Indian Society of Genetics & Plant Breeding

Evaluation of yield performance of selected North East Himalayan (NEH) maize landrace accessions of India, outside their habitat

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The study pertains to evaluation of yield performance of a
selected set of North East Himalayan (NEH) landrace
accessions of maize in locations outside their habitat. The
geographical coordinates of the collection sites of these
accessions were first mapped, followed by trials at Delhi
and Hyderabad during 2005-2006. The analysis revealed
considerable variation among the accessions for grain
yield and its components, besides G x E interactions.
Although the grain yields of the NEH accessions are, in
general, not encouraging at Delhi and Hyderabad, due to
drastically different climatic conditions, the study resulted
in identification of 10 highly promising accessions for
different yield-related traits at Delhi and/or Hyderabad.
These were IML216 (IC130749; Arunachal Pradesh), IML347
(Sikkim), IML315 (IC251354; Tripura), IML390 (Sikkim),
IML384 (Sikkim), IML264 (IC131166; Sikkim), IML365
(Nagaland), IML303 (IC251290; Nagaland), IML308
(IC251313; Sikkim) and IML242 (IC130980; Assam). Among
these, IML216, IML347, IML315 and IML390 are particularly
worth-noting due to their excellence performance for
various yield attributes across both locations. Such
accessions could be potentially utilized in developing
broad-based pools/populations for improving diverse
agronomically important traits in maize.

Keywords: Maize, landraces, North Eastern India, yield components


Year: 2009
Volume: 69
Issue: 3
Article DOI: N/A
Print ISSN: 0019-5200
Online ISSN: 0975-6906


J. C. Sekhar info_circle
Kalyani Srinivasan info_circle

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