Abstract
Twenty superior accessions of black pepper selected with high yield, field tolerance to pollu beetle and foot rot were evaluated under drought stress conditions in a controlled environment during December 2018. Black pepper variety Panniyur-5, reported to be drought tolerant, was used as the check variety. Observations on biochemical responses of accessions were recorded at field capacity, five and ten days after induction of drought stress. Under field capacity, accessions did not differ for biochemical parameters. During drought stress, enzyme proline increased continuously. Catalase, superoxide dismutase and peroxidase peaked at the beginning of stress and then decreased with continued stress. The accessions IC 598869 and IC 598890 ranked better than the drought tolerant variety P5 and took 20 days to wilt. These accessions and foot rot tolerant accession IC 598906 can be further tested for commercial release.
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Claims 5
Claim · model-written summary
At field capacity, accessions did not differ in biochemical parameters.
Verbatim
e0“Under field capacity, accessions did not differ for biochemical parameters”
t0“black pepper”
Claim · model-written summary
Proline increased continuously during drought stress.
Verbatim
e0“During drought stress, enzyme proline increased continuously”
t0“black pepper”
Claim · model-written summary
Catalase, superoxide dismutase, and peroxidase peaked early and then decreased as stress continued.
Verbatim
e0“Catalase, superoxide dismutase and peroxidase peaked at the beginning of stress and then decreased with continued stress”
t0“black pepper”
Claim · model-written summary
Accessions IC 598869 and IC 598890 ranked above P5 and took 20 days to wilt.
Verbatim
e0“The accessions IC 598869 and IC 598890 ranked better than the drought tolerant variety P5 and took 20 days to wilt”
t0“black pepper”
Claim · model-written summary
The authors propose further commercial testing of IC 598869, IC 598890, and IC 598906.
Verbatim
e0“These accessions and foot rot tolerant accession IC 598906 can be further tested for commercial release”
t0“black pepper”