Effect of Sowing Dates on Growth and Grain Yield of Maize Inbred Lines

2016 ◽  
Vol 3 (4) ◽  
Author(s):  
KAMAL BHUSAL ◽  
ROSHAN SUBEDI ◽  
JIBAN SHRESTHA
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Winter Season ◽  
Inbred Lines ◽  
Growth And Yield ◽  
Planting Dates ◽  
Maize Inbred Lines ◽  
Yield Production ◽  
Sowing Dates ◽  
Randomized Complete Block Design

This study was carried out at National Maize Research Program, Rampur, Chitwan, Nepal to evaluate the effect of sowing dates on growth and grain yield of maize inbred lines. Seven maize inbred lines namely NML-2, RML-17, RML-32, RML-4, RML-86, RML-95 and RML-96 were planted on three different dates i.e. September 02, September 12, September 22, 2015 during winter using randomized complete block design with two replications. The results of this study showed that the growth and yield traits were significantly affected by various planting dates. The inbred line RML-17 produced the highest grain yield where as NML-2 gave the lowest yield during winter season. The highest yield was obtained when inbred lines were planted on September 12 and the lowest yield on September 2. The planting from September 2 to September 12 increased the grain yield. The delay in planting i.e. September 22 decreased grain yield. Therefore September 12 planting was suitable for inbred lines to maximize grain yield production.

scholarly journals Short communication: Heterosis and combining ability of Nepalese yellow maize (Zea mays L.)

2013 ◽  
Vol 3 ◽  
pp. 172-180 ◽  
Author(s):  
SR Gautam ◽  
BR Ojha ◽  
SK Ghimire ◽  
DB Gurung
Keyword(s):  
Grain Yield ◽  
Combining Ability ◽  
Quantitative Traits ◽  
Short Communication ◽  
Zea Mays L ◽  
Block Design ◽  
Winter Season ◽  
Inbred Lines ◽  
High Magnitude ◽  
Randomized Complete Block Design

Nepalese yellow maize inbred lines were characterized for general combining ability (GCA) and specific combining ability (SCA) of their crosses and parents were identified having high combining ability for determining the heterotic effects on yield and other quantitative traits of hybrids. A line x tester mating design was used for making the crosses in the winter season of 2008 and the hybrids along with their parents and four checks were evaluated in Randomized Complete Block Design (RCBD) with three replications in the spring season of 2009 at the experimental farm of the National Maize Research Program, Chitwan. Significant variations were found among the treatments for grain yield and other traits which indicated presence of high magnitude of genetic variations among tested inbred lines. The cross between RML-32 and RML-17 produced the highest grain yield (15870 kg/ha) among the crosses. Hybrids such as RL-194 x RL-84 (10770 kg/ha), RML-21 x RML-17 (9270 kg/ha), RL-180 x RML-17 (9270 kg/ha) and L-1 x RL-84 (8785 kg/ha) were found superior grain yielder. Thirty-nine hybrids showed positive mid-parent heterosis for grain yield among 40 crosses. The highest positive mid-parent heterosis for grain yield was found 880% in cross between RML-32 and RML-17, followed by RL-98X RML-17 (507%), RL-103 x RML-17 (403%), PUTU-18 x RML- 17 (351%) and RL-180 x RL 84 (316%). Agronomy Journal of Nepal (Agron JN) Vol. 3. 2013, Page 172-180 DOI: http://dx.doi.org/10.3126/ajn.v3i0.9020

scholarly journals Effect of Azotobacter on Growth and Yield of Maize

2014 ◽  
Vol 11 (2) ◽  
pp. 141-147 ◽  
Author(s):  
Bandhu Raj Baral ◽  
Parbati Adhikari
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Winter Season ◽  
Fertilizer Application ◽  
Growth And Yield ◽  
Seed Inoculation ◽  
Randomized Complete Block Design ◽  
Maize Variety ◽  
Ear Height ◽  
1000 Grain Weight

