Study of response to aluminium toxicity among Maize landraces of North Eastern Hill Region (NEH) of India / (Record no. 4498)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03296nam a22002057a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20220103121220.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 150827b xxu||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CPGS |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 633.1523 |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Moirangthem, Nirali |
| 9 (RLIN) | 5017 |
| 245 ## - TITLE STATEMENT | |
| Title | Study of response to aluminium toxicity among Maize landraces of North Eastern Hill Region (NEH) of India / |
| Statement of responsibility, etc | by Nirali Moirangthem |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc | Umiam : |
| Name of publisher, distributor, etc | CPGS, CAU, |
| Date of publication, distribution, etc | c2015 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | [22], 70p.: |
| Other physical details | ill., some col.; |
| 440 ## - SERIES STATEMENT/ADDED ENTRY--TITLE | |
| Title | [Genetics and Plant Breeding, School of Crop Improvement] |
| 9 (RLIN) | 5018 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | A set of fourteen landraces collected from different states of North Eastern India were evaluated for response to aluminium stress. The evaluation was based on hydroponics studies with special emphasis on root characters, hematoxylin staining and recovery of treated plants in field condition. A path analysis study on potential traits affecting selection was also done. Differential response of landraces evaluated to aluminium stress was observed. Root growth studies in hydroponics suggested that landraces N11 (1) with the highest net root length as well as root to total biomass ratio and Mi5 (8) with comparable performance as control for all traits studied responded better to induced aluminium stress. The hematoxylin staining method gave consistent results with hydroponics experiment. Net root length was negatively correlated with phenotypic index for hematoxylin staining. Landraces N11 (1), S11 (1) and S16 (1) with a phenotypic index of 1 recorded almost comparable results with control suggesting that mechanism of tolerance was controlled at the apoplastic level. From Path Analysis studies on yield, it could be concluded that selection criteria for higher yield in our conditions would be effective for ear weight and total grain weight. Yield results in the field, showed the control plants to be significantly better yielders as compared to the treated plants. For treated plants, Mi1 (1) and M7 (4) were the highest yielding approximately 19.06 and 18.99 q/ac and were at par statistically at with each other. Mi1 (1) also recorded the highest total dry weight accumulation in hydroponics studies while M7 (4) recorded the highest harvest index for treated plants in the field experiment. Both landraces had also recorded comparable results for net root length and root dry weight under treated conditions with control plants in the hydroponics experiment. Better yield in Mi1 (1) as compared to Mi5 (8) and N11 (1) even with a very high hematoxylin index indicated that tolerance for this landrace is possibly governed at the symplast level. From these findings of the present study, it may be seen that the genetic variability exists in the landraces studied and could be exploited as source germplasm in breeding programmes for aluminium stress after further confirmation.<br/>Keywords: Aluminium tolerance, Maize landrace, North Eastern India, Hydroponics, Hematoxylin stain, Path Analysis. <br/> |
| 651 ## - SUBJECT ADDED ENTRY--GEOGRAPHIC NAME | |
| Geographic name | Crop production |
| General subdivision | Maize Landraces |
| Geographic subdivision | North East India |
| 9 (RLIN) | 5019 |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Sen, Devyani |
| Relator term | Major Advisor |
| 9 (RLIN) | 5020 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | MSc Thesis |
| Withdrawn status | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection code | Home library | Current library | Date acquired | Total Checkouts | Full call number | Barcode | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | School of Crop Improvement | CPGS | CPGS | 27/08/2015 | 633.1523 MOI | TH168 | 24/01/2020 | 27/08/2015 | MSc Thesis |