Open AccessMODIFIED MASS SELECTION WITHIN CORN SYNTHETIC VARIETY
Author(s) -
F. Y. Baktash
Publication year - 2016
Publication title -
iraqi journal of agricultural science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.232
H-Index - 7
eISSN - 2410-0862
pISSN - 0075-0530
DOI - 10.36103/ijas.v47i1.643
Subject(s) - selection (genetic algorithm) , randomized block design , yield (engineering) , grain yield , population , zea mays , agronomy , biology , mathematics , materials science , computer science , machine learning , demography , sociology , metallurgy
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.