scholarly journals Characterization of indigenous upland rice varieties for high yield potential and grain quality characters under rainfed conditions in Thailand

2020 ◽  
Vol 65 (2) ◽  
pp. 179-187
Author(s):  
Atit Phapumma ◽  
Tidarat Monkham ◽  
Sompong Chankaew ◽  
Wanwipa Kaewpradit ◽  
Pornthippa Harakotr ◽  
...  
Agronomy ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 454 ◽  
Author(s):  
Alejandro del Pozo ◽  
Iván Matus ◽  
Kurt Ruf ◽  
Dalma Castillo ◽  
Ana María Méndez-Espinoza ◽  
...  

In Chile, durum wheat is cultivated in high-yielding Mediterranean environments, therefore breeding programs have selected cultivars with high yield potential in addition to grain quality. The genetic progress in grain yield (GY) between 1964 and 2010 was 72.8 kg ha−1 per year. GY showed a positive and significant correlation with days to heading, kernels per unit ground area and thousand kernel weight. The gluten and protein content tended to decrease with the year of cultivar release. The correlation between the δ13C of kernels and GY was negative and significant (−0.62, p < 0.05, for all cultivars; and −0.97, p < 0.001, excluding the two oldest cultivars). The yield progress (genetic plus agronomic improvements) of a set of 40–46 advanced lines evaluated between 2006 and 2015 was 569 kg ha−1 per year. Unlike other Mediterranean agro-environments, a longer growing cycle together with taller plants seems to be related to the increase in the GY of Chilean durum wheat during recent decades.


2020 ◽  
Vol 18 (3) ◽  
pp. 175
Author(s):  
Jaenudin Kartahadimaja ◽  
Eka Erlinda Syuriani

Reduced productive rice fields to non-paddy fields, most possible extension of the nationalrice cultivation area to the suboptimal lands reaching ± 91.9 million ha. Technologypackages that can be applied include the use of new improved rice varieties through theassembling of varieties that have high yield potential, resistant to suboptimal soil stress. Theobjective of the research is to produce new superior rice varieties that are available invarious environments. The study used a split-plot design, as the main plot is an environmentconsisting of rice paddies and gogo, as a subplot is the genotype of rice. The treatment ineach environment is prepared using the Randomized Complete Block Design (RCBD). Thetreatment consisted of 10 new rice strains and four varieties as a comparison. Variablesobserved (1) plant height; (2) the maximum number of shoots; (3) number of productiveshoots; (4) long panicle; (5) the number of grains per panicle; (6) the amount of graincontent of each panicle; (7) the number of empty grains per panicle; (8) weight of 1000grains of grain; (9) grain yield of each clump; (10) grain yield per hectare. Data wereanalyzed by variance if there was a difference between mean, median treatment, followed byLsd test at 5% level. The adaptability and yield stability of each strain was determined basedon the value of the coefficient of diversity (KK) (Francis and Kenneberg, 1978) in Syukur etal., (2012). The results showed that seven new rice strains had adaptations both planted asupland rice and lowland rice, namely strains B3, B4, F2, F3, H1, H4, and L2.


2013 ◽  
Vol 10 (1) ◽  
pp. 20-28
Author(s):  
MA Mannan ◽  
MSU Bhuiya ◽  
MIM Akhand ◽  
MM Rana

The experiment was conducted at the Bangladesh Rice Research Institute Farm, Gazipur, in boro season to determine the optimum planting date and to select the varieties having high yield potential. Traditional aromatic photoperiod sensitive fine rice varieties; Kalijira, Kataribhog, Chinigura and Badshabhog were transplanted from 10 December and continued up to 25 January, both in 2000 and 2001 years, at an interval of 15 days. Forty-day old seedlings were transplanted spaced at 20 cm x 20 cm. Results exhibited that plant tallness, number of tillers and dry matter increased with the advancement of planting dates. On the contrary, the number of panicles, grains panicle-1, panicle length, grain yield, straw yield and growth duration decreased with delaying of planting dates. The intermediate short stature plant type of Chinigura exhibited higher number of panicles (300-331 m-2) and comparatively heavier individual grain (12.25-12.31 g), consequently gave higher grain yield (2.79-3.53 t ha-1 ) planted with in December. However, in late planted situation in 10 January Kalijira exhibited higher number of panicles, grains panicle-1, resulted higher grain yield than the rest of the varieties. Thus, cultivation of traditional aromatic fine rice Chinigura and Kalijira have the potentiality to produced higher grain yield when planted in early December in Boro season. DOI: http://dx.doi.org/10.3329/jsf.v10i1.16275 J Sci Foundation, January-June 2012;10(1):20-28


2021 ◽  
Vol 124 ◽  
pp. 126242
Author(s):  
J.G. Adiele ◽  
A.G.T. Schut ◽  
R.P.M. van den Beuken ◽  
K.S. Ezui ◽  
P. Pypers ◽  
...  

