Effect of Plant Population on the Growth of Hybrid-Maize (Zea Mays L.) in The Northern Guinea Savanna of Nigeria

A field experiment was conducted on student instructional farm (SIF) of Chandra Shekhar AzadUniversity of Agriculture and Technology, Kanpur, U.P. during kharif season 2019 and 2020, the present experiment having 32 treatments replicated thrice in factorial randomized block design on same laid out at same location. Hybrid maize variety Pioneer 3377 was sown at 60 × 20 cm (row×plant) during both the years, Soil application of Zinc (5.0 kg) and Iron (10 kg) along with 2.5 tonne vermicompost ha-1 gave significant increase (except plant population) in plant population m-2 (9.23 & 9.26), Plant height (195cm & 198 cm), number of cobs plant-1 (1.80 & 1.82), number of cobs m-2 (18 & 18) over control during 2019 and 2020.

Download Full-text

INFLUENCE OF INCORPORATED LABLAB PLANTED AT VARIOUS SPACINGS ON PRODUCTIVITY OF MAIZE (ZEA MAYS L.) VARIETIES IN NORTHERN GUINEA SAVANNA ZONE OF NIGERIA

FUDMA Journal of Sciences ◽

10.33003/fjs-2020-0403-279 ◽

2020 ◽

Vol 4 (3) ◽

pp. 358-365

Author(s):

Aderemi Adesoji ◽

Noah Oyebamiji ◽

Ibrahim Abubakar

Keyword(s):

Zea Mays ◽

Grain Yield ◽

Zea Mays L ◽

Agricultural Research ◽

Block Design ◽

Lablab Purpureus ◽

Northern Guinea Savanna ◽

Guinea Savanna ◽

Savanna Zone ◽

Better Than

The study was conducted to evaluate the effect of incorporated lablab planted at various spacings on productivity of two maize (Zea mays L.) varieties in northern Guinea Savanna zone of Nigeria. Field experiment was carried out at the Research Farm of the Institute for Agricultural Research, Ahmadu Bello University, Zaria, Nigeria. The treatments consisted of two varieties of maize (SAMMAZ 28 and SAMMAZ 29) and six green manure lablab (Lablab purpureus) plant spacings viz. 25cm x 10cm, 25cm x 20cm, 25cm x 30cm, 50cm x 10cm, 50cm x 20cm and 50cm x 30cm. The experiment was laid out in a Randomized Complete Block Design (RCBD) in factorial arrangement and was replicated three times. SAMMAZ 29 performed significantly (P<0.05) better than SAMMAZ 28 on growth, yield components and grain yield (kg ha-1) of maize. Incorporation of lablab planted at various spacing significantly increased grain yield (kg ha-1) and all the maize parameters studied except cob diameter. In combined mean, incorporation of lablab planted at 25cm x 30cm significantly increased grain yield but at par with incorporation of lablab planted at spacing 50cm x 30cm. In combined mean, incorporation of lablab planted at 25cm x 30cm gave 18.2, 20.5, 18, 28.6 and 13.6% better grain yield than incorporation of lablab planted at spacings 25cm x 10cm, 25cm x 20cm, 50cm x10cm, 50cm x 20cm and 50cm x 30cm, respectively. Conclusively, incorporation of lablab planted at 25cm x 30cm was better than other spacings on SAMMAZ 29.

