Freezing Injury of Inbred and Hybrid Maize Seed 1

1949 ◽  
Vol 41 (12) ◽  
pp. 574-583 ◽  
Author(s):  
E. C. Rossman
Keyword(s):  
Freezing Injury ◽  
Maize Seed ◽  
Hybrid Maize

The effect of foliar and soil applied molybdenum treatments on the molybdenum concentration of maize grain

1976 ◽  
Vol 16 (82) ◽  
pp. 761 ◽  
Author(s):  
RG Weir ◽  
RK Nagle ◽  
JB Noonan ◽  
AGW Towner
Keyword(s):  
Grain Yield ◽  
Nitrogen Concentration ◽  
Maize Seed ◽  
Foliar Sprays ◽  
Maize Plants ◽  
Maize Grain ◽  
Hybrid Maize ◽  
Molybdenum Concentration

Soil and foliar treatments to raise the concentration of molybdenum in maize grain were compared. Both methods raised molybdenum concentrations in the grain and leaves, but the foliar sprays were more effective. Spraying when the maize plants were 80 cm tall increased the molybdenum concentration in the seed more than earlier spraying when the plants were only 30 cm tall. None of the treatments affected grain yield or the nitrogen concentration in the grain or leaves. Foliar sprays should allow a reduction in the rates of molybdenum now needed to maintain adequate levels in certified hybrid maize seed.

scholarly journals A Comparative Analysis of the Hybrid Maize (Zea mays L.) Seed Quality in China from 2013 to 2018

Agronomy ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 625
Author(s):  
Heqin Li ◽  
Haiwang Yue ◽  
Li Li ◽  
Chengfu Su ◽  
Xiaowen Zhang ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Seed Quality ◽  
Starch Content ◽  
Seedling Emergence ◽  
Principal Component ◽  
Germination Percentage ◽  
Seed Vigor ◽  
Maize Seed ◽  
The Past ◽  
Hybrid Maize

In this study, a comparative analysis of seed quality indicators of 1196 hybrid maize seed samples from the main maize-producing areas in China from 2013 to 2018 was carried out. The results showed that the maize seed quality in China had changed obviously in the past six years, and was mainly as follows: The percentage of samples with coated seed in 2015–2018 was higher than 62.8% in 2013 and all exceeded 97%; the sample rate of packaging according to seed number was from 24.5% in 2013 to 58.6% in 2018, and the percentage of samples which met the prescribed quality standards was from 89.2% in 2013 to 98.4% in 2018. Principal component analysis indicated that standard germination energy (SGE), standard germination percentage (SGP), cold test germination percentage (CTGP), accelerated aging test germination percentage (AATGP), and mean field seedling emergence (FSE) were the primary predictors of seed germination and seedling emergence. Meanwhile, combining other statistical methods, regression models of SGE, SGP, CTGP, and AATGP were established to predict the field seedling emergence. Furthermore, seed bulk density and total starch content were correlated with seed vigor, which needs to be further studied. This study offered a theoretical basis and data support to better understand the changes of maize quality in China over the past six years, and provided an important reference to further improve the maize seed quality in the future.

scholarly journals Profitability of Hybrid Maize (Zea mays L.) Seed Production Under Contract Farming in Bangladesh: A Farm Level Study

2012 ◽  
Vol 37 (2) ◽  
pp. 327-334 ◽  
Author(s):  
MA Haque ◽  
Monir Uz Zaman ◽  
MS Rahman ◽  
QM Alam
Keyword(s):  
Seed Production ◽  
Hybrid Seed ◽  
High Price ◽  
Cost Ratio ◽  
Hybrid Seed Production ◽  
Maize Seed ◽  
Private Company ◽  
Public Agency ◽  
Net Return ◽  
Hybrid Maize

The study was conducted with three catagories of seed producers, namely BADC farms at Dattanagar, Jhenaidah and Tabunia, Pabna as public agency, LAL TEER Seed Company in Lalmonirhat district as private company and BRAC farm in Bogra district as NGO during Rabi season of 2007-08 to know the present status and profitability of hybrid maize seed production. A total of 60 hybrid maize seed contract growers and 120 maize (Non-seed) growers were selected randomly for the study. The cost of production was found higher for NGO (Tk. 66472/ha) than the public agency (64836/ha) and private company (Tk. 59352/ha). The yield of hybrid seed was highest under NGO (3780 kg/ha) than that of public agency and private company. Net return of hybrid seed production for contract growers was higher under public agency (Tk. 78204/ha) compared to private company (Tk. 39088/ha) and NGO (Tk. 33246/ha). Benefit cost ratio (BCR) was higher for the contract growers of public agency (2.21) Net return of hybrid maize seed production was 50% higher than that of non-seed production. High price of seed and lack of technical knowledge were major constraints of hybrid maize seed production in the study areas. DOI: http://dx.doi.org/10.3329/bjar.v37i2.11237 Bangladesh J. Agril. Res. 37(2): 327-334, June 2012    

The impacts of hybrid maize seed on the welfare of farming households in Kenya

Food Policy ◽  
2014 ◽  
Vol 44 ◽  
pp. 262-271 ◽  
Author(s):  
Mary K. Mathenge ◽  
Melinda Smale ◽  
John Olwande
Keyword(s):  
Maize Seed ◽  
Hybrid Maize ◽  
Farming Households

