Evaluating Performance of Maize hybrids in Terai Region of Nepal

Kunwar, Chitra Bahadur; Shrestha, Jiban

doi:10.12691/wjar-2-1-4

Cited by 8 publications

(5 citation statements)

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“…The mean ear position of different genotypes understudy was 52, which shows the position of the ear was appropriate and aids in higher grain yield. Positioning of the ear above the middle of the plants often leads to lodging (Kunwar & Shrestha, 2014). Plant breeders usually prefer genotypes with lower ear position as it minimizes the rate of root and shoot lodging that directly affects grain yield (Bello et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

“…The hybrid maize area, productivity, and seed replacement rate (15.3%) were below the targets set in Nepal's National Seed Vision, a policy document of the government (Gairhe et al, 2021). Thus, exploitation of heterosis can aid in doubling the current national average yield of maize (Kunwar & Shrestha, 2014) which can yield 25-30% more than better OPVs (Gairhe et al, 2021). Darwin and some naturalists recognized heterosis which can be defined as the superiority of the F1 hybrids over both the parents in terms of yield and some other characteristics (Kafle et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of single cross maize hybrids during the spring season in Khairahani, Chitwan, Nepal

Rai

Kulung

Bhandari

et al. 2022

J. Agric. Appl. Biol.

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The experiment was conducted at Khairahani-5, Chitwan, Nepal from 28th February to 20th June 2021. Twenty single cross maize hybrids were evaluated for quantitative and qualitative traits. The experiment was conducted in a randomized complete block design (RCBD) with three replications. Data were recorded on flowering traits, physiological and disease traits, agro-morphological traits, and yield and yield contributing traits. Analysis of variance showed significant differences in all traits except for root lodging, the number of plants per hectare, leaf senescence, and plant aspect. The result indicated that HGABS2-15-2-1B/RL174 had the shortest days to anthesis and silking. The genotype RML138/RML140 was found to have double cob. The longest cob was found in RML76/RML146 (17.3 cm), while the highest cob diameter was found in the Shrestha (5.1cm). The maximum number of grains per row was obtained from RML57/RL174, while the highest thousand-grain weight was obtained in RAMPUR HYBRID-10. Shrestha variety produced highest grain yield (9.954tha-1) followed by RML191/RML18 (9.41tha-1), CAH1715 (9.356tha-1) and RML4/RL111 (9.021tha-1). The traits with the highest broad-sense heritability were the number of rows per ear (79%), days to fifty percent silking (75%), days to fifty percent anthesis (72%), thousand-grain weight (70%), and grain yield (68%). Correlation studies suggested that the number of ears per hectare, cob length, and thousand-grain weight showed a positive and significant correlation with grain yield. Therefore, RML191/RML18, CAH1715, and RML4/RL111 showed better performance in terms of grain yield.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of single cross maize hybrids during the spring season in Khairahani, Chitwan, Nepal

Rai

Kulung

Bhandari

et al. 2022

J. Agric. Appl. Biol.

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“…This is probably due to genetic variation in plant height. Difference of plant height was found in different varieties which was due to the fact that the plant height is a genetically as well as environmentally controlled factor so the height of different varieties remain different, according to (Kunwar & Shrestha, 2014). 2020) who reported that signi cant variation is observed in leaf area index due to hybrid maize variety.…”

