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Journal articles on the topic 'Panicle Exsertion'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Cruz, Renata Pereira da, Sandra Cristina Kothe Milach, and Luiz Carlos Federizzi. "Inheritance of pinacle exsertion in rice." Scientia Agricola 65, no. 5 (2008): 502–7. http://dx.doi.org/10.1590/s0103-90162008000500009.

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Incomplete panicle exsertion is one of the symptoms of cold injury at the reproductive stage of the rice plant (Oryza sativa L.), which damages grain yield and raises disease incidence. For this reason, panicle exsertion is a better indicator of cold tolerance under field conditions than spikelet sterility, which may also be affected by other climatic factors. This work studies the variability of degree of panicle exsertion in rice, under the Southern Brazilian environmental conditions and determines the inheritance and heritability of this trait. Four rice genotypes of different cool temperat

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2

Jebaraj, S., S. Palanisamy, and M. Subramanian. "Screening Rices for Good Panicle Exsertion." International Rice Research Newsletter 15, no. 3 (1990): 8. https://doi.org/10.5281/zenodo.7179251.

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This article 'Screening Rices for Good Panicle Exsertion' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in the world.

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Shoba, D., S. Robin, P. Jeyaprakash, and M. Arumugam Pillai. "Genetic studies for drought tolerance under contrasting moisture regimes in rice (Oryza sativa L.)." Oryza-An International Journal on Rice 57, no. 2 (2020): 108–15. http://dx.doi.org/10.35709/ory.2020.57.2.4.

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Twenty six genotypes and four check varieties were studied for drought tolerance in rice. The experiment was conducted under both irrigated and stress regimes. Ten different drought tolerant contributing traits were evaluated under stress regime and five yield contributing traits were evaluated under irrigated regime. Among the studied genotypes, IR 87651-26-1-1-3 possessed desirable mean performance under stress for grain yield with other studied traits except number of panicles per plant. Under irrigated regime, the genotypes IR 87753-13-1-1-3, IR 87638-10-1-1-3, IR 87759-5-2-1-3 and IR 8338

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4

Wang, Yakun, Shengjia Tang, Naihui Guo, et al. "Base Editing of EUI1 Improves the Elongation of the Uppermost Internode in Two-Line Male Sterile Rice Lines." Agriculture 13, no. 3 (2023): 693. http://dx.doi.org/10.3390/agriculture13030693.

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The use of male sterile lines (MSLs) of rice is essential for heterosis utilization. However, MSLs have a common defect in the elongation of the uppermost internode, eventually leading to incomplete panicle exsertion, blocking pollination, and reducing the hybrid rice seed yield. Previously, the elongated uppermost internode 1 (EUI1) was identified as an active gibberellin-deactivating enzyme that plays a key role in panicle exsertion from the flag leaf sheath in rice (Oryza sativa L.). We used an adenine base editor to edit EUI1 and obtained two types of homozygous transgenic plants (eui1-1 a

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5

Rodrigues, Fabrício Á., Francisco X. R. Vale, Lawrence E. Datnoff, Anne S. Prabhu, and Gaspar H. Korndörfer. "Effect of Rice Growth Stages and Silicon on Sheath Blight Development." Phytopathology® 93, no. 3 (2003): 256–61. http://dx.doi.org/10.1094/phyto.2003.93.3.256.

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The objective of this study was to determine the effect of silicon (Si) and rice growth stages on tissue susceptibility to sheath blight (Rhizoctonia solani Kühn) under controlled conditions. Rice plants (cv. Rio Formoso) were grown in pots containing low-Si soil amended with Si at 0, 0.48, 0.96, 1.44, and 1.92 g pot-1 and inoculated with R. solani at the following days after emergence: 45 (four-leaf stage), 65 (eight-leaf stage), 85 (tillering), 117 (booting), and 130 (panicle exsertion). For plants inoculated with R. solani at all growth stages, Si concentration in straw increased as rate of

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6

Choudhary, Madhu, Ravi P Singh, PK Singh, and Jayasudha S. "Principal component analysis of morpho-floral traits in Oryza sativa × Oryza longistaminata advanced backcross lines of rice." Journal of Experimental Biology and Agricultural Sciences 12, no. 3 (2024): 419–25. http://dx.doi.org/10.18006/2024.12(3).419.425.

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Hybrid rice technology substantially improves the food security of South Asian countries where rice (Oryza sativa L.) is a staple food. Several traits contribute to hybrid seed production efficiency, among which stigma exsertion is crucial for enhancing production by facilitating out-crossing pollination. This study evaluated the variation patterns and relative impact of 12 morpho-floral traits on overall variability in advanced backcross lines derived from crosses CRMS 32B cv. Oryza sativa and Oryza longistaminata. For this study, 290 BC4F2 lines were grown during Kharif 2019 in 3 replication

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7

Shu, Chuanhai, Feijie Li, Dongdong Liu, et al. "Heading Uniformity: A New Comprehensive Indicator of Rice Population Quality." Agriculture 11, no. 8 (2021): 770. http://dx.doi.org/10.3390/agriculture11080770.

