scholarly journals Observation of promising tungro resistant rice lines in West Sulawesi

2021 ◽  
Vol 911 (1) ◽  
pp. 012025
Author(s):  
Arif Muazam ◽  
Mansur ◽  
Sumarni Panikkai

Abstract Food needs, especially rice, are a priority for agricultural businesses in Indonesia. The development of the world population in general and Indonesia in particular encourages a rapid increase in rice productivity. So it is demanded to have variety of rice that is resistant to disease and has superior rice productivity. Efforts to increase rice yields can not be separated from the efforts of assembling new superior varieties that are disease resistant as well as high yield potential. One of the plant breeding activities is observation activities. To explore the potential of rice strains after the screening stage, it is necessary to evaluate the germplasm or selected rice strains so that genotype can be screened which gives a positive response to both biotic and abiotic stresses. Tungro disease is generally the main problem in efforts to increase rice productivity. Tungro disease can attack rice plants from seedlings, vegetative stadia leaves through the host of green aphrodisiacs (Nephotetix vieressens). In vulnerable rice and supportive environmental conditions, this disease can cause farmers to fail to harvest or ‘puso’. The use of resistant varieties is the most practical and economical ways of controlling tungro disease. The purpose of the study was to evaluate the resistance of the rice breeddings lines to tungro disease. The research was conducted during Planting Period II in 2019 in the endemic area of Tungro Kalukku, West Sulawesi. The genetic materials tested as many as 26 strains from the group of researcher germplasm of Tungro research station and resistant check varieties namely Inpari 36 and comparison production namely Ciherang. The results showed that the strains tested had a diversity of different resistances that showed varying responses to tungro disease. Rice breeddings the best from checker varieties Ciherang and Inpari 36 namely: Strains No.2, 10, 12, 16, and 19 can be recommended for used further testing.

1980 ◽  
Vol 60 (4) ◽  
pp. 1431-1433
Author(s):  
ROBERT I. WOLFE

Johnston, a six-rowed feed spring barley (Hordeum vulgare L.) was developed at the Agriculture Canada Research Station, Brandon, Manitoba from a cross involving Klondike, Bonanza and Nord. It has high yield potential across the Canadian prairies, particularly in parts of Alberta, resistance to scald (Rhynchosporium secalis), and excellent field leaf disease ratings.


1993 ◽  
Vol 73 (3) ◽  
pp. 839-841 ◽  
Author(s):  
E. O. Kenaschuk ◽  
K. Y. Rashid

AC Linora, a medium early-maturing oilseed flax (Linum usitatissimum L.), with high yield potential in both early and late seeding, was released by Agriculture Canada, Research Station, Morden, Manitoba, in 1991. The cultivar has high oil content and high oil quality. It is immune to North American races of rust caused by Melampsora lini (Ehrenb.) Lév. and moderately resistant to wilt caused by Fusarium oxysporum f. sp. lini. Key words: Flax, oilseed, Linum usitatissimum L., cultivar description


1970 ◽  
Vol 33 (3) ◽  
pp. 479-492 ◽  
Author(s):  
Rita Bisne ◽  
AK Sarawgi

India sub continent is a home for aromatic rice diversity. Land races and wild species possess immense potential of most valuable genes which can he effectively utilized in the present day breeding programmes to evolve miracle varieties in rice that possess not high yield potential and quality but also resistant to biotic and abiotic stresses. The present studies were carried out to characterize thirty two aromatic rice accessions of Badshah bhog group from IGKV, Raipur, Chhattisgarh germplasm. These germplasm accessions were evaluated for twenty-two morphological, six agronomical and eight quality characters. The specific genotypes B: 1340, B: 2039, B: 2495, B: 2816, B: 16930 B: 2354, B:1639, B:2094 were identified for quality and agronomical characteristics. These may be used in hybridization programme to achieve desired segregants for good grain quality with higher yield. Key Words: Morphological characters. quality characters, characterization in aromatic rice. doi:10.3329/bjar.v33i3.1607 Bangladesh J. Agril. Res. 33(3) : 479-492, September 2008


EDIS ◽  
2019 ◽  
Vol 2019 (1) ◽  
Author(s):  
Barry L. Tillman

FloRunTM ‘331’ peanut variety was developed by the University of Florida, Institute of Food and Agricultural Sciences, North Florida Research and Education Center near Marianna, Florida.  It was released in 2016 because it combines high yield potential with excellent disease tolerance. FloRunTM ‘331’ has a typical runner growth habit with a semi-prominent central stem and medium green foliage.  It has medium runner seed size with high oleic oil chemistry.


