scholarly journals The role of effluent water irrigation in the mineral absorption of aerobic rice varieties (Oryza sativa L.)

2020 ◽  
Author(s):  
Marks Ibadzade ◽  
Ágnes Kun ◽  
Árpád Székely ◽  
Tímea Szalóki ◽  
Károly Penksza ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
River Water ◽  
Irrigation Water ◽  
Oryza Sativa L ◽  
Rice Production ◽  
Water Bodies ◽  
Aerobic Rice ◽  
Rice Varieties ◽  
Lysimeter Experiment ◽  
The Impact

AbstractQuality and quantity of different irrigation water types from conventional and alternative sources have a significant role on the productive parameters and chemical composition of crop plants. Appropriate alternative water sources and the reutilization of agricultural effluents can reduce the impact of rice production and animal husbandry on the natural water bodies. In the present study, influence of four different types of irrigation water was analyzed on the nutrient uptake (P, K, Ca, Mg, Na) of aerobic rice (Oryza sativa L.) in a complex lysimeter experiment in two consecutive years. Early maturing Hungarian rice varieties (M 488 and Janka) were irrigated with traditional river water (RW) and different alternative irrigation sources to evaluate the feasibility of a sodium containing intensive fish farm effluent with (EWG) or without (EW) gypsum supplementation and with the addition of natural river water (EWGR). Significant effects on the mineral content of the aboveground biomass were measured. P uptake by M 488 and Janka decreased after the irrigation with EW in 2017. In case of EW, EWG and EWGR, the Na content increased significantly (p ≤ 0.05) in both varieties; however, pre-treatment of salt containing effluent waters can moderate the stress level. As a consequence, the ability of both rice varieties to absorb Na suggests that rice production could be conditionally part of bioremediation of salt-affected soils and water bodies.

scholarly journals Identification of fgr gene and preliminary evaluation for agronomic traits of pandan sticky rice variety (Oryza sativa L.)

2019 ◽  
Vol 02 ◽  
pp. 39-48
Author(s):  
Toan D. Pham
Keyword(s):  
Oryza Sativa ◽  
Agronomic Traits ◽  
Oryza Sativa L ◽  
Rice Variety ◽  
Rice Production ◽  
Molecular Techniques ◽  
High Yield ◽  
Preliminary Evaluation ◽  
Rice Varieties ◽  
Fgr Gene

Rice (Oryza sativa L.) is the most important food crop in Vietnam particularly in the Mekong Delta. Screening of good quality and high yield rice varieties are needed for rice production in Vietnam. The purpose of this study was to use molecular techniques to identify fgr gene and to evaluate preliminarily agronomic traits of pandan sticky rice variety. The results showed that this variety contained fgr gene. The fragrant allele was amplified by ESP - IFAP primers with a product of 255 bp in size. Similarly, evaluation of agronomic traits showed that the pandan sticky rice variety displayed many desirable characteristics such as plant height of 108 cm, panicle length of 25.6 cm, seed/panicle 135, 100-grain weight 2.07 g, pandan smell, level 2 of alkali digestion, gel consistency 93 mm. These results were useful information and could be applied for improving and providing pandan sticky rice variety for rice production.

scholarly journals Rice (Oryza sativa L) cultivation in the highest elevation of the world

2013 ◽  
Vol 2 ◽  
pp. 31-41 ◽  
Author(s):  
MN Paudel
Keyword(s):  
Oryza Sativa ◽  
Agricultural Research ◽  
Oryza Sativa L ◽  
Future Generation ◽  
Rice Cultivation ◽  
Temperate Region ◽  
Japonica Variety ◽  
Rice Varieties ◽  
The World ◽  
The Impact

Jumla is one of the 75 districts in the midwestern hills of Nepal. Rice (Oryza sativa L) cultivation in Jumla ranges from 2,400 to 3,050 m altitude, which is the highest elevation in the world. The highest elevation at 3,050 m is Chhumjul of Jumla, a record altitude, where rice is cultivated in Nepal. Jumli Marshi, a Japonica variety of indigenous rice, having cold tolerant gene, is probably cultivated since 1,300 years ago in Jumla in the bank of the Tila river. Improved rice varieties were tested in the Jumla valley by the Nepal Agricultural Research Council (NARC). In 2002, two improved rice varieties Chandannath-1 and Chandannath-3 were released for temperate region of Jumla and Karnali zone. Productivity of rice in Jumla is 1.7 mt/ha almost 40% lower than that of national average of 2.97 t/ha. Low productivity of rice is mainly due to the constraints of many biotic, abiotic and socio-economic factors. Food security in the food deficit region of the Karnali zone could be sustained by increasing rice productivity in the Jumla region where perennial irrigation is available round the year. Whole of the Jumla region is unique place with respect to rice cultivation in the highest altitude of the world. The practice of rice cultivation in Jumla could be a remarkable activity for boosting agro-tourism in the agrarian country like Nepal. Rice cultivation in Jumla is quite unique from the rice cultivation even in the same range of temperate region. Such a typical organic rice production system in the highest elevation of the world needs immediate attention of all institutions and authorities concerned to conserve it for the future generation as well. Jumla, the temperate region, is also affected by the impact of global warming thereby receding water level in the Tila river and its tributaries flowing in the Jumla valleys during rice growing season (March - October). Attempts have been made to document ethno-culture, socio-economic and cultural practices of rice cultivation in the highest elevation in the world. DOI: http://dx.doi.org/10.3126/ajn.v2i0.7519 Agronomy Journal of Nepal (Agron JN) Vol. 2: 2011 pp.31-41

scholarly journals Karakteristik Agronomis Tiga Varietas Padi (Oryza sativa L.) pada Dua Sistem Tanam Benih di Lahan Pasang Surut

