1Advance Centre for Rainfed Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Dhiansar, Samba-181 104, Jammu and Kashmir, UT, India
2Gopal Narayan Singh University, Jamuhar, Rohtas-821 305, Bihar, India
*Corresponding Author: Vikas Gupta, Advance Centre for Rainfed Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Dhiansar, Samba-181 104, Jammu and Kashmir, UT, India, Email: vikasext3@skuastj.org
Pigeonpea pulse crop is known to be one of the ancient and an important pulse grown in about all over the Indian sub continent. It is grown in about all agro-climatic zones like plains, hills, deccan plateau, etc. However, in sub tropical areas of Jammu region, pigeonpea is grown by the farmers, but there are not any specific recommendations for the varieties which are well suited particularly for this area. Also, agrometerological studies for pigeonpea have also not done so far in this area. So, to shift the farmers of lower Shivaliks from their traditional agriculture towards pulses particularly pigeonpea for the better soil health; current research has been conducted for evaluating pigeonpea varieties best suited to this area and also work out its thermal requirements for various phenophases and relationship study.
The investigation was carried out during kharif 2018 to 2020 under AICRP on Pigeonpea at Research Farm of ACRA, Dhiansar, SKUAST-Jammu in Inceptisols. The experiments comprised of eight (08) varieties of pigeonpea laid out in RBD with three replications. The thermal requirements for various phenophases worked out along with the relationship studies.
Variety VLA-1 recorded significantly higher grain yield (28.0 q/ha), biological yield (114.52 q/ha), nutrient uptake, yield attributes and agrometerological parameters viz., accumulated growing degree days (AGDD), accumulated helio-thermal units (AHTU) and accumulated photothermal units (APTU) and was followed by the values obtained with varieties AL-2207 and PA-619. Days to 50% flowering and physiological maturity ranged between 65-77 and 91-112 days, respectively. With respect to the weather relationship study, the grain yield of pigeonpea has very highly significant and positive relationship with AGDD, AHTU and APTU. Accumulated growing degree days at 50% flowering, 50% pod formation and physiological maturity was positively correlated with grain yield with R2 values of 67, 66 and 65%, respectively.
GDD, HTU, Pigeonpea, PTU, Relationship, Varieties, Weather factors
