The analysis of trait inheritance of rice hybrid from the crossing of the upland rice sample “Kontro” with the productive rice variety “Kuboyar”

A study was conducted in farmer’s field through technology demonstrations during Kharif season of 2018 and 2019 in Subarnapur district of Odisha to recommend the most suited short duration drought tolerant upland rice variety particular to the locality. Six different varieties like Sahabhagi dhan, Mandakini, Jogesh, DRR-44, and DRR-42 & Khandagiri were taken with four replications in Randomized Block Design in both years. Technology demonstration included not only the improved short duration varieties, but also a package of good agronomic practices viz. line sowing, seed treatment with Bavistin, proper fertilization with dose @ 80:40:40 NPK/ha, pre emergence herbicide application with pretilachlor, needful manual weeding and need based plant protection chemicals. The results of demonstration showed that farmers could increase rice productivity notably by adopting improved variety Sahabhagi dhan and DRR-44. These varieties recorded higher grain yields of 64% and 46%, respectively, and fetched a sum return of Rs 25620 and Rs 25275 over farmers’ local variety Khandagiri.

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Response of some upland rice varieties to drought stress

Tropical Drylands ◽

10.13057/tropdrylands/t010202 ◽

2017 ◽

Vol 1 (2) ◽

pp. 69-77

Author(s):

EDI PURWANTO ◽

SAMANHUDI SAMANHUDI ◽

YONIAR EFFENDI

Keyword(s):

Drought Stress ◽

Stress Condition ◽

Upland Rice ◽

Rice Variety ◽

Dry Weight ◽

Grain Weight ◽

Rice Varieties ◽

Resistance Level ◽

Drought Stress Condition ◽

Four Levels

Purwanto E, Samanhudi, Yoniar Effendi Y. 2017. Response of some upland rice varieties to drought stress. Trop Drylands 1: 69-77. The study aimed to examine the response of upland rice varieties at germination stage on several PEG (Polyethylene Glycol) 6000 concentration levels and to determine growth characteristics, physiological changes and yield of upland rice varieties under drought stress condition in a pot experiment. The study consisted of two experiments; the first was to study germination and early growth, and the second was to study the vegetative and generative growth of upland rice under drought stress condition. Experiments I and II were conducted in a completely randomized factorial design consisted of two factors and three replications. In experiments I, the first factor was upland rice variety comprised of 10 varieties and the second factor was PEG concentration consisted of four levels. In experiment II, the first factor was upland rice varieties that responded the best to drought stress in experiment I, and the second factor was the drought stress treatment consisted of moisture content at 100, 75, 50 and 25% field capacity. The research was conducted at the Laboratory of Plant Physiology and Biotechnology and the greenhouse of Faculty of Agriculture, Sebelas Maret University (UNS) Surakarta. The results showed that the germination and vigor index decreased with increasing levels of PEG concentration. PEG concentration of 25 g L-1 of water was the most optimum for screening drought resistant upland rice. In experiment I, Towuti, Situ Patengang, Kalimutu and Gajah Mungkur varieties showed the best response to drought stress. Increased intensity of drought stress resulted in a reduction of plant height, number of tillers, dry weight, relative growth rate, leaf area, number of grains hill-1, 1000 grain weight, dry grain weight hill-1 and root dry weight. The drought stress also caused an earlier flowering date and increased percentage of empty grain. Based on the dry grain weight hill-1, Towuti exhibited a higher drought resistance level than Gajah Mungkur, Situ Patenggang and Kalimutu.

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Karakter Root Re-Growth Sebagai Parameter Toleransi Aluminium pada Tanaman Padi

Jurnal Natur Indonesia ◽

10.31258/jnat.13.1.82-88 ◽

2012 ◽

Vol 13 (1) ◽

pp. 82

Author(s):

Dewi Indriyani Roslim ◽

Miftahudin Miftahudin ◽

Utut Suharsono ◽

Hajrial Aswidinnoor ◽

Alex Hartana

Keyword(s):