2019 ◽  
Vol 21 (1) ◽  
pp. 165 ◽  
Author(s):  
Dennis N. Lozada ◽  
Jayfred V. Godoy ◽  
Brian P. Ward ◽  
Arron H. Carter

Secondary traits from high-throughput phenotyping could be used to select for complex target traits to accelerate plant breeding and increase genetic gains. This study aimed to evaluate the potential of using spectral reflectance indices (SRI) for indirect selection of winter-wheat lines with high yield potential and to assess the effects of including secondary traits on the prediction accuracy for yield. A total of five SRIs were measured in a diversity panel, and F5 and doubled haploid wheat breeding populations planted between 2015 and 2018 in Lind and Pullman, WA. The winter-wheat panels were genotyped with 11,089 genotyping-by-sequencing derived markers. Spectral traits showed moderate to high phenotypic and genetic correlations, indicating their potential for indirect selection of lines with high yield potential. Inclusion of correlated spectral traits in genomic prediction models resulted in significant (p < 0.001) improvement in prediction accuracy for yield. Relatedness between training and test populations and heritability were among the principal factors affecting accuracy. Our results demonstrate the potential of using spectral indices as proxy measurements for selecting lines with increased yield potential and for improving prediction accuracy to increase genetic gains for complex traits in US Pacific Northwest winter wheat.


2000 ◽  
Vol 80 (4) ◽  
pp. 739-745 ◽  
Author(s):  
B. L. Duggan ◽  
D. R. Domitruk ◽  
D. B. Fowler

Crops produced in the semiarid environment of western Canada are subjected to variable and unpredictable periods of drought stress. The objective of this study was to determine the inter-relationships among yield components and grain yield of winter wheat (Triticum aestivum L) so that guidelines could be established for the production of cultivars with high yield potential and stability. Five hard red winter wheat genotypes were grown in 15 field trials conducted throughout Saskatchewan from 1989–1991. Although this study included genotypes with widely different yield potential and yield component arrangements, only small differences in grain yield occurred within trials under dryland conditions. High kernel number, through greater tillering, was shown to be an adaptation to low-stress conditions. The ability of winter wheat to produce large numbers of tillers was evident in the spring in all trials; however, this early season potential was not maintained due to extensive tiller die-back. Tiller die-back often meant that high yield potential genotypes became sink limiting with reduced ability to respond to subsequent improvements in growing season weather conditions. As tiller number increased under more favourable crop water conditions genetic limits in kernels spike−1 became more identified with yield potential. It is likely then, that tillering capacity per se is less important in winter wheat than the development of vigorous tillers with numerous large kernels spike−1. For example, the highest yielding genotype under dryland conditions was a breeding line, S86-808, which was able to maintain a greater sink capacity as a result of a higher number of larger kernels spike−1. It appears that without yield component compensation, a cultivar can be unresponsive to improved crop water conditions (stable) or it can have a high mean yield, but it cannot possess both characteristics. Key words: Triticum aestivum L., wheat, drought stress, kernel weight, kernel number, spike density, grain yield


2018 ◽  
Vol 98 (6) ◽  
pp. 1389-1391
Author(s):  
S. Torabi ◽  
B.T. Stirling ◽  
J. Kobler ◽  
M. Eskandari

OAC Bruton is an indeterminate large-seeded food-grade soybean [Glycine max (L.) Merr.] cultivar with high yield potential, high seed protein concentration, and resistance to soybean cyst nematode (SCN). OAC Bruton is developed and recommended for soybean growing areas in southwestern Ontario with 2950 or greater crop heat units. OAC Bruton is classified as a maturity group 1 (MG1) cultivar with a relative maturity of 1.8.


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