A field experiment was conducted to study the effect of Azotobacter on growth and yield of maize (variety Rampur composite) at farmland of National Maize Research Program, Rampur, Chitwan, Nepal during the winter season of 2007-08 and 2008-09. The experiment was laid out in randomized complete block design with eight treatments each replicated three times. The treatments were control, 120:60:40 kg NP2O5K2O ha-1, Azotobacter seed inoculation, Azotobacter soil application, Azotobacter +10 t FYM ha-1, 10 t FYM ha-1, 120:60:40 kg NP2O5K2O ha-1 + Azotobacter, 120:60:40 kg NP2O5K2O ha-1 + Azotobacter + 10 t FYM ha-1. Analysis of variance showed that grain yield, plant height, ear height, ear length, kernel per rows and 1000 grain weight were significantly affected with treatments. Only inoculation of Azotobacter increased 15 to 35% grain yield over non inoculated treatments. The benefit of Azotobacter inoculation was higher in the absence of chemical fertilizer application. DOI: http://dx.doi.org/10.3329/sja.v11i2.18409 SAARC J. Agri., 11(2): 141-147 (2013)

scholarly journals Productivity of Maize Genotypes under Different Planting Dates

Our Nature ◽  
2015 ◽  
Vol 13 (1) ◽  
pp. 45-49 ◽  
Author(s):  
B.K. Santa Bahadur ◽  
Tika Bahadur Karki ◽  
Jiban Shrestha ◽  
Parbati Adhikari
Keyword(s):  
Grain Yield ◽  
Rainy Season ◽  
Block Design ◽  
Winter Season ◽  
Yield Potential ◽  
Spring Season ◽  
Production Potential ◽  
Planting Dates ◽  
Maize Genotypes ◽  
Randomized Complete Block Design

Genotypic yield potential of maize genotypes is greatly affected by planting dates. This study was conducted to determine optimum planting dates of maize genotypes in 2013/14 at Rampur, Chitwan, Nepal. Four genotypes namely RML-4/RML-17, RML-32/RML-17, ACROSS-9944/ACROSS-9942 and S99TLYQ-B were planted at every week from April  to March.  The experiments were laid out in randomized complete block design with four replications . The result of experiment showed that the highest production (5565 kg/ha) was obtained in August followed by February (5266 kg/ha), June (4475 kg/ha) and July (4255 kg/ha) respectively. The lowest yield (2572 kg/ha) was obtained in the month of November and December planting (3019 kg/ha). The highest grain yield was obtained in RML-4/RML-17 (7392 kg/ha) and RML-32/RML17 (6606 kg/ha), ACROSS- 9944/ACROSS-9942 (5004 kg/ha) during August planting and higher yield of QPM variety S99TLYQ-B was obtained in the month February planting. Winter maize has higher production potential than the rainy season maize. Based on this experiment RML-4/RML-17, RML-32/RML17 and ACROSS- 9944/ACROSS-9942 should be planting in August (winter season) and S99TLYQ-B in February (spring season) for higher grain yield production.Our Nature (2015), 13(1): 45-49

scholarly journals Evaluation of Planting Dates on Growth and Yield of Three Cowpea [Vigna unguiculata (L) Walp.] Genotypes in Northern Ghana

2019 ◽  
pp. 1-14
Author(s):  
M. S. Alidu
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Block Design ◽  
Growth And Yield ◽  
Flowering Plant ◽  
Northern Ghana ◽  
Factorial Experiments ◽  
Planting Dates ◽  
Significant Difference ◽  
Randomized Complete Block Design

Background: Time of planting has remarkable influence on both yield and yield components of crops and therefore identification of the appropriate planting time is essential for crop improvement. Aims: To assess the effect of planting dates on growth and yield of three cowpea genotypes. Study Design: The study was designed as 3×4 factorial experiments in a randomized complete block design. Place and Duration of Study: The study was carried in the field over a three-month period at the Savanna Agricultural Research Institute, Tamale-Northern Ghana. Methodology: The study was designed as 3×4 factorial experiments in split-plot in randomized complete block design. The genotypes were 3 genotypes with 4 planting dates. Treatment combinations were replicated three times. Results: Analysis of variance indicated significant effects on percentage germination, plant height at flowering, plant height at maturity and at harvest, pods per plant, pod yield and seeds per pod. Padi- tuya performed better than the other two genotypes in terms of performance for grain yield for all the planting dates. However, there were no significant difference between the first planting and second planting date. Conclusion: Padi-tuya was the most superior variety for grain yield. To achieve higher yields, cowpea should be planted between the middle of July and Early August. Early planting resulted in maturity coinciding with wet period resulting in reduction in quality of seeds. Late planting especially in late August resulted in poor yields.

