Open AccessResponse of Maize Hybrids and Inbred to Yield and its Components Under Irrigation Interval
Author(s) -
MUTHUKRISHNAN T.S,
Zeyad A. Abdul Hamed,
M A Ghadir
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/904/1/012003
Subject(s) - hybrid , sowing , randomized block design , grain yield , yield (engineering) , agronomy , mathematics , biology , irrigation , inbred strain , growing season , horticulture , materials science , gene , metallurgy , biochemistry
In order to estimate some genetic parameters for five inbred lines AG116, AG-M20, MH17, MH121 and ZM4, they were entered into a complete cross-breeding program. Khalidiya - east of Ramadi in two seasons (fall 2019 and spring 2020). The comparison experiment was applied using the RCBD randomized complete block design in the order of split-plot and with three replications, where the main plots for irrigation was interval 6, while 12 days and the secondary plots for genotypes (breeds and hybrids) to estimate some characteristics of yield and its components. Parental inbred and their reciprocal and inverse hybrids differed significantly in number of days from planting to 50% tasseling, number of rows per ear, number of grains per row, grain weight and grain yield in the two seasons of the study, cross-hybrid MH17 × AG-M20 and the inverse hybrid AG116 × ZM4 outperformed in the fall season 2019 when it gave a yield of 173.00 g plant -1 and 169.60 g plant -1 , respectively. In the spring season 2020, the cross-hybrid MH121×MH17 and the reverse hybrid AG116×AG-M20 recorded the highest average for the character, reaching 165.20 and 142.90 g plant -1 , respectively.