ABSTRACT
Ten genotypes of maize (Zea mays L.)
were evaluated for tolerance to soil acidity in a field experiment conducted at
the Michael Okpara University of Agriculture experimental farm Umudike. The
genotypes were collected from International Institute of Tropical Agriculture
(IlTA), Thadan. The genotypes included: SUWAN-I-SR, TZL Comp3C3, TZL Comp4C4,
TZU TSR- Y, ATP SR-Y, ATP SYN C5, ATP SYN Dilly, TZU TSR- W SGY, TZB- SR- SOY,
and the local check Bende white which was collected from Umuhia. The experiment
was laid out in a Randomized Complete Block Design (RCBD) and replicated three
times during the 2007 cropping season. The farm size was 180m2and each plot
measured l.5m x 4m. The spacing was 75cm between rows and 50 cm within rows.
Bende white had the highest ear height and at maturity was the tallest while
SUWAN- I- SR had the shortest ear height and also had the shortest plant height
at maturity. The }ighest number of leaves was recorded by the following
genotypes: ATP SYN C5, ATP SYN DillY, and TZ!J TSR -W SGY.SU WAN- I- SR and TZL
Comp4C4had the lowest number of leaves. SUWAN- 1- SR and ATP- SYN C5 had the
lowest number of fresh cobs while TZU TSR- W SGY had the highest fresh cob
weight. TZL comp.1C4 sulked earlier than the others while ATP SR- Y sulked
last. TZL Comp3C3had the highest grain yield while SUWAN-!- SR had the lowest
grain yield. The following genotypes TZL Comp3C3, TZL Comp4C4, ATP SR-Y, ATP
SYN Dill Y, TZU TSR-W SOY, and TZB-SR-SGY, that yielded above one tons per
hectare (it/ha) and were better than the check (Bende white) can be said to be
tolerant to the acid soils of Umudike. Results obtained showed that TZL
Comp3C3was significantly different (P< 0.05) from Bnde white in grain yield.
ENYINNAYA, J (2021). Evaluation Of Some Open-Pollinated Maize Genotypes In The Acid Soil Of Umudike In South Eastern Nigeria . Repository.mouau.edu.ng: Retrieved Dec 22, 2024, from https://repository.mouau.edu.ng/work/view/evaluation-of-some-open-pollinated-maize-genotypes-in-the-acid-soil-of-umudike-in-south-eastern-nigeria-7-2
J., ENYINNAYA. "Evaluation Of Some Open-Pollinated Maize Genotypes In The Acid Soil Of Umudike In South Eastern Nigeria " Repository.mouau.edu.ng. Repository.mouau.edu.ng, 15 Jul. 2021, https://repository.mouau.edu.ng/work/view/evaluation-of-some-open-pollinated-maize-genotypes-in-the-acid-soil-of-umudike-in-south-eastern-nigeria-7-2. Accessed 22 Dec. 2024.
J., ENYINNAYA. "Evaluation Of Some Open-Pollinated Maize Genotypes In The Acid Soil Of Umudike In South Eastern Nigeria ". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 15 Jul. 2021. Web. 22 Dec. 2024. < https://repository.mouau.edu.ng/work/view/evaluation-of-some-open-pollinated-maize-genotypes-in-the-acid-soil-of-umudike-in-south-eastern-nigeria-7-2 >.
J., ENYINNAYA. "Evaluation Of Some Open-Pollinated Maize Genotypes In The Acid Soil Of Umudike In South Eastern Nigeria " Repository.mouau.edu.ng (2021). Accessed 22 Dec. 2024. https://repository.mouau.edu.ng/work/view/evaluation-of-some-open-pollinated-maize-genotypes-in-the-acid-soil-of-umudike-in-south-eastern-nigeria-7-2