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Genotype and Sowing Date Effects on Seed Yield of Olitorius Jute in Late Season

ATMM Alam
Principal Scientific Officer
Bangladesh Jute Research Institute, Manik Mia Avenue, Dhaka-1207, Bangladesh

MM Haque
Professor
Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706, Bangladesh

Abstract/ Executive Summary:

Feld experiments were conducted at four locations of Bangladesh (Manikgonj, Cumilla, Dinajpur and Joshore) to optimize sowing date for higher seed yield of jute in late sown condition. The experimental variables constituted with three genotypes (O-72, O-3820 and Acc.4311) and three sowing dates (31 July, 15 August and 30 August).Each experiment was laid out in a randomized complete block design with three replications. The treatment combinations were assigned randomly and afresh randomization was followed in each replication. Results showed that the genotype Acc.4311, O-72 and O- 3820 produced maximum number of branches (5.40, 4.90 and 4.40, respectively) plant^-1 on 15 August sowing at Manikgonj. The genotype Acc.4311 produced higher number of pods plant-1 than other two genotypes (O-72 and O-3820) in all sowing dates and at all the locations. The highest number of seeds pod^-1 (220.80) was found from the genotype Acc.4311grown at Manikgonj which was statistically similar (196.90) with that of the same genotype sown on the same date at Joshore. The highest thousand seed weight (2.478 g) was recorded from the seeds of genotype Acc.4311 sown on 15 August at Manikgonj followed by same genotype at Joshore.Finally, the genotype Acc.4311 sown on 15 August produced the highest seed yield (2.478 t ha^-1) at Manikgonj which was significantly higher than those of sown on 31 July and 30 August at the same location. As the genotype Acc.4311 was found outstanding sown on 15 August over locations, this genotype may be considered promising for higher seed yield of olitorius jute in late season.

Keywords: Genotype, Sowing date, Seed yield, Jute, Late season

Location: Agriculture Experimental Station, Manikgonj; Jute Research Regional Station, Chandina, Cumilla; Jute Seed Production and Research Station, Noshipur, Dinajpur and Jute Research Sub Station, Monirampur, Joshore

Start Date: 00-00-2011

End Date: 00-00-2012

Program Area: Variety and Species

Commodity: Jute

Objectives:

The present study was undertaken to optimize sowing date for higher seed yield of different genotypes of jute in late sown condition.

Methodology:

Field experiments were conducted at four locations of Bangladesh viz. Jute Agriculture Experimental Station, Manikgonj; Jute Research Regional Station, Chandina, Cumilla; Jute Seed Production and Research Station, Noshipur, Dinajpur and Jute Research Sub Station, Monirampur, Joshore during 2011-12 late jute seed growing season. The climate of the experimental site was sub-tropical in nature having very little rainfall in the mid October and mid November with gradual fall in temperature from last week of October. Treatments consisted of three genotypes which were evaluated at three sowing dates (31 July, 15 August and 30 August) over four locations. Among these three genotypes, O-72 was a released variety but O-3820 and Acc.4311 were advanced breeding lines. The experiment was laid out in a randomized complete block design with three replications. The treatment combinations were assigned randomly and afresh randomization was followed in each replication. The size of each unit plot was 3 m x 3 m. Each unit plot and blocks were separated by 1.0 m and 2.0 m, respectively. At each location and each sowing date, seeds were sown in lines at the rate of 3.0 kg ha^-1 in 30 cm apart furrows made with country plough. Seeds were then properly covered with soil. The crop was fertilized with urea, triple super phosphate, muriate of potash, gypsum and zinc sulphate at the rate of 200, 100, 60, 100 and 10 kg ha^-1 as per recommendation of BJRI (2006). One third of urea and whole amount of other fertilizers were applied as basal during final land preparation and rest of the nitrogen was top dressed in two equal splits at 20 and 40 days after sowing. First weeding and thinning were done at 25 days after sowing when the plants attained a height of about 8 to 10 cm. Second weeding was done at 45 days after sowing just before the top dressing of urea. Miticide, insecticide and fungicide were sprayed as precautionary measure by using recommended doses to protect the crop from insect-pests. For determination of yield contributing characters of jute seed crop, ten plants were randomly selected from each plot and branch plant^-1, pod plant^-1, seed pod^-1 and 1000 seed weight were recorded. For yield, the crop was harvested by whole plot basis and dried in the sun for 5 days. Jute seeds were then threshed out by beating the pods with bamboo stick. It was cleaned and dried in the sun on the cemented floor. Yield of jute seed was converted into kg ha^-1 at 9% moisture content. All data were subjected to statistical analysis by analysis of variance (ANOVA). Microsoft EXCEL and MSTAT software programs were used wherever appropriate and the means were compared according to Duncan’s Multiple Range Test (Gomez and Gomez, 1984). Functional relationships among the parameters were established through correlation and regression analysis.

Source of Information: Bangladesh Agron. J. 2019, 22(2): 83-89

Article Link (Online Journal): DOI: https://doi.org/10.3329/baj.v22i2.47623

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the results it may be concluded that sowing of olitorius jute seed in the first fortnight of August is better for higher seed yield. Among the genotypes, Acc.4311 was found superior in yield and other traits which can be incorporated into the genetic background of high quality genotypes in order to have good quality seeds and to limit seed deterioration which is very important under tropical climates.

Knowledge Management: Journal