A genic substitute for isolation in hybrid corn seed production

1953 ◽  
Vol 7 (4) ◽  
pp. 382-384 ◽  
Author(s):  
Oliver E. Nelson
Plant Disease ◽  
1997 ◽  
Vol 81 (4) ◽  
pp. 415-422 ◽  
Author(s):  
S. N. Wegulo ◽  
C. A. Martinson ◽  
J. M. Rivera-C. ◽  
F. W. Nutter

A model was used to determine the economic benefits of using fungicides to control foliar diseases of seed corn. The components of the model were (i) increased net return to the seed company from fungicide usage, (ii) increased income, based on a wholesale price of $30 per unit of 80,000 seeds and a premium of $2 per unit of medium-sized seed, and (iii) increased expenses, calculated as the sum of fungicide and fungicide application costs, cost of processing increased seed, and increased payment to the grower by the seed company. Increased payment to the grower was calculated as the product of increased seed yield (before separation into fractions), May futures price for no. 2 commercial corn on 1 March, and an average inbred production factor. Increased net return was calculated by subtracting increased expenses from increased income. Yield data were obtained from fungicide trial experiments in commercial hybrid corn seed production fields in Iowa from 1990 to 1993. Of 169 fungicide treatments applied, 64 and 79% were profitable to the seed company and to the grower, respectively. The results from this study indicate that fungicide usage in hybrid corn seed production can be economically beneficial.


2021 ◽  
Vol 911 (1) ◽  
pp. 012088
Author(s):  
Sarintang ◽  
Muh. Yasin ◽  
Amiruddin Syam ◽  
A. Adriani W ◽  
Muslimin

Abstract The development of agriculture through technological processes in the field of agriculture is a dynamic of society that results in certain changes in its socio-economic life. The changes that occur in the farming community of hybrid corn seed production include changes in social aspects and economic aspects. In an effort to increase the production and productivity of hybrid corn, quality seeds are needed. To obtain quality seeds, internal and external monitoring is required in accordance with the management of seed quality standards. In seed production, there are two obstacles that are often faced, including social constraints in setting planting distance and time isolation, roguing, and detasseling. Economic constraints are caused by limited capital owned by farmers and the marketing system that is tied to the rights of seed licensors. To anticipate the obstacles that arise in the farming community, the role of the government is needed to take various steps and policies that can support farmers in dealing with their problems. In this case, government support is highly expected in determining the mapping of the seed area so that it can guarantee the purity of the crop in seed production.


2020 ◽  
Vol 8 (1) ◽  
pp. 44
Author(s):  
Bahtiar Bahtiar ◽  
B Zanuddin ◽  
M Azrai

Corn seed breeders are indispensable in the supply of superior hybrid corn seeds.  Its ability to produce seeds is evaluated for their superiority compared to the production of corn grain yield. A study was conducted in Jatirogo District, Tuban Regency, East Java province in July to December 2019. Involving farmers cooperator implementing hybrid corn seed production in the area of 96 ha and non cooperator farmers who produce the corn grain yield in the same location.  We observed the variables:  cost of production, yield and farmers income. Data and information were analyzed by Benefit Cost Ratio (B/C) and Marginal Benefit Cost Ratio (MBCR). The results showed that farmers who produced hybrid corn seeds of Nasa-29 variety (cooperators) were able to produce 4.6 t/ha of wet cobs with an income of IDR. 19,470,000/ha, while farmers who produced   grain corn of 7.9 t/ha with an income of IDR. 15,943,000/ha.  MBCR analysis showed that, the switching is able to added the farmer income Rp.4,100 for every use cost Rp.1,000 as long as the seed procurement policy remains unchanged and related institutions continue to provide support.


2021 ◽  
Vol 911 (1) ◽  
pp. 012084
Author(s):  
Supratman Sirih ◽  
Wenny Tilaar ◽  
Sisilia Wanget ◽  
Jantje Pongo ◽  
Steivie Karouw ◽  
...  

Abstract The research was carried out on land belonging to the North Sulawesi Agricultural Technology Research Center located at the Agricultural Technology Research and Assessment Installation (IP2TP) Address Talawaan Bantik Village, Wori District, North Minahasa Regency in February 2021. This study aims to analyze the different effects of spray pollination treatment on the ratio female and male parents to increase hybrid corn seed production and to obtain the best pollination vs ratio between male and female parents in increasing hybrid seed productivity. This study uses a 2 x 4 Factorial Experimental Design where factor S consists of 2 levels and factor R consists of 4 levels in the RAK pattern, namely: Factor S = Pollination with 2 levels (S1 = Spray Pollination, S2 = Natural Pollination) and Factor R = Male to Female Planting Ratio (R1 = 4 female plants vs. 1 male plant, R2 = 5 female plants vs. 1 male plant, R3 = 6 female plants vs. 1 male plant, R4 = full female plants: solation of male plants) for each treatment repeated 3 times. Based on the analysis of interaction variance, spray pollination treatment at a planting ratio of 6 : 1 was able to increase the yield of hybrid corn seed production. The results of the 5% BNT further test showed the values obtained from observations of the number of rows filled with seeds, the number of seeds in a row, the weight of 10 cobs without husks and the weight of shelled 10 cobs in a row, namely, 12.1, 23.6, 1166.7, 867, 3.


2021 ◽  
Vol 2 ◽  
pp. 104-120
Author(s):  
Ketut Indrayana ◽  
Hesti Rahasia ◽  
Marthen P.Sirappa

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.


2021 ◽  
Vol 4 (3) ◽  
pp. 3758-3770
Author(s):  
Santiago Ruiz-Ramirez ◽  
Gabriel Sánchez-Cruz
Keyword(s):  

El Instituto Nacional de Investigaciones Forestales Agrícolas y Pecuarias (INIFAP), a través del Campo Experimental Centro Altos de Jalisco, realiza actividades de investigación y transferencia de tecnología, generando productos en beneficio del agro mexicano. Con los materiales liberados se ha logrado el fortalecimiento de empresas nacionales productoras de semilla, suministrando los parentales en categoría de registrada, para su seguimiento y multiplicación a Certificada, debido a esa vinculación, existe la necesidad de establecer programas de producción de semilla registrada de progenitores de maíz, durante los ciclos Otoño-Invierno, con el objetivo de cubrir dicha demanda. El uso de semilla mejorada de maíz, permite a los agricultores incrementar la producción y la productividad. Es por ello, que el INIFAP participa en la formación y liberación de híbridos de alto potencial de rendimiento y buenas características agronómicas para diferentes regiones agroecológicas del país.


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