Evaluation of mungbean genotypes with tolerance to pre-emergence waterlogging
Issue Date
6-2017
Abstract
Mungbean productivity under rice-based cropping system is greatly affected when unexpected flooding occurs during the critical growth stage of the crop. This is due to poor soil drainage of most lowland rice areas. One of the growth phases in mungbean where it is most susceptible to flooding damage is immediately after planting or at the pre-emergence stage. Development of waterlogging-tolerant varieties will help reduce damange and increase productivity caused by unseasonal heavy rains during this critical period. Therefore, this study was conducted to screen mungbean genotypes with resistance to pre-emergence waterlogging. A total of 403 mungbean accessions from the National Plant Genetic Resources Laboratory were screened for pre-emergence waterlogging tolerance wherein experiments were set-up by batch with Pag-asa 19 and Pag-asa 21 varieties as the control. Seeds were submerged in distilled water to at least thrice the volume of the seeds for 3 days. There after, seeds were planted in seedling trays with 1.1 garden soil and coir dust. Seedling emergence was taken on both the control and treated seeds after 5 days. Deformed seedlings and root appearance were noted as well. Entries were subjected to confirmatory screening to verify their performance under pre-emergence, waterlogging conditions. Top accessions from this screening were identified and this include: PHL4326, PHL7064, PHL12636, PHL12834, PHL12847, PHL12893, PHL14295, PHL14296, PHL15163, PHL15200, PHL15243, PHL15330, and M90-3-3. Results clearly indicated genotypic variability among mungbean accessions for pre-germination waterlogging tolerance. These accessions will undergo another series of screening, i.e. more parameters and longer days of screening and thereafter will be used as parents to improve mungbean productivity.
Source or Periodical Title
Philippine Journal of Crop Science
ISSN
0115-463X
Volume
42
Issue
Supplement no. 1
Page
102
Document Type
Article
College
College of Agriculture and Food Science (CAFS)
Language
English
Subject
Mung bean; Waterlogging (Soils)
Recommended Citation
Oraye, Claudette D.; Rafanan, Kristelle Mae A.; and Enicola, Elmer E., "Evaluation of mungbean genotypes with tolerance to pre-emergence waterlogging" (2017). Journal Article. 5584.
https://www.ukdr.uplb.edu.ph/journal-articles/5584
En – AGROVOC descriptors
VIGNA RADIATA RADIATA; MUNG BEANS; VARIETIES; GENOTYPES; SELECTION; WATERLOGGING; WATER TOLERANCE