scholarly journals Effect of Planting Dates on Growth and Yield of Four Cultivars of Wheat

2021 ◽  
Vol 923 (1) ◽  
pp. 012064
Author(s):  
Mahmood T. Al-Jayashi ◽  
Ali A.S. Hawal ◽  
Alyaa Muayad Adham
Keyword(s):  
Field Experiment ◽  
Grain Yield ◽  
Flag Leaf ◽  
Block Design ◽  
Planting Date ◽  
Growth And Yield ◽  
Research Station ◽  
Planting Dates ◽  
Randomized Complete Block Design ◽  
Experiment Method

Abstract A field experiment was applied at the research station in Al-Najmi district, Al-Muthanna governorate during the agricultural season 2020-2021, to determine evaluating several cultivars of wheat by changing the date of their cultivation. The experiment was applied using the split plot using the Randomized complete Block Design(RCBD) with three replicates experiment method, where the planting dates were occupied (1/11, 15/11, 1/12 and 12/15) the main plots, while the cultivars (Baghdad, Furat, Rashid, and Wafia) occupied the secondary plots and with three replicates. The results showed that the planting date (1/12) was superior to the number of days up to 75% of flowering, the number of spikes. m−2, and the grain yield ton. ha−1, which amounted to 109 days, 409.9 spikes and 5.77 tons, respectively. While the planting date (15/11) exceeded in both characteristics the leaf area and the number of grains in the spike, as it reached 46.18 cm and 49.78 grains. As for the cultivaries, the Baghdad cultivar surpassed in the characteristics of the area of the flag leaf, the number of fertile spikes, the number of grains per spike, and the grain yield, which reached 44.70 cm, 395.7 spikes.m−2, 48.38 grains, spike−1 and 6.16 tons.ha−1, respectively.

scholarly journals Partial diallel and genetic divergence analyses in maize inbred lines

2020 ◽  
Vol 43 ◽  
pp. e53540
Author(s):  
Maria Fernanda de Souza Dias Maioli ◽  
Ronald José Barth Pinto ◽  
Tereza Aparecida da Silva ◽  
Diego Ary Rizzardi ◽  
Robson Akira Matsuzaki ◽  
...  
Keyword(s):  
Grain Yield ◽  
Genetic Divergence ◽  
Block Design ◽  
Inbred Lines ◽  
Group Method ◽  
Arithmetic Average ◽  
Pair Group ◽  
Maize Inbred Lines ◽  
Randomized Block Design ◽  
Partial Diallel

In this study, we aimed to estimate general and specific combining abilities (GCA and SCA, respectively) and to verify genetic divergence (Rogers distance, Unweighted Pair-Group Method Using Arithmetic Average - UPGMA) using microsatellite markers in maize inbred lines. Using a partial diallel scheme, a total of 19 inbred lines were crossed as (9 x 10), which were derived from the single hybrids SG6015 and P30F53, respectively. The 90 hybrids were evaluated in an incomplete randomized block design with common checks and three replications during the 2017-2018 growing season. Flowering time, average plant height, ear height insertion, average ear diameter, ear length, number of lodged and broken plants, mass of 100 grains and grain yield were measured. According to the analysis of variance, GCA, and SCA were significant (p < 0.05) in all the measured traits; inbred line B as well as 1 and 8, derived from the single hybrids SG6015 and P30F53, respectively, were selected due to their higher GCA values in grain yield to be used in crosses as testers, while the single cross hybrid (B x 1) was selected due to their higher SCA value in grain yield to be used in future breeding programs. The molecular marker analysis divided the inbred lines into two groups, where the highest dissimilarity (0.74) was observed between lines A and 9; however, these did not result in a high SCA value, therefore the hybrids obtained by such crossings were not selected for grain yield.

scholarly journals Nutrient management on the growth and yield of black cumin (Nigella sativa L.)