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Productive tiller percentage (PTP) is the only available comprehensive indicator of rice population quality. However, productive panicle number (PN) has a great effect on its characterization accuracy. Panicle exsertion is an important but difficult to describe morphological index; therefore, it cannot be easily determined. The aims of this study were to develop heading uniformity (HU), which describes the difference in the degree of rice panicle exsertion, as a new comprehensive indicator by designing a representative sampling and calculation method and exploring the relationship between HU a

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8

S, Manonmani, Umadevi M, Pushpam R, Robin S, Rajeswar S, and Thiyagarajan K. "Evaluation of Floral and Morphological Traits in CMS Lines of Hybrid Rice." Madras Agricultural Journal 99, March (2012): 5–7. http://dx.doi.org/10.29321/maj.10.100002.

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Twenty one CMS lines and their respective maintainer lines were evaluated for floral and morphological characters. All the genotypes showed significant variation for the traits studied. The CMS lines viz., IR 58025A, IR 80559A, IR 79156A, DRR 5A, COMS 14A, COMS 15A, TNAU CMS 2A, CRMS 32A and IR 68897A were found promising for the characters viz., pollen sterility (%), glume angle, panicle exsertion (%), stigma exsertion (%), natural out crossing (%), which would favour good out-crossing during seed production of A x B and A x R combinations.

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9

HAMAD, Hassan, Elsayed GEWAILY, Adel GHONEIM, Mohamed SHEHAB, and Neama EL-KHOLLY. "Improvement ability of male parent by gibberellic acid application to enhancing the outcrossing of cytoplasmic male sterility rice lines." Acta agriculturae Slovenica 117, no. 3 (2021): 1. http://dx.doi.org/10.14720/aas.2021.117.3.2114.

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<p class="042abstractstekst">The study quantified the effect of gibberellic acid (GA<sub>3</sub>) as a pre-flowering treatment for male parent Giza 178 R and the influence of male to female ratio (2R:10A, 2R:12A, 2R:14A and 2R:16A) between male (R) to female (A) for two Cytoplasmic Male Sterility (CMS) lines (‘IR69625’ and ‘G46’) on hybrid rice seed production. The main plots were occupied by CMS lines while; GA3 application for male parent Giza 178R were arranged in the sub plots and male to female ratio was arranged in the sub-sub plots. The results indicated that, the, dur

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HAMAD, Hassan, Elsayed GEWAILY, Adel GHONEIM, Mohamed SHEHAB, and Neama EL-KHOLLY. "Improvement ability of male parent by gibberellic acid application to enhancing the outcrossing of cytoplasmic male sterility rice lines." Acta agriculturae Slovenica 117, no. 3 (2021): 1. http://dx.doi.org/10.14720/aas.2021.117.1.2114.

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<p class="042abstractstekst">The study quantified the effect of gibberellic acid (GA<sub>3</sub>) as a pre-flowering treatment for male parent Giza 178 R and the influence of male to female ratio (2R:10A, 2R:12A, 2R:14A and 2R:16A) between male (R) to female (A) for two Cytoplasmic Male Sterility (CMS) lines (‘IR69625’ and ‘G46’) on hybrid rice seed production. The main plots were occupied by CMS lines while; GA3 application for male parent Giza 178R were arranged in the sub plots and male to female ratio was arranged in the sub-sub plots. The results indicated that, the, dur

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11

Farnham, M. W., D. D. Stuthman, and G. J. Pomeranke. "Inheritance of and Selection for Panicle Exsertion in Semidwarf Oat." Crop Science 30, no. 2 (1990): 328. http://dx.doi.org/10.2135/cropsci1990.0011183x003000020017x.

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12

Pandey, D. K., and H. S. Gupta. "Genetics of Panicle Exsertion in Cold-Tolerant Rice (Oryza sativa)." Plant Breeding 111, no. 1 (1993): 82–85. http://dx.doi.org/10.1111/j.1439-0523.1993.tb00610.x.

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13

Farnham, M. W., D. D. Stuthman, and D. D. Biesboer. "Cellular Expression of Panicle Exsertion and Peduncle Elongation in Semidwarf Oat." Crop Science 30, no. 2 (1990): 323. http://dx.doi.org/10.2135/cropsci1990.0011183x003000020016x.

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14

Upadhyaya, H. D., K. N. Reddy, M. Vetriventhan, et al. "Status, genetic diversity and gaps in sorghum germplasm from South Asia conserved at ICRISAT genebank." Plant Genetic Resources 15, no. 6 (2016): 527–38. http://dx.doi.org/10.1017/s147926211600023x.

