| dc.contributor.advisor | Prof. Md. Abul Kalam Azad | |
| dc.contributor.author | GUPTA, SHIBASIS | |
| dc.date.accessioned | 2022-04-23T06:57:43Z | |
| dc.date.available | 2022-04-23T06:57:43Z | |
| dc.date.issued | 2013-06 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/620 | |
| dc.description | Maize (Zea mays L.; 2n = 20) is one of the most important photo-insensitive, cross
pollinated cereal crop belong to the family Gramineae. It is one of the productive C4
plant with a high rate of photosynthetic activity and has the highest potential for
carbohydrate production per unit area per day. Maize is an important cereal crop
with high yield potential and the total production at world level has surpassed both
sorghum and pearl millet gaining a third place after wheat and rice. Maize (Zea mays
L.) is the third most important crop among the cereal crops grown also in
Bangladesh. Maize grain is gaining popularity in our country very quickly due to
huge demand, particularly for poultry feed industry. Besides, maize has diversified
uses as food and industrial raw materials. The demand for maize grain is increasing
every year due to its diversified use in bakery industry, poultry and fish farming. Its
grain can be used for the human consumption in the various ways such as corn meal,
fried grain and flour. This crop has much higher protein content than the other crop
is about 12%. (The Year Book of Agricultural Statistics of Bangladesh, 2009-10,
BBS.). | en_US |
| dc.description.abstract | Information about combining ability is important for making breeding strategies. A
5x5 half diallel cross between inbred lines of maize (Zea mays L.) with an evaluation
to estimate the genetic parameters were carried out at Hajee Mohammad Danesh
Science and Technology University, Dinajpur, Bangladesh, to study on Genetic
Evaluation of Hybrids in Relation to Their parents in Intraspecific Crosses in Maize.
The main objective of this study was to evaluate the yield contributing traits of F,
hybrids to 1 check variety and 5 inbred lines, based on a diallel cross (without
reciprocals) General Combining Ability (GCA) and Specific Combining Ability
(SCA). The components of the genetic variance were calculated using Griffing’s
formula (1956), method 2, mathematic model I. The highest value for yield per plant
(240.22g) was obtain from combination of the inbred lines P5xP6 where as
heterobeltosis was 110.51 and standard heterosis was 12.649, while the minimal
average value obtained for the hybrid combination was P1xP5 (142.11g). The
variation between the largest and the smallest yield per plant for the hybrid
combination was 98.11 g or 59%, but not significant at ANOVA test for the
combining ability of GCA and SCA effect. Again for the character of 100-grain yield
was found highest in the combination of P5xP6 (57.17g) including with
heterobeltosis was 30.79 and standard heterosis was 23.46 where as lowest value was
found in P1xP4 (30.7g). For this character, significantly positive heterosis was
desirable and hybrids were P1xP2 (F 1), P1xP4 (F 3), P1xP5 (F 4), P2xP3 (F 6),
P2xP4 (F 7), P2xP5 (F 8), P3xP5 (F 11), P3xP6 (F 12), P4xP5 (F 13) and P5xP6 (F
15) showed significantly positive heterosis over better parent where as only P5xP6
(F 15) showed positive heterosis over check variety. ANOVA’s test for the
combining ability of GCA and SCA effects were highly significant at the p < 0.05
and p< 0.01 level of probability, respectively. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR. | en_US |
| dc.subject | HYBRIDS IN RELATION TO THEIR PARENTS | en_US |
| dc.subject | Economic importance of Maize | en_US |
| dc.subject | Industrial Uses of Maize | en_US |
| dc.title | GENETIC EVALUATION OF HYBRIDS IN RELATION TO THEIR PARENTS IN INTRASPECIFIC CROSSES IN MAIZE (Zea mays L.) | en_US |
| dc.type | Thesis | en_US |
