MODIFIED MASS SELECTION WITHIN CORN SYNTHETIC VARIETY

  • F.Y. Baktash
Keywords: grain yield , yield components , improvement, regression.

Abstract

This research  was undertaken to evaluate five cycles of modified mass selection to improve grain yield in synthetic corn (Zea mays L.) variety IPA-5018. The selection was carried out in spring and fall seasons, during, 2013-2015 using 10% selection intensity. The five  populations obtained after selection and the original population were evaluated. The experimental design was a randomized complete block design with five replications. The results were revealed a significant differences among selection cycles in grain yield and some yield components.  The cycle five produced highest grain yield (9699.30 kg.ha-1) and increased 34.88% to the original population. The regression of grain yield, number of grains.ear-1 and grain weight to selection cycles were significantly linear and R2 more than 80%. We  concluded that the  modified mass selection  could be used successfully in improving the grain yield and some yield components of  corn synthetic varieties.

Published
2016-02-25
How to Cite
Baktash, F. (2016). MODIFIED MASS SELECTION WITHIN CORN SYNTHETIC VARIETY. IRAQI JOURNAL OF AGRICULTURAL SCIENCES, 47(1). https://doi.org/10.36103/ijas.v47i1.643
Section
Articles