Simulating kernel number under different water regimes using the Water-Flowering Model in hybrid maize seed production

2018 ◽  
Vol 209 ◽  
pp. 188-196 ◽  
Author(s):  
Jintao Wang ◽  
Shaozhong Kang ◽  
Xiaotao Zhang ◽  
Taisheng Du ◽  
Ling Tong ◽  
...  
Keyword(s):  
Seed Production ◽  
Maize Seed ◽  
Kernel Number ◽  
Water Regimes ◽  
Hybrid Maize

scholarly journals Effects of irrigation and nitrogen management on hybrid maize seed production in north-west China

2016 ◽  
Vol 3 (1) ◽  
pp. 55 ◽  
Author(s):  
Hui RAN ◽  
Shaozhong KANG ◽  
Fusheng LI ◽  
Ling TONG ◽  
Taisheng DU
Keyword(s):  
Seed Production ◽  
Nitrogen Management ◽  
Maize Seed ◽  
West China ◽  
North West ◽  
Hybrid Maize

scholarly journals Trait dispersion of hybrid maize seed under different production conditions

2018 ◽  
Vol 22 (2) ◽  
pp. 46-48
Author(s):  
Marijenka Tabaković ◽  
Rade Stanisavljević ◽  
Ratibor Štrbanović ◽  
Dobrivoj Poštić ◽  
Mile Sečanski
Keyword(s):  
Maize Seed ◽  
Hybrid Maize ◽  
Production Conditions

scholarly journals Analysis of Added Value of Nasa Hybrid Corn Seed Propagation 29 in Mamuju Regency

2021 ◽  
Vol 2 ◽  
pp. 104-120
Author(s):  
Ketut Indrayana ◽  
Hesti Rahasia ◽  
Marthen P.Sirappa
Keyword(s):  
Agricultural Research ◽  
Economic Benefits ◽  
Added Value ◽  
Yield Potential ◽  
Maize Seed ◽  
Hybrid Corn ◽  
Corn Seed ◽  
Maize Varieties ◽  
Seed Propagation ◽  
Hybrid Maize

Need  for corn is increasing, both for food, animal feed, and industrial raw materials. This is an opportunity as well as a challenge for the government in increasing corn production towards sustainable self-sufficiency. Superior varieties are one of the components that can significantly increase yield. Hybrid varieties have a higher yield potential than composites so that the use of hybrid corn seeds can increase the yield of corn per crop area. The Agricultural Research and Development Agency (Balitbangtan) has produced hybrid maize varieties with high yield potential, which are no less competitive with other private hybrid maize, but they are not well disseminated. In order to obtain added value for farmers and the development of Balitbangtan corn seeds, NASA 29's hybrid corn seed propagation was carried out at the farmer level. The study was carried out in Salukayu Village, Papalang District, Mamuju Regency in 2018 covering an area of ​​1 ha. The results showed that corn seeds were 1.5 tons / ha. The Nasa 29 hybrid maize seed propagation farm is economically feasible and profitable, as indicated by the R / C value of 2.35, TIP 637 kg / ha, TIH Rp. 10,623, - / kg and IK Rp. 88,985, / day. The study of the propagation of the NASA 29 hybrid maize seed was financially feasible and the economic benefits were high and efficient.

scholarly journals Quality assessment of hybrid maize seeds according to their shape and size

2021 ◽  
Vol 25 (1) ◽  
pp. 28-31
Author(s):  
Marijenka Tabaković ◽  
Violeta Oro ◽  
Rade Stanisavljević ◽  
Ratibor Štrbanović ◽  
Mile Sečanski
Keyword(s):  
Seed Mass ◽  
Coefficient Of Determination ◽  
Maize Seed ◽  
Seed Shape ◽  
Maize Seeds ◽  
Physiological Properties ◽  
Hybrid Maize ◽  
Mass Formation ◽  
Shape And Size

Maize seed is characterised by a variety of shapes and sizes, which directly or indirectly affect physiological properties. The aim of the present study was to establish the significance of the seed shape and size on the first count and germination. The following eight hybrids were used as a seed material in the trial: ZP196, ZP260, ZP341, ZP360, ZP434, ZP677, ZP684 and ZP704. The traits of seed shape and size were observed under laboratory conditions. The seed mass, the first count and germination were determined. The genotype and the seed fraction significantly affected the variance of seed mass formation, R2≥0,911, while the significance of these factors for the first count and germination was small with the coefficient of determination of R2≤0.129 and≤0.298, respectively. The first count and germination were high (above 95%) in all sizes and all shapes of seeds. The lowest first count and germination were detected in SO (94.2; 95.1, respectively), while the highest values were determined in SSP (97.1; 98.0, respectively). The importance of seed germination was determined by the analysis of variance (p<0.05).

Joint optimization of irrigation and planting pattern to guarantee seed quality, maximize yield, and save water in hybrid maize seed production

2020 ◽  
Vol 113 ◽  
pp. 125970 ◽  
Author(s):  
Jintao Wang ◽  
Shanshan Guo ◽  
Shaozhong Kang ◽  
Yufeng Wang ◽  
Taisheng Du ◽  
...  
Keyword(s):  
Seed Production ◽  
Seed Quality ◽  
Joint Optimization ◽  
Maize Seed ◽  
Planting Pattern ◽  
Hybrid Maize
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