Upland Rice ◽

Acid Soil ◽

Rice Variety ◽

Acid Soils ◽

Al Tolerance ◽

Rice Varieties ◽

Al Stress ◽

F2 Population ◽

Nutrient Culture ◽

Plant Breeding Program

Aluminum (Al) is one of the major limited factors in crop production on acid soils. Aluminum tolerant plants can beselected from plant breeding program by one of the physiological parameters representing Al tolerance character,such as root re-growth capability during recovery from the Al-stress. In this study we determined the concentrationand time exposure of Al stress that was able to differentiate the response of three local upland rice varieties(Grogol, Hawarabunar and Krowal) and an Al-sensitive rice variety (IR64) to Al-stress, and evaluated the effectivenessof root re-growth (RRG) characters as an Al tolerance parameter in rice. The study consisted of three experiments,which were 1) nutrient culture experiment with different Al concentration treatments in growth chamber, 2) potexperiment in greenhouse using Jasinga yellow red podzolic acid soil containing 26,66 me/100 g Al and pH 4,6 asplanting media, and 3) phenotyping of F2 population using RRG character. The results showed that Al treatment at15 ppm for 72 h was able to distinctly differentiate between Al-tolerant (Grogol and Hawarabunar) and Al-sensitivevarieties (Krowal and IR64). Planting of the rice varieties on acid soils showed similar result as that of the nutrientculture. Phenotyping of F2 population using RRG character indicated the existence of RRG value variation. Thesevariations demonstrated that RRG character can be used as an Al tolerance parameter in rice and therefore can beeffectively applied to screen rice F2 population that segregate to Al tolerance character.

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Pengaruh Sistem Intercrop Padi Gogo - Rumput Terhadap Pertumbuhan Dan Hasil Padi Gogo

Agrologia ◽

10.30598/a.v3i2.252 ◽

2018 ◽

Vol 3 (2) ◽

Author(s):

Yugi R Ahadiyat ◽

T Harjoso ◽

Ismangil Ismangil

Keyword(s):

Water Content ◽

Soil Water ◽

Soil Water Content ◽

Upland Rice ◽

Rice Variety ◽

Growth And Yield ◽

High Yield ◽

Elephant Grass ◽

Rice Varieties ◽

Main Plot

The objective of this study was to determine characters of several drought tolerance and high yield upland rice variety under low soil water content in intercrops rice – grass system. The study was carried out in rain water irrigation area of Banjaranyar village. Experimental design was Split Plot Design with three replicates. The Main plot was grass i.e no grass, elephant grass and lemon grass while sub plot was upland rice variety i.e. Situ Patenggang, Kalimutu, Danau Gaung, Jatiluhur dan Cisokan. Under very low soil water content (<12%), there was growth and yield differenc between rice varieties grown in intercrops system with grass. Eventhough there was no effect of this intercrop system on plant growth of upland rice, elephant grass promote higher rice yield, 0.88 t/ha than that without grass (0.39 t/ha) and with lemongrass (0.60 t/ha). Kalimutu variety showed the higher yield (1.38 t/ha) with plant height up to 46.27 cm and leaf area up to 4.63 cm2.

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Comparison of the F2 and F3 traits’ inheritance by the rice hybrid ‘Kontro x Kuboyar’

Grain Economy of Russia ◽

10.31367/2079-8725-2021-75-3-8-14 ◽

2021 ◽

pp. 8-14

Author(s):

P. I. Kostylev ◽

A. V. Aksenov ◽

Е. V. Krasnova

Keyword(s):

Quantitative Traits ◽

Agricultural Research ◽

Upland Rice ◽

Kernel Weight ◽

Panicle Length ◽

Rice Varieties ◽

Partial Dominance ◽

Kernel Length ◽

Rice Hybrid ◽

Negative Dominance

Rice is a very moisture-loving crop, therefore it suffers greatly from drought. However, in the world in recent years, there is an increasing shortage of fresh water, which makes the use of upland rice relevant. Therefore, rice varieties with a reduced demand for water supply, developed as a result of breeding work, are more profitable for agricultural producers than agrotechnical or reclamation measures. It is much cheaper to produce such rice with periodic irrigation. The purpose of the current study was to analyze genetically the main quantitative traits of the rice hybrid ‘Kontro x Kuboyar’ with the selection of the best forms for subsequent breeding for drought resistance. The study was carried out in 2019–2020 on the rice plots of the special subdivision ‘Proletarskoye’ belonging to of the Agricultural Research Center “Donskoy” in the Rostov Region. In the course of the study there has been made a genetic analysis of a number of quantitative traits that determine rice productivity. The character of traits’ inheritance in the second and third generations was identical. The inheritance of the trait ‘panicle length’ was characterized by partial negative dominance and monogenic differences in parental varieties. The trait ‘number of spikelets per panicle’ was inherited according to the type of negative dominance of smaller values of the trait and was determined by the interaction of two pairs of genes. The trait ‘1000-kernel weight’ was identified by the partial dominance of large values of the trait and monogenic differences in the parental varieties. The traits ‘kernel length’ and ‘kernel width’ were split according to the monohybrid scheme 1:2:1, and there was no dominance. From the third generation, the best early-maturing forms with optimal values of the traits ‘plant height’, ‘panicle length’, ‘1000-kernel weight’ and ‘the best kernel percentage per panicle’ were selected for the subsequent breeding of drought-resistant rice varieties.

