Experiment code 20.2.3.15
Experiment Title EFFECT OF TOPPING ON PIGEONPEA VARIETIES UNDER DIFFERENT SPACING
Research Type Departmental Research
Experiment Background Pigeon pea [Cajanus cajan (L.) Millsp.] is an important pulse crop extensively grown in different cropping systems on almost all type of soil and in all the districts of Gujarat state. In Gujarat, it is cultivated in an area of 3.36 lakh hectares with productivity of 1104 kg/ha. South Gujarat is main pigeon pea growing region of our state wherein it covers 1.60 lakh hectares of area. Large coastal area was flooded in monsoon which was vacant in rabi condition and Pigeonpea will provide a good alternative in this tract. New varieties of pigeonpea (GT 104 & GT 110) released by Pulses Research Station, N.A.U., are found promising for higher yield. These varieties having spreading plant type with dark green foliage. Its growth habit is so flexible which required wider spacing. Furthermore the variety having the habit of auxiliary pod bearing which definitely respond to restricted growth of meristimatic region of main shoot. Hence, there is a need to fixed proper crop geometry with effect of topping. Moreover, the yield potential of any variety/hybrid can be exploited by adopting suitable recommended package of practices. There is no research work has been carried out on topping for pigeon pea varieties. Hence, present experiment is proposed with following objectives.
Experiment Group Natural Resource Management
Unit Type (01)RESEARCH UNIT
Unit (39)MEGA SEED PULSES AND CASTOR RESEARCH UNIT (NAVSARI)
Department (292)Nodal officer (megaseed) & Unit Head (seed), Pulses and Castor Research Station
BudgetHead (328/12007/00)328/01/REG/00211
Objective

To find out the appropriate effect of topping on pigeon pea varieties

Season Kharif
Location Unit Type (01)RESEARCH UNIT
Location Unit (39)MEGA SEED PULSES AND CASTOR RESEARCH UNIT (NAVSARI)
Location Department (292)Nodal officer (megaseed) & Unit Head (seed), Pulses and Castor Research Station
Plot No 8
PI Name (NAU-EMP-2007-000832)BRIJESHKUMAR KANTILAL PATEL
PI Email tanubrij@nau.in
PI Mobile 9974061726
Year of Approval 2024
Commencement Year 2024
Completion Year 2026
Design of Experiment

FRBD

Crop Spacing (cm x cm)

As per treatment

120 cm x 60 cm

150 cm x 60 cm

Gross Plot (m x m) 12.00 m x 3.60 m
Net Plot (m x m) 6.00 m x 2.40 m
Total Experiment Area (m2) 2215.20 sq. m.
Plot History Last Three Year

2021- Pigeon pea

2022- Pigeon pea

2023- Pigeon pea

Initial Soil Sample Analysis Report

Nitrogen- Low

Phosphorus- Medium

Potash- High

Initial Soil Sample Analysis Report Attachment Attachment Not Available!
Layout Plan
Layout Plan Attachment
Treatment

12 (Combination of A, B & C)

A) Varieties:- 2

V1 - GT 104

V2 - GT 110

B) Spacing:- 2

S1 - 120 x 60 cm

S2 - 150 x 60 cm

C) Topping:- 3

T1 - No topping

T2 - Topping at 60 DAS

T3 - Topping at 75 DAS

Treatment Attachment Attachment Not Available!
(NAU-EMP-2007-000832) BRIJESHKUMAR KANTILAL PATEL tanubrij@nau.in 9974061726 11-03-2025
Active
Pigeon Pea GT-104