Section: Plant Heightmentioning

confidence: 99%

Varietal characterization of different hybrid variety of maize in Lamjung, Nepal

Sah,

yadav,

Ojha

2023

Preprint

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Lamjung is one of major maize producing region with limited availability of spring hybrid maize varieties. This research examine the performances of ten different hybrid varieties using Randomized Complete Block Design in spring season. The highest days to emergence of seedlings was in RAMPUR HYBRID-16 (9.67 days) and the lowest days to emergence was in RML145/RL197 (6.67 days). The highest plant germination percentage was in RML145/RL197 and PVAEQH-1 (50%) and the lowest plant germination percentage was in RAMPUR HYBRID-14 (27.22%). The plant height was significantly higher in RAMPUR HYBRID-12 (245.33 cm) followed by RML83/RML146 (136 cm) and lowest in PVAEQH-1(191.80 cm) whereas the leaf area index were significantly higher in RML145/RL197 (4.86). Phenological behavior like days to 50% tasseling (61 days) and silking (67 days) were significantly earlier in PVAEQH-1 and silking tasseling interval lower in RAMPUR HYBRID-14 (4.33 cm). Yield attributing characteristics like cob length higher in RAMPUR HYBRID-10 (19.267cm) and PVAEQH-1 (19.167 cm), cob diameter higher in CML491/CLWQHZN51 (5.148 cm) and RML145/RML2 (5.318 cm), number of rows/cobs was higher in RAMPUR HYBRID-16, CML491/CLWQHZN51, number of kernels/rows higher in CML491/CLWQHZN51, RML83/RML146. Shelling % was higher in RAMPUR HYBRID-10(69.64) and lower in RML83/RML146(57.81). Thousand grain weight were found significantly higher in CAH1511 (250.23 gm) followed by RAMPUR HYBRID-10 (231.77 gm), RML145/RL197(230.17 gm). Grain yield was significantly higher in RML145/RL197 (7.20 mt/ha) followed by RML83/RML146 (7.13 mt/ha), RML145/RML2(6.58mt/ha), PVAEQH-1(6.25mt/ha), RAMPUR HYBRID-10(6.11 mt/ha), CAH1511 (5.76 mt/ha), CML491/CLWQHZN51(5.68mt/ha), RAMPUR HYBRID-16(5.39mt/ha), RAMPUR HYBRID-12 (5.07 mt/ha)and lower in RAMPUR HYBRID-14 (3.95 mt/ha). The results indicated the among ten hybrid varieties RML145/RL197 and RML83/RML146 were high yielding so the farmers of mid hill specially in Lamjung can cultivate these varieties.

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“…Hybrid maize seed advertising and marketing is prospering every year however constrained commercial hy brids are perfect for cultivation as a result of the present diverse agro-ecological regime of the count (Sharma et al, 2016). The varietal options for the farmers for hybrid seeds are very limited (Kunwar & Shrestha, 2014), which is why this research was conducted to assign the farmers all suitable hybrids for the inner plains. The seed industries are slowly establishing and developing to provide the hybrid seeds for farmers.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Heritability and Correlation for Yield and Yield Attributing Traits in Single Cross Hybrids of Maize

Gautam¹,

Adhikari²,

Ale³

et al. 2022

IJEAB

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It is very important to study and understand the inter-relationships among the yield and yield attributing traits as well as heritability for the increased efficiency of the breeding programs. Thus, this research is meant to examine economic and biological performance and then measure the correlation between these traits and their heritability. A field experiment was performed in a Randomized Block layout with three replications, every assigned with fifteen treatments in Bharatpur, Chitwan. Effects confirmed considerable variants among all the found quantitative data. Days to tassel initiation were positively and significantly correlated with days to silking (0.83***), days to maturity (0.85**), and days to anthesis (0.87**). Thousand seed weight was significantly and positively correlated with shelling percentage (0.34*). Grain yield was significantly and positively correlated with cob length (0.32*) and number of grains per row (0.33*) whereas highly significant and positively correlated with circumference (0.43***). Traits like days to maturity (0.3), shelling percentage (0.3), and grain yield (0.6) exhibited moderate heritability while others exhibited low heritability. RL-294/CML-226 had the highest grain yield (7.7 t/ha) and grain per row (15.2) with medium performance for other characters. RML-57/RL-174 recorded the highest rows per cob (39.7), cob length (18cm), and shelling percentage (80%) whereas the lowest days to maturity (116.7 DAS) and fluctuating performance in others. Variety RML-86/RML-146 showed better consistent performance for all the traits with the third-highest grain yield (7.1 t/ha) except for shelling percentage (which was the lowest) and days to maturity (which was the longest). This depicts that the two varieties RL-294/CML-226 and RML-86/RML-146 have good possibilities for improvement and cultivation in that area.

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Evaluating Performance of Maize hybrids in Terai Region of Nepal

Cited by 8 publications

References 0 publications

Evaluation of single cross maize hybrids during the spring season in Khairahani, Chitwan, Nepal

Evaluation of single cross maize hybrids during the spring season in Khairahani, Chitwan, Nepal

Varietal characterization of different hybrid variety of maize in Lamjung, Nepal

Analysis of Heritability and Correlation for Yield and Yield Attributing Traits in Single Cross Hybrids of Maize

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