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Screening and evaluation of upland rice (Oryza sativa L.) varieties in inundated soil

Agricultura tropica et subtropica ◽

10.2478/ats-2018-0007 ◽

2018 ◽

Vol 51 (2) ◽

pp. 63-69

Author(s):

Sunday Ojo Adigbo ◽

Philip Joseph Osadebay ◽

Innocent Iseghohi ◽

Cornelius Idowu Alarima ◽

Nnennaya Ogechi Agbenin ◽

...

Keyword(s):

Upland Rice ◽

Oryza Sativa L ◽

Rice Variety ◽

Rice Varieties ◽

Inland Valley ◽

Short Period ◽

Maturity Period ◽

Vigorous Growth ◽

Number Of Leaves ◽

Screen House

Abstract Poor germination and subsequent low grain yield of dry seeded upland rice in the existing anaerobic and short niche between lowland rice and dry season crops in the inland valley necessitate the screening of 19 rice varieties. The identification of vigorous growth and short duration upland rice variety in anaerobic condition would optimize this niche. The potted experiment was carried out in the screen house of the Department of Crop Science and Horticulture, Federal University Oye-Ekiti, Ikole campus in 2015 to screen and evaluate the performance of upland rice varieties in inundated soils with a view to selecting the suitable variety or varieties that will fit into the existing niche in the inland valley. The experiment was laid in a complete randomization design and replicated three times. The number of leaves, biomass and grain weight plant−1 of the varieties were significantly (P ≤ 0.05 %) different. The number of tillers observed in WAB 56-104, NERICA 4, NERICA 6, NERICA 3, NERICA 5, NERICA 10, NERICA 9, ARICA 4 NERICA 1, FARO 63, FARO 65 and NERICA 8 varieties were significantly (P < 0.05) lower than those of Igbemo varieties. The numbers of days to 50 % flowering of NERICA 1, NERICA 2, NERICA 10, NERICA 5, NERICA 9, NERICA 3, NERICA 7, NERICA 8, ARICA 4 and WAB 56-104 varieties were the lowest. Although Igbemo brown, Igbemo white varieties had the highest grain yields per plant, their maturity period exceeded the short period. Thus, NERICA 2 and NERICA 5 varieties which had lower number of days to flowering could be considered as candidate varieties that can be optimized in the niche in question.

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Identification and Validation of Aerobic Adaptation QTLs in Upland Rice

Life ◽

10.3390/life10050065 ◽

2020 ◽

Vol 10 (5) ◽

pp. 65 ◽

Cited By ~ 2

Author(s):

Peng Xu ◽

Jun Yang ◽

Zhenbing Ma ◽

Diqiu Yu ◽

Jiawu Zhou ◽

...

Keyword(s):

Plant Height ◽

Upland Rice ◽

Genetic Difference ◽

Rice Variety ◽

Heading Date ◽

Aerobic Condition ◽

Lowland Rice ◽

Genetic Dissection ◽

Phenotypic Differences ◽

Rice Genetic

The aerobic adaptation of upland rice is considered as the key genetic difference between upland rice and lowland rice. Genetic dissection of the aerobic adaptation is important as the basis for improving drought tolerance and terrestrial adaptation by using the upland rice. We raised BC1-BC3 introgression lines (ILs) in lowland rice Minghui 63 (MH63) background. The QTLs of yield and yield-related traits were detected based on ILs under the aerobic and lowland environments, and then the yield-related QTLs were identified in a backcrossed inbred population of BC4F5 under aerobic condition. We further verified phenotypes of QTL near-isogenic lines. Finally, three QTLs responsible for increasing yield in aerobic environment were detected by multiple locations and generations, which were designated as qAER1, qAER3, and qAER9 (QTL of aerobic adaptation). The qAER1 and qAER9 were fine-mapped. We found that qAER1 and qAER9 controlled plant height and heading date, respectively; while both of them increased yields simultaneously by suitable plant height and heading date without delay in the aerobic environment. The phenotypic differences between lowland rice and upland rice in the aerobic environment further supported the above results. We pyramided the two QTLs as corresponding molecular modules in the irrigated lowland rice MH63 background, and successfully developed a new upland rice variety named as Zhongkexilu 2. This study will lay the foundation for using aerobic adaptation QTLs in rice breeding programs and for further cloning the key genes involved in aerobic adaptation.

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