Tassel morphology and pollen productivity in 3 Sc Hybrid maize (Zea mays L.) in North Of Khozestan, Iran
Journal Title: International Journal of Farming and Allied Sciences - Year 2016, Vol 5, Issue 1
Abstract
Maize (Zea mays L.) is the most important staple crop in Khozestan with the big holder farming systems accounting 32% of the total produced maize of iran. An experimental field located in Safi Abad Agriculture Center (SAC) which is located in Khouzestan province of iran to test three local populations maize for tassel morphology, pollen prodactivity (pp) g, Main branch length (MBL)cm, Number of branches (NTB), Number Alopcia per row (NAPR) and Garin yield (GY ) ton/ha. The experiment was set up in randomized complete block on spilt plotse design in 2 different dates of planting, july 17th and Aug 6th in main plots and sub plots are hybrids corn that have 3 genotype which two of them are new medium maturity hybrids and Sc704 as witness with three replications in 2010. Information about productive elements have been gathered from countings and measurements of Five plants, which were taken from each plot. Pollen was collected in pollen bags in each plot that plants were randomly selected from two middle rows. The collection of pollen was started when the first anthers appeared on the tassels main branches. Population analyses have revealed a large amount of variability for tassel morphology, pollen productivity (PP) and Grain yield (GY). Pollen productivity (PP) was significantly affected by date, Main branch length (MBL)cm, Number of branches (NTB), Number alopcia per row (NAR) and Grain yield (EY ) ton/ha was significantly affected by date and genotype. According to the results, planting date has effitient effects on seed performance and the other triats. The rate of produced pollen grain in the Second date of planting increased to 53%.And on the other hand in second date of planting. The rate of alopecia per row decreased to 51% in compare whith the first date of planting that it leads to have have more 36.75% seed performance. In addition the effects of hybrid was sufficient for all analized traits except the number of alopecia per row . in the case of hybrid effects the maximum performance of seed is respecting Sc MOBIN with the performance of 11.60 ton.ha -1 and Sc 704 9.61 ton.ha -1 . So, MOBIN in compare whith the two hybrids . in the north region of Khouzestan is the leading variety .
Authors and Affiliations
Mohammad Tahmasebi, Khalil Alami Saeid, Mohammad Barzegari, Behnam Habibi Khanyani
Keywords
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