Abstract
Drought is considered to be one of the major abiotic stress factors that severely limit grain yield, often causing extensive economic loss to agriculture. Improving drought tolerance in maize has become one of the top priorities in maize breeding programs. Identification of drought tolerant maize inbreeds is therefore an step in maize breeding. Nine inbred lines e.g., UMARKOTE-3, CML-411, CML-122, CML-40, CML-27, CML-336, CML-191, CLO-2450 and CAL-1415 were identified to have higher level of drought tolerance. Tolerant inbred lines maintained higher chlorophyll content, SPAD value, chlorophyll stability index, cell membrane stability index, relative water content and comparatively higher grain yield when subjected to drought stress. These inbreeds also showed lower leaf senescence and rolling. In contrast, CML-161 and CML-300 were most sensitive and recorded lowest grain yield among the inbreed lines under moisture deficit. Drought tolerant inbred lines identified in this study are intended for utilization as potential donors for development of maize hybrids suitable for water deficit condition.
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Claims 7
Claim · model-written summary
Nine named inbred lines showed higher drought tolerance.
- Material
- UMARKOTE-3, CML-411, CML-122, CML-40, CML-27, CML-336, CML-191, CLO-2450 and CAL-1415e0
- Outcome
- drought tolerancee0
- Direction
- highere0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nine inbred lines e.g., UMARKOTE-3, CML-411, CML-122, CML-40, CML-27, CML-336, CML-191, CLO-2450 and CAL-1415 were identified to have higher level of drought tolerance”
t0“maize”
Claim · model-written summary
Tolerant lines maintained higher chlorophyll content, SPAD value and chlorophyll stability index under drought.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tolerant inbred lines maintained higher chlorophyll content, SPAD value, chlorophyll stability index”
t0“maize”
Claim · model-written summary
Tolerant lines maintained higher cell membrane stability and relative water content under drought.
- Treatment
- drought stresse0
- Outcome
- cell membrane stability index, relative water contente0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tolerant inbred lines maintained higher chlorophyll content, SPAD value, chlorophyll stability index, cell membrane stability index, relative water content and comparatively higher grain yield when subjected to drought stress”
t0“maize”
Claim · model-written summary
Tolerant lines maintained comparatively higher grain yield under drought.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“comparatively higher grain yield when subjected to drought stress”
t0“maize”
Claim · model-written summary
Tolerant lines had lower leaf senescence and rolling.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These inbreeds also showed lower leaf senescence and rolling”
t0“maize”
Claim · model-written summary
CML-161 and CML-300 were most sensitive to moisture deficit.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CML-161 and CML-300 were most sensitive”
t0“maize”
Claim · model-written summary
CML-161 and CML-300 had the lowest grain yields under moisture deficit.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CML-161 and CML-300 were most sensitive and recorded lowest grain yield among the inbreed lines under moisture deficit”
t0“maize”