2018 ◽  
Vol 43 (2) ◽  
pp. 205-210
Author(s):  
MN Yousuf ◽  
AJMS Karim ◽  
ARM Solaiman ◽  
MS Islam ◽  
M Zakaria
Keyword(s):  
Seed Yield ◽  
Nutrient Management ◽  
Nigella Sativa ◽  
Block Design ◽  
Winter Season ◽  
Research Field ◽  
Growth And Yield ◽  
Black Cumin ◽  
Randomized Complete Block Design ◽  
Positive Effect

A field experiment was carried out at the research field of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, during rabi (winter) season of 2016-17 to evaluate the effects of fertilizer treatments on black cumin (BARI Kalozira-1). The field belongs to Shallow red-brown terrace soil of Salna series under AEZ-28 (Madhupur Tract). The experiment was laid out in randomized complete block design (RCBD) with three replications. Results showed that the application of nutrient elements had positive effect on plant height, branches per plant, capsule setting, umbels per plant, capsules per plant, capsule size, seeds per capsule, 1000-seed weight and seed yield of black cumin. The highest seed yield (1277 kg ha-1) was obtained from 75% RDCF + 25% cowdung-N treatment followed by 100% RDCF (N80P45K50S20Zn5B2 kg ha-1) and the lowest seed yield (420 kg ha-1) was recorded with 50% RDCF. Thus, the IPNS treatment 75% RDCF + 25% cowdung-N appeared to be the best suitable package for black cumin cultivation in this location.Bangladesh J. Agril. Res. 43(2): 205-210, June 2018

scholarly journals THE EFFECT OF MOWING DATES AND DIFFERENT NITROGEN LEVELS ON YIELD CHARACTERISTICS OF BARLEY (HORDEUM VULGARE L.)

2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
Mohammed Salim Talib ◽  
Hasan Najim. Mansoor ◽  
Hayder Hilal abbas AL-Khafaji ◽  
Hayder Hilal abbas AL-Khafaji ◽  
Hayder Hilal abbas AL-Khafaji ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Grain Yield ◽  
Block Design ◽  
Winter Season ◽  
Hordeum Vulgare L ◽  
Nitrogen Levels ◽  
Randomized Complete Block Design ◽  
Green Fodder ◽  
Biological Yield ◽  
Nitrogen Percentage

A field experiment was carried out during the winter season 2014/2015 in one of the fields of Abi Gharq district, located 10 km west of the Babylon governorate. The randomized complete block design was used under split-plots arrangement with three replications. The main plots were included levels of nitrogen fertilizer (without fertilizer, 50, 100, 150 N, 200, 250 kg). while the sub-plots were included (without a mower, a mower after 45 days, a mower after 65 days, a mower after 85 days) after planting, The data were taken and analyzed according to the used design and the averages were tested according to the LSD test, and the results were summarized as follows: The date of mowing C1 (mower after 45 days of planting) was significantly higher by giving the highest average for the degree of fallowness and the index of harvest, and the percentage of nitrogen in the green fodder was 3.647, 37.63% and 1.837%, respectively. Treatment C0 (without mower) outperformed significantly by giving it the highest average of biological yield, grain yield and nitrogen percentage in grains, as it gave 15,114 tons. H-1 and 5.73 tons. H-1 and 1.242%, respectively The fertilizer level N5 (250 kg N. H-1) gave the highest average of the degree of lying, biological yield, grain yield, nitrogen percentage in green fodder and nitrogen content in grains, as it gave 3.854% and 7.571 tons. H-1 and 6.20 tons. % And 1.397%, respectively, We conclude from the results of the study that lack of without cutting to a significant increase in the degree of resting, biological yield and grain yield, and we conclude that the high levels of nitrogen led to a significant increase in the degree of lying, biological yield, grain yield, and the proportion of nitrogen in green fodder and grains

scholarly journals Effects of planting dates on the growth and grain yield of two indigenous varieties of pearl millet (Pennisetum glaucum (L.) R.Br.) in a forest-savanna transition zone of Edo State, Nigeria

