ genotypes of rapeseed-mustard under three dates of sowing viz., 25 November, 5 December, and 15 December to determine changes in crop phenology, growth and yield of mustard genotypes under late sown condition when the crop faced high temperature. Days to flowering and maturity were different at different planting times. Date of sowing significantly influenced plant height, siliquae/plant, seeds/siliqua, seed yield, and oil content of seed in both the years. The highest seed yield (1310 and 1535 kg/ha) was obtained from the first planting (25 November) in both the years, which was significantly different from two other dates of sowing. Yield and yield attributes of different varieties varied significantly. Among the varieties, BARI Sarisha-16 of Brassica juncea gave significantly the highest seed yield (1495 and 1415 kg/ha), which was statistically identical to BJDH-11, BJDH-12, BJDH-05, BJDH-20, and BARI Sarisha-6 and significantly different from all other varieties. Interaction effect of variety and sowing date significantly influenced plant height, number of siliquae per plant, number of seeds per siliqua, seed yield, and strover yield. The highest seed yield (1758 and 1825 kg/ha) were recorded from BJDH-11 and BARI Sarisha-16 of Brassica juncea at 25 November planting and BJDH-11 produced the highest yield at 15 December in both the years. The maximum strover yield (3758 and 3825 kg/ha) were obtained from BJDH-11 and BARI Sarisha-16 of Brassica juncea at 25 November planting during 2010-11 and 2011-12. The highest oil content of seeds (44.4 % and 45.9%) were obtained from the seed of BARI Sarisha-6 and BARI Sarisha-14 at 25 November planting in both the years.

Keywords: Late sowing time, genotype, Yield.

Location: Oilseed Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur

Start Date: 00-00-2010

End Date: 00-00-2012

Program Area: Variety and Species

Commodity: Mustard

Objectives:

The present investigation is an attempt to analyze the effect of temperature on seed yield, its component and growth parameters and to identify varieties/genotypes against high temperature.

Methodology:

The experiment was conducted at Oilseed Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur during the rabi season of 2010-2011 and 2011-12. There were three planting dates (D1=25 November, D2=5 December, and D3=15 December) and 30 varieties/genotypes of rapeseed/mustard i.e., 11 varieties/genotypes of Brassica napus (V1= Nap-0559, V2= Nap-0519, V3= BARI Sarisha-8, V4= Nap-0544, V5= Nap-0538, V6= Nap- 0546, V7= Nap- 0528, V8= Nap- 0523, V9= Nap- 0564, V10= Nap- 0567and V11= BARI Sarisha-13), 8 varieties/genotypes from Brassica juncea (V12= BJDH-12, V13= BJDH-05, V14= BJDH-11, V15= BJDH-01, V16= BJDH-20, V17= BJDH-17, V18= BARI Sarisha-11, and V19= BARI Sarisha-16) and 11 varieties/genotypes from Brssica campestries (V20= JBC-5115, V21= JBC-5118, V22= BC-9921, V23= BC-9917, V24= BC-9922, V25= BC-9909, V26= BARI Sarisha -9, V27= BARI Sarisha -15, V28= BARI Sarisha -14, V29= BARI Sarisha-6, and V30= Tori-7were used in the experiment. Split plot design was followed in this experiment. The experiment was laid out in split plot design with seeding date in the main plots, and varieties/genotypes in sub-plots. Fertilizer were applied @ 120, 80, 60, 40, 4, 1 kg/ha of N, P, K, S, Zn, and B from Urea, TSP, MP, Gypsum, Zinc sulphate, and Boric acid, respectively. Seeds were sown in lines @ 7-8 kg/ha with 30 cm row spacing and continuous seeding in lines. Half of the nitrogen and full amount of other fertilizers were applied at the time of final land preparation. The remaining half of nitrogen fertilizer was applied as top dressing at 22 days after seedling emergence. Weeding cum thinning was done in the third week after sowing. Two irrigations were applied at 22 and 45 days after emergence and plant protection measures were taken whenever necessary. Data were collected on plant height, first flowering, days to maturity, seed yield, and yield attributing characters and oil content in seed. Data were analyzed statistically and treatment means were compared by Least Significant Difference (LSD) test. Weekly maximum and minimum temperature, total rainfall, relative humidity and sunshine hour have also been presented in Appendix (I). The meterological data were collected from Meterological Station at Joydebpur.

Source of Information: Bangladesh J. Agril. Res. 39(2): 311-336, June 2014 ISSN 0258-7122

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Form the above results, it may be concluded that the variety BARI Sarisha -11, BARI Sarisha -16, BJDH-11, 12, 17, and 20, Nap- 0559, BARI Sarisha-6, BC- 9921, and BC-9922 performed better in 25 November sowing and a wide range of planting time for higher seed yield and delay in sowing reduces seed yield. BARI Sarisha -16, BJDH-11, 12, 17, and 20 , Nap-0559, BARI Sarisha-6 and BC-9922 performed better in 5 December sowing and BARI Sarisha -16, BJDH-11,12, and 20 performed better in 15 December sowing. The variety BARI Sarisha-16 may be recommended for late sowing condition after harvest of T. ama rice.

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