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AbstractThe genebank at ICRISAT, India that serves as a world repository for sorghum germplasm conserves 39,234 accessions from 93 countries, including 6249 from seven South Asian countries: Afghanistan (6), Bangladesh (9), India (6101), the Maldives (10), Nepal (8), Pakistan (90) and Sri Lanka (25). A total of 5340 georeferenced accessions were used to identify gaps, and 5322 accessions that were characterized at ICRISAT were used to assess the diversity in the collection. Accessions of basic races varied widely than those of intermediate races for flowering in the postrainy season, plant hei

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15

Lee, Jinwon, Sunok Moon, Seonghoe Jang, et al. "OsbHLH073 Negatively Regulates Internode Elongation and Plant Height by Modulating GA Homeostasis in Rice." Plants 9, no. 4 (2020): 547. http://dx.doi.org/10.3390/plants9040547.

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Internode elongation is one of the key agronomic traits determining a plant’s height and biomass. However, our understanding of the molecular mechanisms controlling internode elongation is still limited in crop plant species. Here, we report the functional identification of an atypical basic helix-loop-helix transcription factor (OsbHLH073) through gain-of-function studies using overexpression (OsbHLH073-OX) and activation tagging (osbhlh073-D) lines of rice. The expression of OsbHLH073 was significantly increased in the osbhlh073-D line. The phenotype of osbhlh073-D showed semi-dwarfism due t

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Rahman, MH, MM Khatun, MSR Khan, MM Haque, and MG Rasul. "Effect Of Ga3 And Row Ratio On Floral Traits Of Component Lines Of BRRI Hybrid Dhan2." Bangladesh Journal of Agricultural Research 38, no. 1 (2013): 155–63. http://dx.doi.org/10.3329/bjar.v38i1.15202.

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Component lines (A and R lines) of BRRI hybrid dhan2 were assessed under treatment of GA3 application and row ratio on days to 5% and 50% flowering, duration of opening of floret, angle of open floret, filament length, anther length, stigma length, panicle exsertion rate, stigma exsertion rate and outcrossing rate. The CMS line viz; BRRI 10A have been found to be usable female parents for hybrid rice seed production due to their stigma length, stigma exsertion rate, duration of blooming, anther length and filament length. The different between genotypic and phenotypic variation was not remarka

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17

Cruz, Renata Pereira da, Sandra Cristina Kothe Milach, and Luiz Carlos Federizzi. "Rice cold tolerance at the reproductive stage in a controlled environment." Scientia Agricola 63, no. 3 (2006): 255–61. http://dx.doi.org/10.1590/s0103-90162006000300007.

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Cold tolerance of rice (Oryza sativa L.) during the reproductive stage is important to guarantee high yield under low temperature environments. Field selection, however, does not allow identification of adequate tolerance sources and limits selection of segregating lines due to variable temperature. The objective of this study was to devise methods for distinguishing rice genotypes as to their cold tolerance at the reproductive stage when evaluated under controlled temperature. The effect of cold temperatures was investigated in six rice genotypes at 17°C for varying length of time (three, fiv

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18

Vinod, K. K., P. Vivekanandan, and M. Subramanian. "Effect of Cytoplasmic Male Sterility (CMS) on Panicle Exsertion and Sheath Rot (ShR) Incidence in F2 Rice Hybrids." International Rice Research Newsletter 15, no. 2 (1990): 5. https://doi.org/10.5281/zenodo.7179103.

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This article 'Effect of Cytoplasmic Male Sterility (CMS) on Panicle Exsertion and Sheath Rot (ShR) Incidence in F2 Rice Hybrids' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land sc

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19

Abo-Youssef, M., A. El Sabagh, G. Abo-Gendy, and A. Mohamed. "Enhancing Seed Yield of Hybrid Rice by Maintaining Row Ratio and Dosages of Gibberellic Acid." Cercetari Agronomice in Moldova 50, no. 1 (2017): 31–45. http://dx.doi.org/10.1515/cerce-2017-0003.

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Abstract The purpose of this study was to identify the optimum levels of gibberellic acid and suitable row ratio for maximization the seed yield of hybrid rice. An experiment was conducted at the experimental farm of Rice Research and Training Center, Egypt, during 2013 and 2014 growing seasons. The material under this study included the parental lines of IR69625A (Female lines) and Giza 179 R (Restorer line) to produce F0 hybrid seeds. A split-plot design with three replications was used. The main plot was row ratio (2R:8A, 2R:10A and 2R:12A) and sub plots was the doses of gibberellic acid (g

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20

Gao, Shaopei, Jun Fang, Fan Xu, Wei Wang, and Chengcai Chu. "Rice HOX12 Regulates Panicle Exsertion by Directly Modulating the Expression of ELONGATED UPPERMOST INTERNODE1." Plant Cell 28, no. 3 (2016): 680–95. http://dx.doi.org/10.1105/tpc.15.01021.