2018 ◽  
Vol 46 (2) ◽  
pp. 140
Author(s):  
Haris Kriswantoro ◽  
Etty Safriyani ◽  
Purwaningsih , ◽  
Dan Siti Herlinda
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Rice Production ◽  
Direct Seeding ◽  
Type B ◽  
Rice Varieties ◽  
Main Plot ◽  
Agronomic Characteristic ◽  
Planting System ◽  
Plot Design

<p>ABSTRACT<br /><br />The efforts to develop and increase rice production in tidal land need appropriate technologies including adaptable superior varieties and efficient seed planting system. This study was aimed to measure the agronomic characteristic of the three rice varieties on the systems of in-row direct seeding and broadcast in tidal land. The experiment was carried out at type B of tidal land in Sidoharjo Village, Air Saleh Subdistrict, Banyuasin District, from January to April 2016. The experiment was conducted using split plot design with four replications. The main plot was seed planting system, consisted of in-row direct seeding system and broadcast system; whereas subplot was three rice varieties, consisted of  Inpari 22,  Inpara 4, and Ciherang.  Result of LSD test on interaction showed that though the best growth was obtained from the combination of Inpari 22 and in-row direct seeding and  very significant  with the others, but its yield was not significant with the combination of Inpara 4 and in-row direct seeding. It was concluded that Inpari 22 and Inpara 4 with in-row direct seeding system showed better growth and higher yield than Inpari 22, Inpara 4 and Ciherang with broadcast system in tidal lands. Ciherang was not suitable in tidal land, while Inpari 22 was suitable.<br /><br />Keywords: broadcast system, in-row direct seeding system, production</p>

scholarly journals Alokasi Biomassa pada Padi (Oryza sativa L.) Lokal Sulut Saat Kekurangan Air (Biomass Partitioning for North Sulawesi Local Rice (Oryza sativa L.) Cultivars under Water Deficit Condition)

2015 ◽  
Vol 5 (2) ◽  
Author(s):  
Song Ai Nio ◽  
Audry Agatha Lenak ◽  
Feky R Mantiri ◽  
Susan M Mambu ◽  
Daniel PM Ludong
Keyword(s):  
Oryza Sativa ◽  
Water Deficit ◽  
Biomass Allocation ◽  
Drought Resistance ◽  
Oryza Sativa L ◽  
Rice Production ◽  
Biomass Partitioning ◽  
Root:Shoot Ratio ◽  
Rice Varieties ◽  
North Sulawesi

ABSTRAK Salah satu masalah utama yang menjadi kendala dalam produksi padi di Indonesia adalah kekurangan air yang melanda areal persawahan sehingga menjadi suatu ancaman untuk produksi padi. Masalah tersebut dapat diatasi dengan beberapa cara dan salah satunya dapat dilakukan melalui strategi adaptasi. Oleh sebab itu kajian sifat tahan kering pada padi lokal Sulawesi Utara (Sulut) perlu dilakukan, dalam upaya mendukung tercapainya tujuan strategis tersebut. Penelitian ini dilakukan untuk mengevaluasi sifat tahan kering pada empat varietas padi lokal Sulut (Burungan, Superwin, Temo dan Ombong) pada fase vegetatif saat kekurangan air berdasarkan alokasi biomassa. Setelah 14 hari perlakuan, rasio akar:tajuk pada keempat varietas menunjukkan bahwa varietas Superwin, Temo dan Burungan yang tidak diairi air memiliki rasio akar:tajuk yang lebih besar daripada yang diairi. Berdasarkan alokasi biomassa, sifat tahan kering Superwin, Temo dan Ombong lebih besar dibandingkan dengan Burungan, sehingga varietas ini potensial untuk ditanam di daerah kekurangan air. Kata kunci: biomassa, kekeringan, padi lokal Sulut, vegetative ABSTRACT One of the main problems in rice production in Indonesia is the lack of water and this condition resulted in the decrease of rice production. The problem can be solved in several ways and one of them is adaptation strategies. This study was conducted to evaluate drought resistance in four North Sulawesi local rice varieties (Burungan, Superwin, Temo and Ombong) at the vegetative phase under water deficit based on biomass allocation. After 14 days of treatment, the root:shoot ratio of Superwin, Temo and Burungan under drought were greater than under well-watered condition. Based on the biomass allocation, the drought resistance of Superwin, Temo and Ombong were greater than Burungan, so that these varieties were  potential to be grown in the water deficit areas. Keywords: biomass, drought, North Sulawesi local rice, vegetative

The impact of iron plaque on La and Nd uptake and translocation in rice ( Oryza sativa L.)

