Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Response of Growth, Yield Attributes and Yield to the Application of Knap and Naa in Cowpea (vigna Unguiculata (l.) Walp.)

MD. JAFAR ULLAH
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

QUAZI ABDUL FATTAH
Department of Botany, University of Dhaka, Dhaka-1000, Bangladesh.

FEROZA HOSSAIN
Department of Botany, Jahangirnagar University, Savar, Dhaka, Bangladesh.

Abstract/ Executive Summary:

Six concentrations each of KNap and NAA along with a control were tested on cowpea cv. Bari Falon- 2. Results showed that irrespective of treatment differences, dry matter of cowpea (Vigna unguiculata) increased during 60 to 105 DAS. Concentrations above 50 ppm NAA increased plant height. The dry matter and yield increased with the increasing of the concentrations of KNap and NAA up to 1250 and 50 ppm, respectively. No significant differences of dry matter accumulation, grain yield and almost all the yield attributes were observed in between 1250 ppm KNap and 50 ppm NAA. The highest values of dry matter/plant (54.52 g), pod length (13.15 cm), number of pods/plant (10.29), number of seeds/pod (10.61), 1000 seed weight (122 g), seed yield/plant (15.51 g), seed yield/ha (1630 kg) and harvest index (37.32%) were obtained due to application of 1250 ppm KNap. Yield attributes had significantly positive correlation amongst them.

Keywords: Cowpea, Vigna unguiculata, Plant height, Dry matter, Yield

Location: Sher-e-Bangla Agricultural University Farm, Sher-e-Bangla Nagar, Dhaka

Start Date: 00-00-1999

End Date: 00-00-2000

Program Area: Crop-Soil-Water Management

Commodity: Cowpea

Objectives:

To study the effect of KNap and NAA on the growth, yield attributes and yield of cowpea.

Methodology:

The experiment was carried out at Sher-e-Bangla Agricultural University Farm, Sher-e Bangla Nagar, Dhaka during the rabi season of 1999-2000. BARI Falon-2 was grown under irrigated conditions. Six concentrations of KNap, namely 750(T₁), 1000(T₂), 1250(T₃), 1500(T₄), 1750(T₅) and 2000(T₆) ppm and six concentrations of NAA, namely, 10(T₇), 30(T₈), 50(T₉), 70(T₁₀), 90(T₁₁) and 110(T₁₂) ppm along with a control (T₀) were tested. The experiment was laid out in a randomized complete block design with three replications for each treatment. The unit plot size was 5 m × 4 m. The land was opened by a disc plough and then prepared by three subsequent ploughing with a country plough. At the final land preparation, nitrogen, phosphorus, potassium, boron, sulfur and zinc at the rate of 20 kg N, 50 kg P₂O₅, 40 kg K₂O, 0.60 kg B, 18.0 kg S and 2 kg Zn per hectare were applied in the form of urea, triple super phosphate, muriate of potash, borax, gypsum and zinc sulfate fertilizers, respectively. Seeds were sown on November 15, 1999 maintaining row to row distance and a plant to plant distance of 50 and 20 cm respectively. The depth of sowing seeds was 2-3 cm. Growth regulators were sprayed on the aerial parts of plants at 45 days after sowing (DAS) till drip. Ten plants from each plot were randomly selected and data on plant height and total dry matter were taken at 60, 75, 90 and 105 DAS at the onset of branching, onset of flowering, pod formation and maturity stages respectively. Data on pod length was taken at 75, 90 and 105 DAS. At the harvest, number of pods/plant, number of seeds/pod and 1000 seed weight were taken. Data on yield/ha and harvest index were taken from the samples which were harvested at maturity from the pre-demarcated area of each plot. Data were statistically analyzed and means were compared by LSD at 5% level of significance.

Source of Information: Bangladesh J. Bot. 36(2): 127-132, 2007 (December)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Among the treatments, T₃ 1250 ppm KNap showed the highest values of dry matter, pod length, number of pods/plant, number of seeds/pod, 1000 seed weight, seed yield/plant, seed yield/ha and harvest index.

Knowledge Management: Journal