Download Full-text

HERBICIDES FOR FORAGE CORN NO-TILL SEEDED INTO CEREAL STUBBLE

Canadian Journal of Plant Science ◽

10.4141/cjps83-023 ◽

1983 ◽

Vol 63 (1) ◽

pp. 235-241 ◽

Cited By ~ 1

Author(s):

J. A. IVANY ◽

J. R. ENMAN

Keyword(s):

Zea Mays ◽

Weed Control ◽

Prince Edward Island ◽

Zea Mays L ◽

Crop Yields ◽

Taraxacum Officinale ◽

Plant Population ◽

No Till ◽

Herbicide Treatment ◽

Forage Yields

Forage corn (Zea mays L.) was grown successfully in Prince Edward Island by no-till planting the corn into standing cereal stubble 15–20 cm tall using a Buffalo no-till seeder. Planting with the slot-type shoe in a preliminary experiment in 1978 gave better forage yields than planting with a slice-type shoe mainly because of better plant population achieved. Subsequent experiments in 1979–1981 using the slot-type shoe to no-till plant corn in cereal stubble gave good forage yields when adequate weed control was provided with herbicide treatment. Best control of quackgrass (Agropyron repens L. Beauv.) and dandelion (Taraxacum officinale Weber) and crop yields was achieved with glyphosate + atrazine (1.5 + 2.5 kg a.i./ha) or amitrole + atrazine (3.4 + 2.5 kg a.i./ha) applied preemergence after seeding corn and before corn emergence. Control of quack grass and dandelion with glyphosate or amitrole used alone ranged from 71–80%, but paraquat alone did not provide any weed control. Addition of atrazine to paraquat, glyphosate, or amitrole gave improved control of quackgrass and dandelion and higher forage corn yields. Addition of 2.5 kg a.i./ha atrazine gave better results than use of 1.0 kg a.i./ha of atrazine.Key words: Forage corn, no-till seeding, glyphosate, atrazine, aminotriazole, paraquat

Download Full-text

Identification of Associations between SSR Markers and Quantitative Traits of Maize (Zea mays L.)

Agronomy ◽

10.3390/agronomy11010182 ◽

2021 ◽

Vol 11 (1) ◽

pp. 182

Author(s):

Jan Bocianowski ◽

Kamila Nowosad ◽

Barbara Wróbel ◽

Piotr Szulc

Keyword(s):

Zea Mays ◽

Ssr Markers ◽

Marker Assisted Selection ◽

Quantitative Traits ◽

Zea Mays L ◽

Fresh Weight ◽

Multiple Traits ◽

Good Tool ◽

Maize Varieties ◽

Hybrid Maize

Microsatellite or simple sequence repeat (SSR) markers have wide applicability for genetic analysis in crop plant improvement strategies. Marker-assisted selection is an important tool for plant breeders to increase the efficiency of a breeding process, especially for multigenic traits, highly influenced by the environment. In this paper, the relationships between SSR markers and 26 quantitative traits of hybrid maize varieties (Zea mays L.) were analyzed. Association analyses were performed based on 30 SSR primers in a set of thirteen hybrid maize varieties. A total of 112 SSR markers were detected in these genotypes. The number of alleles per locus ranged from 1 to 17, with the average number of alleles per locus equal to 3.7. The number of molecular markers associated with observed traits ranged from 1 (for the number of kernels in row, ears weight and fresh weight of one plant) to 14 (for damage of maize caused by P. nubilalis) in 2016 as well as from 1 (for soil plant analysis development—SPAD, the number of grains in ear and fresh weight of one plant) to 12 (for carotenoids content) in 2017. The sum of statistically significant associations between SSR markers and at least one trait was equal to one hundred sixty in 2016 as well as one hundred twenty-five in 2017. Marker trait associations (MTAs) were found on the basis of regression analysis. The proportion of the total phenotypic variances of individual traits explained by the marker ranged from 24.4% to 77.7% in the first year of study and from 24.3% to 77.9% in 2017. Twenty-two SSR markers performed a significant effect on at least one tested trait in both years of experiment. The three markers (phi021/4, phi036/3, and phi061/2) can be a good tool in marker-assisted selection because they allow simultaneous selection for multiple traits in both years of study, such as the number of kernels in row and the number of grains in ear (phi021/4), the number of plant after germination, the number of plants before harvest, and the number of ears (phi036/3), as well as moisture of grain and length of ears (phi061/2).

Download Full-text