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Effects of Seeding Method and Seed Rate on Yield and Yield Attributes of Field Pea (2019--2020)

M. O. ALI
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

M. A. ISLAM
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

J. HOSSAIN
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

A.K.M.M. RAHMAN
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

Abstract/ Executive Summary:

A field experiment was conducted at PRSS, BARI, Gazipur during Rabi season 2019-20 to find out the sowing method and optimum seed rate of BARI Motor 3 for better crop growth and yield. The experiment was conducted in a randomized complete block design with three replications. There were three sowing methods- line sowing at 40 cm and 50 cm, and broadcast sowing; and three seed rates i.e., 70 kg ha^-1, 80 kg ha^-1, and 90 kg ha^-1. It was observed that between line and broadcast sowing there was no significant difference. Among the seeding methods line sowing with 40cm gave better yield and yield attributes over other treatments. Comparing with seed rates 90 kg ha^-1 increased plant population seeds pod^-1 and grain yield. SR @ 90 kg ha-¹ X LS 40 cm of BARI Motor 3 gave better growth and yield. However, this experiment will be continued for the next year for the concrete conclusion.

Keywords: Field pea, Optimal plant population, Seeding method

Location: PRSS, BARI, Gazipur

Start Date: 00-00-2019

End Date: 00-00-2020

Program Area: Variety and Species

Commodity: Pea

Objectives:

The objectives of this study are to determine the optimal plant population densities for the newly release field pea variety (BARI Motor 3) grown in Bangladesh.

Methodology:

The field experiment was conducted at PRSS, BARI, Gazipur during the rabi season of 2019-20 to find out the sowing method and optimum seed rate of newly released field pea variety (BARI Motor-3) for better crop growth and yield. The experiment was conducted in a randomized complete block design with three replications. There were three sowing methods- line sowing at 40 cm and 50 cm, and broadcast sowing; and three seed rates i.e., 70 kg/ha, 80 kg/ha, and 90 kg/ha. The crop was sown on 19 November 2019 and harvested on 03 March 2020. The dimensions of the plots were 4 m x 5 m. The soil was sandy loam having a pH of 7.5. The fertilizers were applied @ 20-20-20 NPK kg/ha. One hand weeding was done 25 days after sowing (DAS) for controlling the weed. Tafgor @ 2ml/Lwas used one time for controlling aphid at 30 DAS. Data on yield contributing characters were recorded from 10 randomly selected plants from each plot and grain yield (kg/ha) was recorded from the whole plot after harvest. The GenStat 15th Edition software package was used for all statistical analyses. The mean differences between treatments were separated by the least significant difference (LSD) at P≤ 0.05 for the measured variables.

Source of Information: Annual Research Report 2019-2020, Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The yield and yield attributes of field pea such as plant population/m², 1000-seed weight, and grain yield are significantly affected by the sowing method. The highest no. of plant population/m² (60) was obtained from line sowing with 40 cm spacing and the lowest one (55) from the broadcasting seeding method. Plant height, pods/plant, and no. of seeds/pod were found insignificant for different seeding methods. 1000-seed weight varied significantly as seeding methods difference. The largest seeds (10.15 g) were found from line sowing with 40 cm spacing seeding method and line sowing with 50 cm spacing seeding method produced the smallest (10.10 g) size seed. All yield attributes of field pea finally contribute to yield and yield was significantly different with the seeding method. Line sowing with 40 cm spacing seeding method produced the highest yield (1889 kg/ha) and line sowing with 50 cm spacing seeding method had the lowest seed yield (1593 kg/ha) which is at per with broadcasting seeding method. The yield and yield attributes of field pea-like plant population m^-2, no of seeds pod^-1 and grain yield are significantly affected by seed rate. There were no significant effects of seed rate on plant height, no of pods plant^-1, and seed size of field pea (Table 2.2). The maximum plant population m^-2 (61) was found at 90 kg ha^-1 followed by 80 kg ha^-1, while the minimum plant population was recorded at 70 kg ha^-1 (50). The highest no of seeds pod^-1 was obtained from 70 kg ha^-1 (5.48) followed by 80 kg ha^-1 (5.33) while the lowest no of seeds pod^-1 was found in 90 kg ha^-1 due to high population pressure and competition of nutrients. Grain yield was found highest in seed rate @ 90 kg ha^-1 (1889 kg ha^-1) and lowest from seed rate @ 80 kg ha^-1 (1815 kg ha^-1) and seed rate @ 70 kg ha^-1 (1593 kg/ha). The yield and yield attributes of field pea such as plant height, 1000-seed weight and grain yield were significantly affected by the interaction of sowing method and seed rate (Table 2.3). Plant population/m², pods/plant, seeds/pod were not affected by the interaction of the sowing method and seed rate. The tallest plants were obtained from seed rate @ 90 kg/ha X line sowing 50 cm seeding interaction (138 cm) and the shortest plants were found in SR @ 90 kg/ha X Broadcasting (126 cm) followed by SR @ 80 kg/ha X Broadcasting (127 cm) and in SR @ 70 kg/ha X Broadcasting (127 cm) interactions. Seed size was also varied significantly by seed rate and seeding method interactions. The largest seeds were found from SR @ 90 kg/ha X LS 40 cm (10.19 g) and the smallest seed were obtained from SR @ 80 kg/ha X Broadcasting (10.06 g) which is followed by SR @ 90 kg/ha X LS 50 cm (10.14 g) treatment combination. Grain yield of field pea was also affected significantly by seed rate and seeding method interactions. The highest yield was produced from SR @ 90 kg/ha X LS 40 cm (2055 kg/ha) interaction and lowest yield was found from SR @ 70 kg/ha X LS 50 cm (1278 kg/ha) and it was at per with SR @ 70 kg/ha X Broadcasting (1555 kg/ha). Hence, there were some effects of seeding method and seed rate on yield and yield components of newly released field pea variety (BARI Motor 3) during rabi season of 2019-20. Regarding the cost and return analysis, the maximum net return Tk. 48110 was obtained from the treatment SR @ 90 kg/ha X LS 40 cm which is followed by treatment SR @ 70 kg/ha X LS 40 cm and SR @ 90 kg/ha X LS 50 cm. The highest benefit-cost ratio 2.41 and 1.93 were recorded from the treatment SR @ 90 kg/ha X LS 40 cm

Knowledge Management: Report/Proceedings