Hydro and aeroponic technique for rapid drought tolerance screening in maize (Zea mays)

BHUPENDER KUMAR; SHRADDHA SRIVASTAVA; HARPREET KAUR; PRANJAL YADAVA; SHANKAR LAL JAT; CHITER MAL PARIHAR; ADITYA KUMAR SINGH; TANU TIWARI; VINOD KUMAR; SAVITA SHARMA; JYOTI KAUL

doi:10.59797/ija.v61i4.4402

Authors

BHUPENDER KUMAR
SHRADDHA SRIVASTAVA
HARPREET KAUR
PRANJAL YADAVA
SHANKAR LAL JAT
CHITER MAL PARIHAR
ADITYA KUMAR SINGH
TANU TIWARI
VINOD KUMAR
SAVITA SHARMA
JYOTI KAUL

DOI:

https://doi.org/10.59797/ija.v61i4.4402

Keywords:

Aeroponics and hydroponics, Drought tolerance score, Maize multi-location testing, Yield

Abstract

Present study was carried out under field and controlled conditions at New Delhi during 2015 and 2016 to stan- dardize a new rapid screening technique to identify drought tolerant maize (Zea mays L.)genotypes. The geno- types have shown variable wilting symptoms and recovery during the stress and while reverting back to hydro- ponic, respectively. Only the tolerant genotypes, viz. hybrid PMH 4 and inbreds DQL633-1-1, DQL 790 PG-2-4, CM 125, CM 140, and LM 14 have shown less wilting and much faster recovery compared to susceptible ones viz., IMH 1415, CML 327, CML 207, CML 176, CML 266, and CML 556(W). The new rapid method could able to identify and verified the drought tolerant and susceptible genotypes very effectively at seedling stage and therefore it can be utilized in breeding programme for preliminary identification of drought tolerant and susceptible genotypes.

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