2018 ◽  
Vol 38 (3) ◽  
pp. 210-215 ◽  
Author(s):  
Zhongjun Hu ◽  
Shulan Jin ◽  
Yizong Huang ◽  
Ying Hu ◽  
Wei Cheng ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Iron Plaque ◽  
The Impact

Effect of varieties and weeding regimes on weed and performance of

2011 ◽  
Vol 1 (3) ◽  
pp. 121-130
Author(s):  
U. Ismaila ◽  
M. G. Kolo ◽  
A. U. Gbanguba
Keyword(s):  
Oryza Sativa ◽  
Active Ingredient ◽  
Oryza Sativa L ◽  
Weed Suppression ◽  
Dichlorophenoxyacetic Acid ◽  
Aerobic Rice ◽  
Split Plot ◽  
Main Plot ◽  
And Performance ◽  
Plot Design

A Field trial was conducted at the aerobic rice experimental field of the NationalCereals Research Institute (NCRI), Badeggi, Nigeria (9 ° 04 N and 6° 7 E)in 2007 and 2008 wet seasons to determine the weed competitiveness andperformance of inter Ã¢â‚¬Â and intra‐specific aerobic rice (Oryza sativa L.) varietiesunder seven weeding regimes. The trial was laid out in a split plot designwith the two varieties of rice (NERICA 1 as inter Ã¢â‚¬Âspecific and FARO 46 asintra Ã¢â‚¬Âspecific) assigned to the main plot while seven weeding regimes (hoeweeding at 25, 45, and 65 days after sowing (DAS), 25 DAS, 45 DAS, 25 and45 DAS, application of 3’,3’ Ã¢â‚¬Â dichloropropionanilide /2, 4 – Dichlorophenoxyacetic acid (orizo plus R) by Candel Company Ltd. at 3.5 kg active ingredient(ai )ha Ã¢â‚¬Â1 at 25 DAS, hoe weeding at 25 DAS followed by orizo plus at 3.5 kg aiat 45 DAS and weedy check) constituted the sub – plots. The treatmentswere replicated three times in a split plot design. From the results, interspecificvariety (NERICA1) had better weed suppression ability with highergrain yield of 3.1 t ha Ã¢â‚¬Â1 than the intra‐specific variety (FARO 46). Weed controlwas better when hoe weeding was done at 25, 45 and 65 DAS or 25 and45 DAS and at 25 DAS followed by orizo plus at 45 DAS than in other treatments.However, hoe weeding at 25, 45 and 65 DAS gave significantlygreater grain yield than other treatments. Although economic yield was obtainedfrom hoe weeding at 25 DAS followed by orizo plus at 45 DAS.

scholarly journals Transfer of Arsenic from Groundwater and Paddy Soil to Rice (Oryza sativa L.) Grain: A Micro Level Study in Chandina, Comilla

2015 ◽  
Vol 12 (2) ◽  
pp. 74-82 ◽  
Author(s):  
Md. Habibur Rahman ◽  
Md. Mohashin Farazi ◽  
Kohinoor Begum ◽  
Md. Serazul Islam
Keyword(s):  
Oryza Sativa ◽  
Irrigation Water ◽  
Agricultural Soil ◽  
Oryza Sativa L ◽  
Arsenic Concentration ◽  
Dry Weight ◽  
Permissible Limit ◽  
Arsenic Content ◽  
Soil Arsenic ◽  
Micro Level

Rice (Oryza sativa L.) is one of the major food crops in many countries. As the cultivation of rice requires huge volume of water, long term use of Arsenic contaminated groundwater for irrigation may result in the increase of arsenic concentration in the agricultural soil and eventually accumulation in rice grains. A micro level study was conducted to investigate the transfer of arsenic from irrigation water and soil to rice plants in the arsenic affected 8 unions of Chandina upazilla, Comilla district. The level of arsenic in irrigation water (0.12±0.08 and 0.67±0.07 mg l-1) was much above the WHO permissible limit of 0.01 mg l-1 for drinking water and FAO permissible limit of 0.10 mg l-1 for irrigation water. The total soil arsenic concentrations ranged from 3.21±0.80 to 8.74±2.83 mg kg-1 dry weight of soil, which was below the maximum acceptable limit for agricultural soil of 20.0 mg kg-1 as recommended by the European Community. The accumulation of arsenic in the grain ranged from 0.12±0.04 to 0.58±0.06 mg kg-1 in Boro and 0.16±0.04 to 1.06±0.20 mg kg-1 in T. Aman. Except grain sample (T. Aman) of one union, the grains in both Boro and T. Aman of all unions did not exceed 1.0 mg kg-1 dry weight of arsenic (the permissible limit of arsenic in rice according to WHO recommendation). Thus, till now rice has remained harmless for consumption in the study area. The results clearly showed that the arsenic content in the grains of Boro rice is correlated to the intensity of arsenic contamination of irrigation water and soil. The Agriculturists 2014; 12(2) 74-82

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