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Effects of Seed Rate on Yield and Yield Attributes of Grass Pea Under Relay Condition (2019--2020)

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

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

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

Abstract/ Executive Summary:

A field experiment was conducted at PRC, BARI, Ishwardi during rabi season 2019-20 to find out the optimum seed rate of BARI Khesari 5 for better crop growth and yield. The experiment was conducted in a randomized complete block design with three replications. There were four seed rates i.e., 40 kg/ha, 50 kg/ha, 60 kg/ha and 70 kg/ha. It was observed that seed rates 70 kg/ha increased plant population seeds/pod and grain yield. Seed rate @ 70 kg/ha performed better for newly released Grasspea variety, BARI Khesari 5. However, this experiment will be continued for the next year for a concrete conclusion.

Keywords: Grasspea, Optimal seeding method, Replay cropping

Location: PRC, BARI, Ishwardi

Start Date: 00-00-2019

End Date: 00-00-2020

Program Area: Farming System

Commodity: Grasspea

Objectives:

The aim of this study is to determine the optimal seeding method and seed rate for the newly release Khesari variety (BARI Khesari 5).

Methodology:

The field experiment was conducted at PRC, BARI, Ishwardi during the rabi season of 2019-20 to find out the optimum seed rate of the newly released grasspea variety (BARI Khesari 5) for better crop growth and yield. The experiment was conducted in a randomized complete block design with three replications. There were four seed rates i.e., 40 kg/ha, 50 kg/ha, 60 kg/ha and 70 kg/ha. The crop was sown on 31 October 2019 and harvested on 27 February 2020. The dimensions of the plots were 4 m x 5 m. The soil was sandy loam having pH 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 50 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 grass pea such as plant population/m², plant height and grain yield are significantly affected by seed rate. The highest no. of plant population/m² (47.3) was obtained from seed rate with 70 kg/ha and the lowest plant population (26.7) from seed rate with 40 kg/ha. Plant height is also significantly affected by seed rate. The tallest plant measured from the seed rate with 70 kg/ha while the dwarf plant measured from the seed rate with 40 kg/ha. Branches/plant, pods/plant, pod length, seed/pod and 1000- seed weight were found insignificant for different seeding methods. The seed rate @ 70 kg/ha produced the highest yield (1920 kg/ha) and the seed rate with 40 kg/ha had the lowest seed yield (1417 kg/ha).

The yield and yield components of grass pea influence significantly seed rates. Seed rate @ 70 kg/ha produced a higher yield over other treatments. It was demonstrated that there was a yield benefit of seed rates over control. Hence, it can be concluded that the optimum seed rate of the newly released grasspea variety (BARI Khesari 5) for better crop growth and yield is 70 kg/ha. However, the experiment will be continued in the next year with an increased seed rate for a concrete conclusion.

Knowledge Management: Report/Proceedings