2019 ◽  
Vol 114 (2) ◽  
pp. 169
Author(s):  
Sunday Ebonka NWAJEI ◽  
Anthony Uhunomwan OMOREGIE ◽  
Felix Omonkeke OGEDEGBE
Keyword(s):  
Grain Yield ◽  
Pearl Millet ◽  
Pennisetum Glaucum ◽  
Block Design ◽  
Planting Dates ◽  
Reproductive Structures ◽  
Cropping Season ◽  
Randomized Complete Block Design ◽  
Edo State ◽  
June July

<p>Effects of planting dates on the growth and grain yield of two indigenous varieties of pearl millet was carried out at the Teaching and Research Farm, Ambrose Alli University, Ekpoma. The experiment was a 2 × 5 factorial scheme fitted into a randomized complete block design with the two varieties of pearl millet (‘Gero Bida’ and ‘Gero Badeggi’) and five planting dates (April, May, June, July and August) replicated three times. The results obtained showed that delays in planting date significantly reduced growth in pearl millet examined. Similar pattern was observed on days to 50 % flowering and grain maturity. Improved growth with early sowing could have allowed increased availability of assimilates that later supported reproductive growth. These assimilates were remobilized under unfavourable climatic condition in the late cropping season to the reproductive structures. ‘Gero Badeggi’ sown in April, had significantly, the highest growth in the measured characters than ‘Gero Bida’ sown in August and other dates. ‘Gero Badeggi’ planted in May had the highest total grain yield (9.33 t ha<sup>-1</sup>) while ‘Gero Bida’ planted in July had the smallest (4.27 t ha<sup>-1</sup>). Therefore, ‘Gero Baddegi’ planted in May is a better variety for pearl millet grain production in Ekpoma.</p>

Response of potassium nitrate on yield and yield contributing characters of boro rice cv. BRRI dhan28

2020 ◽  
Vol 01 (01) ◽  
pp. 05-13
Author(s):  
M. Hasan ◽  
M. B. Akter ◽  
M. M. Karim ◽  
F. Yasmine ◽  
A. K. Hasan
Keyword(s):  
Grain Yield ◽  
Foliar Application ◽  
Block Design ◽  
Foliar Spray ◽  
Potassium Nitrate ◽  
Growth And Yield ◽  
Growth Stages ◽  
Yield Production ◽  
Initiation Stage ◽  
Boro Rice

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, to explore the growth and yield performance of boro rice cv. BRRI dhan28 is influenced by foliar spray of potassium nitrate (KNO3) at four rice growth stages. The experiment consisted of four doses of KNO3 viz. 0 (Control), 0.25, 0.50 and 1.00 kg ha−1 and applied at four growth stages of rice development viz. at panicle initiation, at ear emergence, at anthesis period and at dough stage. This experiment was carried out in Randomized Complete Block Design (RCBD) with three replications with 10 m2 (4.0 m × 2.5 m) unit plot size and spacing between blocks and unit plots was 1 m and 0.5 m, respectively. Results revealed that foliar application of potassium nitrate at four growth stages significantly affected yield and yield contributing characters of BRRI dhan28. But most of the yield contributing characters did not differ significantly due to the interaction between potassium nitrate and stage of foliar spray. However, the foliar application of KNO3 @ 0.25 kg ha−1 showed the highest yield production (5.86 kg ha−1) while the lowest yield (4.85 kg ha−1) was found in control. Furthermore, better yield performances were recorded when the KNO3 was applied at panicle initiation stage rather than the other four growth stages. The total number of tillers, 1000–grain weight and grain yield, was higher with foliar spraying of a 0.25 kg ha−1 KNO3 at panicle initiation stage. From this experiment, it may be concluded that foliar application of KNO3 affected the yield performances of BRRI dhan28 and 0.25 kg ha−1 KNO3 produced the highest grain yield when applied at panicle initiation stage of boro rice.

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