scholarly journals Genetic Variability of Maize (Zea mays L.) Genotypes on Some Yield and Yield Components at Haramaya, Eastern Ethiopia

Author(s):  
Mekuannet Belay Kebede ◽  
Degefa Gebissa

Genetic improvement in components of economic importance along with maintaining a sufficient amount of variability is always the desired objective in the any maize (Zea mays L.) breeding program which will be handled under the conditions of Haramaya, Eastern Ethiopia. Therefore, an experiment was conducted using (27) and (3) check/control varieties to determine the genetic variability of maize genotypes at Haramaya, eastern Ethiopia. The study results revealed that significantly the tallest plant heights for (PH) were recorded from (3) (170 cm) and (18) (167.5 cm) genotypes whereas the shortest PH were recorded from (13) (117.5 cm) and (23) genotypes (120 cm). Good plant aspects (PA) were obtained from genotype 12, 22 and 26 (PA-1.5) and poor PA were attained from genotype 1 (PA-2.5). Besides, genetic and phenotypic variances were estimated for seven components. The highest genotypic coefficients variation (GCV) and phenotypic coefficients of variation (PCV) were calculated from grain yield (GY – 23.39%). Comparatively the higher GY were attained from the genotypes of 3, 9 and 12. It can be concluded that almost all components of the PCV are greater than the GCV. Superior selected genotypes are recommended to the researchers /breeders to develop disease resistant and high yielder varieties to increase maize production by farmers under Haramaya and other similar agroecologies.

Author(s):  
Sabina Nasseer ◽  
Zahida Rashid ◽  
Sabiya Bashir ◽  
Faisal Rasool Shabeena Majeed ◽  
Seerat- Un-Nisa ◽  
...  

Maize (Zea mays L.) is the third most important cereal crop after wheat and rice. Improving maize production is considered to be one of the most important strategies for food security in the developing countries. The farmers in Kandi areas usually grow their own saved seed which comprises of composites and landraces due to which maize production in the area suffers due to low productivity. Considering this scenario, a number of hybrids were developed in order to improve yield and productivity in order to enhance their income. Hence evaluating the performance of hybrid maize genotypes in terms of yield in specific agro ecology is very crucial for horizontal expansion. The study was aimed to conduct the preliminary evaluation of 12 maize hybrids to determine their grain yields. The hybrids were ranked according to their superiority in yield over check.


Heliyon ◽  
2021 ◽  
pp. e07939
Author(s):  
Bigul Thapa Magar ◽  
Subash Acharya ◽  
Bibek Gyawali ◽  
Kiran Timilsena ◽  
Jharana Upadhayaya ◽  
...  

2020 ◽  
Vol 5 (01) ◽  
pp. 45-49
Author(s):  
Ankit Kumar ◽  
Amit Tomar

The results revealed that parents namely, TSK-10, TSK-27, New Blue-II, Kurara and TSK-109 were found highly genetic diverse for days to 50% tasseling, days to 50% silking, days to 755 dry husk. The parents namely, TSK-109, Kurara, New Blue-II and TSK-10 were found highly genetic diverse for plant height (cm), cob height, number of cobs per plant and number of grains per cob. The parents namely, Kurara, TSK-109, TSK-10, New Blue-II and TSK-27 were found highly genetic diverse for shelling percentage, grain yield per plant, grain yield per cob and 100-grain weight.


Agrivet ◽  
2021 ◽  
Vol 24 (2) ◽  
Author(s):  
Shafri Yuranto ◽  
Basuki Basuki ◽  
Lagiman Lagiman

Maize (Zea mays L.) is one of crops that source of carbohydrate than rice. The maize production needs to production goal. The problems is traditional variety haved low yield. This study aims to determine the agronomic character and potential yield of several hybrids maize.. The research method used was randomized completely block design was repeated 3 times. The treatment factor namely hybrid maize genotype. The data obtained were analyzed in theirs diversities by using variace at 5 % level, if there were significant difference, continued by using the least significant increase at 5% level to compared of variety tester. The results shows that hybrid maize genotypes, G2KPW-43, G2KPW-45, and G2KPW-48 haved superiorities in agronomic character and higher potential yield.Key words: genotypes, potential yield, maize


Author(s):  
K. Sravanti ◽  
I. Swarnalatha Devi ◽  
M.R. Sudarshan ◽  
K. Supriya

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