College of Agriculture & Natural Resources

URI for this communityhttps://rps.wku.edu.et/handle/123456789/45803

College of Agriculture & Natural Resource

Browse

Filters

2023 - 20242

Settings

Subject: search.filters.subject.Cultivar

Search Results

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    RESPONSE OF MAIZE (Zea mays L.) HYBRIDS TO PLANT DENSITY IN NONO DISTRICT, WEST SHOWA ZONE, ETHIOPIA
    (wolkite university, 2023-03-01) ABERA WORKINEH SHEMETE
    To increase maize yield in a positive environment, it's important to suit the planting density and cultivar. Field research were carried out in 2021 under rain-fed conditions in Nono district of West Shewa zone in two locations (Silk Amba and Jiru Gemechu), to decide the effects of plant density levels on maize hybrids reproduction, growth, yield and yield components. The study included four maize hybrids (BH540, BH546, Damote and Limu) and three planting densities (44,444, 53333 and 67,667 plants ha−1 ) in a randomized complete block design in a factorial arrangement with 3 replications. Results revealed that location (Loc) had significantly (P ≤ 0.05) influenced most measured phenological, growth, yield and yield components of maize. Across environments hybrids significantly (P_< 0.05) affected all measured parameters. Planting density had additionally affected a few growth, yield and yield components of maize drastically . Across environments, the lowest grain yield (7.88 ha-1 ) was observed from BH540 (oldest hybrid). No significant yield increase observed beyond 53,333 plats ha-1 , and recommended to be the superior planting density for the maize hybrids included on this study in the district. Compared to the district's existing suggested planting density of 44,444 plants ha-1 , planting density of 53,333 plants ha-1 produced greater than nine quintals ha-1 yield advantage. At both locations, BH540 and BH546 both had comparable outcomes. On the other hand, Pioneer hybrids, Damote and Limu resulted the highest yield of 12 and 12.32 t ha-1 respectively at Silk Amba, whereas, at Jiru Gemechu, the highest yield was recorded from Limu (10.64 t ha-1 ) hybrid and was also corresponding to BH546 (9.31 t ha-1 ) and Damote (9.99 t ha-1 ) suggested differential response of hybrids in different environments as a result of Loc x H interaction. This study provided further evidence that the growth and yield of maize are significantly influenced via environment, genotype, plant population, and interactions. It also made the point that optimizing planting density to match the high-quality performing variety should be taken into account as new varieties are delivered and advocated particularly environments.
  • No Thumbnail Available
    Item
    EFFECT OF PLANTING DATES ON GROWTH AND YIELD OF MAIZE (Zea mays L.) VARIETIES AT EZHA DISTRICT, GURAGE ZONE, CENTRAL ETHIOPIA
    (wolkite university, 2024-06-03) DINO NASIR MOHAMED
    Planting dates is a critical factor in maize production decision-making, with implications for crop management, variety selection, and adaptation to changing environmental conditions. Afield experiment was conducted to study the effect of planting date on growth and yield of maize varieties. The experiment was conducted in Ezha district during the 2023 main cropping season. The treatments consisted of factorial combinations of four maize varieties (BH540, BH661, Shone, and Limu) and four planting dates (9-April, 19- April, 29-April, and 9-May) laid out in a Randomized Complete Block Design (RCBD) with three replications. The experiment's findings demonstrated that planting dates and varieties had a significant impact on most parameters examined. However, varieties had no effect on the number of days to anthesis and silking. The statistical analysis result revealed that, Limu variety interacted with the planting date of 9-April, resulted, the longest days to anthesis silking interval (11.67), the largest number of ears per plant (1.40), the highest thousand kernel weight (410), the highest above-ground dry biomass (13.93 kg ha-1 ), and the highest grain yield (6.71 t ha-1 ) of maize. Similarly, the planting date 9-May interacted with the same variety, resulted the longest days to anthesis silking interval (11.67). The variety Limu resulted in the highest days to maturity (170), ear length (16.63 cm), ear diameter (16.08 cm), and harvest index (43.92). Similarly, Variety BH661 resulted in the highest ear height (101.45), longest days to emergence (9.08 days), longest days to anthesis (95.58 days), and longest days to silking (103.17); beside, the highest plant height (238.97cm), and the highest number of rows per ear (16.40) recorded from variety shone. Conversely, the planting date of 9-April yielded the longest days to maturity (161.75), the highest number of kernels per row (35.56 cm), the highest ear height (84.93 cm), the longest ear length (17.61 cm), the longest ear diameter (17.74 cm), and the highest harvest index (42.05%). Likewise, the planting date of 9-May recorded the longest day to emergence (9.5), the longest day to anthesis (98.67), and the longest days to silking (107.83). Thus, based on the result, early planting on April 9 resulted in the highest grain yield (6.7 t ha-1 ) from the Limu variety, whereas the lowest grain yield (1.65 t ha-1 ) was recorded from the BH540 late planted on May 9. Therefore, variety Limu with early planting date (April 9) was recommended for maize production in the study area. However, the experiment was done only at one location and one season; therefore, it would have to be replicated across locations and seasons to get the best conclusive result and a sound full recommendation for a specific area in order to assure the findings of the current study