2021 ◽  
Vol 306 ◽  
pp. 01033
Author(s):  
Yanto Surdianto ◽  
Bambang Sunandar ◽  
Kurnia ◽  
Nana Sutrisna

In developing new superior rice varieties, farmers’ preferences are important things to study and high yield potential. The study aimed to obtain new superior varieties of adaptive rice based on plant growth and productivity performance and determine respondents’ preferences for the varieties studied. The study was conducted in rainfed rice fields, Majalengka Regency, West Java Province, from April to August 2020. The study used a randomized block with 6 treatments: Inpari 32 varieties, Inpari 39, Inpari 42, Inpari 43, Pajajaran, and Siliwangi, and repeated 5 times. The observed parameters consisted of: growth, yield components, and yields were analyzed by ANOVA followed by Duncan’s Multiple Range Test at a 5% level. The respondent’s preference test for grain and rice and organoleptic characters used a Likert scale and analyzed non-parametrically (Friedman test). The results showed that the Inpari 43 variety gave the highest yield. Still, farmers preferred the Inpari 32 variety to be developed because it has characters favored by farmers (respondents), namely short plant height, a large number of tillers, thin grain shape, white rice color, and fluffier rice taste.


2019 ◽  
Vol 7 (2) ◽  
pp. 96
Author(s):  
Idrus Hasmi ◽  
L. M. Zarwazi ◽  
Dukat Dukat

developed. This study aims to obtain optimum fertilization technology in several new high yielding rice varieties with high yield potential in new open fields. Research has been carried out in new openings in two locations, namely in West Kalimantan Province, with the criteria for new openings in the first location are new openings less than 5 years old and the second location is openings aged 5-10 years after opening. The study refers to a split plot design with 3 replications. The main plot is fertilization level consisting of (R1) Fertilizer dosage recommendations for new openings, (R2) PTT recommended dosage fertilizers, (R3) Fertilizer dosage way of farmers (local), as plots are (V1) Inpara 9, (V2) Inpari 22, (V3) Inpari 30. Research results show that in new openings of land aged <5 years, inpari 22 has a significant effect on the formation of panicles per clump and percent grains of contents while inpari 30 has an effect on increasing the weight of 1000 grains. In newly opened land of 5-10 years, inpari 22 had a significant effect on the formation of panicles per clump while inpari 30 had an effect on increasing percent grains of content and weight of 1000 grains. The dosage treatment with recommended fertilizer dosages for new openings and inpari 22 has a tendency to produce the highest MPD results in new openings with land age <5 years. The dosage treatment with the recommended PTT fertilizer dosage and inpari 30 variety has a tendency to produce the highest MPD results in new openings with a land age of 5-10 years.


2020 ◽  
Vol 20 ◽  
pp. 01007
Author(s):  
Izhar Khairullah

Tidal swampland at present and in the future is very strategic as one of the national food barns considering sloping of productive land. In South Kalimantan, for example, tidal swamp paddy fields are available which is quite large, but the most are still planted with local varieties. More than 70% of rice cultivation in the tidal swampland is planted with various local varieties. The existence of local rice varieties is inseparable from its adaptability and acceptability factors. Among local varieties that are popular and widely planted by farmers are Siam Saba and Siam Mutiara varieties. Siam Saba and Siam Mutiara were released as local-improved varieties. Both of these varieties have their respective advantages, both from the distribution of plant adaptation and the potential benefits of yield. Siam Saba variety is widespread in tidal swampland of acid sulfate soil types and soils that are seawater intrusion in the dry season (near the coast) with A/B overflow type, while Siam Mutiara in acid sulfate tidal paddy fields with B / C overflow type. Some of the advantages of Siam Saba compared to other local varieties are high yield potential of 4.70 t / ha, a large number of tillers, small and slender grain shape, white rice color, and amylose content of 81.69%. Whereas improved of Siam Mutiara is high yield potential of 4.80 t / ha, the color of clean yellow grain, the color of clear and translucent rice such as pearl, and amylose content of 48.88%. Both varieties showed uniform in growth, flowering time, and ripening simultaneously, in mature panicles with almost no green grains, and a high percentage of unfertile grains. Local rice cultivation technology (Siam Saba and Siam Mutiara) indigenous knowledge here includes seedbed, transplanting, land preparation, fertilizing, pest disease control, harvest, and post-harvest processing or yields carried out by indigenous farmers. This indigenous cultivation technology until now in tidal swamp paddy fields of South Kalimantan is still widely practiced by farmers, especially for ownership of narrow or limited rice fields. There were advantages and disadvantages of each in the practice of indigenous cultivation technology.


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


1970 ◽  
Vol 35 (1) ◽  
pp. 157-165 ◽  
Author(s):  
MA Mannan ◽  
MSU Bhuiya ◽  
HMA Hossain ◽  
MIM Akhand

The experiment was conducted with different Basmati rice varieties at the Bangladesh Rice Research Institute (BRRI) farm, Gazipur during 1999 and 2000 T.aman season. Four rice genotypes (Basmati PNR, Basmati 370, Basmati 375 and Basmati-D) were tested with 0, 25, 50, 75 and 100 kg N/ha to determine the optimum N level as well as to find out the genotype having high yield potential. The plant height, tiller number, number of panicles, panicle length, spikelet sterility and straw yield increased with the increase of nitrogen levels upto 75 kg N/ha. Maximum plant growth at the highest level of N caused lodging of plant which increased spikelet sterility and lower number of grains per panicle and ultimately decreased grain yield. Genotype Basmati PNR having dwarf plant characteristics performed well at higher level of nitrogen (100 kg N/ha), while other genotypes having medium plant height responded well at lower level of nitrogen (52-56 kg N/ha). Keywords: Basmati rice; nitrogen; aman season. DOI: 10.3329/bjar.v35i1.5877Bangladesh J. Agril. Res. 35(1) : 157-165, March 2010


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.


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