Indian Journal of Agricultural Research

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Indian Journal of Agricultural Research, volume 43 issue 1 (march 2009) : 1-9

YIELD DETERMINATION IN LENTIL UNDER NON-IRRIGATED AND IRRIGATED CONDITIONS: PHENOLOGY, DRY MATTER DISTRIBUTION AND YIELD ATTRIBUTES

A. Bhattacharya
1Division of Physiology, Biochemistry and Microbiology, Indian Institute of Pulses Research, Kanpur-208 024, India

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Cite article:- Bhattacharya A. (2024). YIELD DETERMINATION IN LENTIL UNDER NON-IRRIGATED AND IRRIGATED CONDITIONS: PHENOLOGY, DRY MATTER DISTRIBUTION AND YIELD ATTRIBUTES. Indian Journal of Agricultural Research. 43(1): 1-9. doi: .

ABSTRACT

Fifteen lentil genotypes were raised in field under non-irrigated and irrigated conditions
during rabi seasons of 1998-99 and 1999-2000. Phenological days, dry matter distribution in
plant parts at different phenological stages, mean environmental temperature and total degree
days during were observed. Seed yield were higher under irrigated as compared to non-irrigated
condition. Multiple regression between seed yield and different traits exhibited that all of them
do not have significant contribution seed yield and seed yield determining factors are found to
be different under irrigated and non-irrigated conditions. Under non-irrigated condition, lentil
seed yield was determined by total dry matter production and its partitioning/day, mean
temperature and total degree-days during podding to maturity. Under irrigated condition, lentil
seed yield was determined by root dry matter at vegetative stage, total dry matter yield, per day
dry matter production and its partitioning during seed filling period and total degree-days during
flowering to podding. Multiple correlation (R) of traits was 0.9996 and 0.9984 and coefficient of
determination (R2) was 0.9992 and 0.9964 under non-irrigated and irrigated conditions,
respectively. Optimum values of the traits for seed yield maximization also varied amongst irrigated
and non-irrigated conditions.

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