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21

Hasan, MJ, MH Rahman, A. Akter, MU Kulsum, and A. Islam. "Assessment of Appropriate Doses of GA3 and Row Ratio for Better Seed Yield of a Promising Hybrid Rice Variety." Bangladesh Rice Journal 19, no. 1 (2015): 57–61. http://dx.doi.org/10.3329/brj.v19i1.25221.

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A field experiment was carried out at the Bangladesh Rice Research Institute (BRRI) farm, Gazipur during dry season 2013-14 to find out the appropriate GA3 dose and row ratio for hybrid seed production. GA3 doses were applied @ 0, 80, 160, 240 and 320 g ha-1 with different row ratio. Results revealed that GA3 application influenced the panicle exsertion rate only. The calculated optimum GA3 dose was 302.4 g ha-1 with the highest PER (84.62%). Seed yield and OCR were influenced by row ratio. The highest OCR was observed with 2:12 row ratio while the highest seed yield was found in 2:14 row rati

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22

QIAO, Bao-Jian, Xiao-Biao ZHU, Ying-Ying WANG, and De-Lin HONG. "Mapping of QTL for Three Panicle Exsertion-Related Traits in Rice Under Different Growing Environments." Acta Agronomica Sinica 34, no. 3 (2008): 389–96. http://dx.doi.org/10.1016/s1875-2780(08)60017-6.

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Rembang, Janne H. W., Abdul W. Rauf, and Joula O. M. Sondakh. "Morphological Character of Local Irrigated Rice on Farmer Field in North Sulawesi." Buletin Plasma Nutfah 24, no. 1 (2018): 1. http://dx.doi.org/10.21082/blpn.v24n1.2018.p1-8.

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<p>Local rice is a potential germplasm as a source of genes that control important properties in rice plants. The research aimed to characterize the morphological character of local rice cultivars of North Sulawesi. The research was conducted from January to June 2015 in North Sulawesi. The method used was the descriptive qualitative method. Exploration was done by collecting samples of local rice cultivars in North Sulawesi. Each cultivar was characterized its morphological characters according to the Characterization and Evaluation Guidelines of Rice Germplasm. The local rice found in

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Ahn, Ezekiel, Louis K. Prom, Coumba Fall, and Clint Magill. "Response of Senegalese Sorghum Seedlings to Pathotype 5 of Sporisorium reilianum." Crops 2, no. 2 (2022): 142–53. http://dx.doi.org/10.3390/crops2020011.

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Sporisorium reilianum causes head smut in sorghum. A total of 36 Senegalese sorghum accessions comprised of sorghum lines that have not been explored with response to pathotype 5 of S. reilianum were evaluated with 3 different treatments. First, seedling shoots were inoculated while still in soil with teliospores in agar, and then submerged under water at 4 days post inoculation. Signs of infection (noticeable spots) on the first leaf were observed up to 6 days post submergence. Second, seedlings at the same stage were inoculated by placing the teliospore impregnated agar around the stem in po

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TSUDA, Makoto. "Effects of water deficits on panicle exsertion in rice (Oryza sativa L.) and sorghum (Sorghum bicolor (L.) Moench)." Japanese journal of crop science 55, no. 2 (1986): 196–200. http://dx.doi.org/10.1626/jcs.55.196.

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Chen, Hao, Shan Jiang, Jie Zheng, and Yongjun Lin. "Improving panicle exsertion of rice cytoplasmic male sterile line by combination of artificial microRNA and artificial target mimic." Plant Biotechnology Journal 11, no. 3 (2012): 336–43. http://dx.doi.org/10.1111/pbi.12019.

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QIAO, Bao-Jian. "Mapping QTL for Three Panicle Exsertion-Related Traits in Rice (Oryza sativa L.) under Different Growing Environments." ACTA AGRONOMICA SINICA 34, no. 3 (2008): 389–96. http://dx.doi.org/10.3724/sp.j.1006.2008.00389.

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Upadhyaya, H. D., Shivali Sharma, B. Ramulu, et al. "Variation for qualitative and quantitative traits and identification of trait-specific sources in new sorghum germplasm." Crop and Pasture Science 61, no. 8 (2010): 609. http://dx.doi.org/10.1071/cp10089.

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Assembling, collecting and characterising the unique germplasm accessions for morphological and agronomic characteristics are essential activities of a dynamic genebank. The phenotypic diversity and agronomic performance of 667 newly acquired sorghum germplasm accessions, representing five basic races, eight intermediate races and two wild species, originating from 34 countries were assessed for seven qualitative and eight quantitative traits. Large variability was observed among these accessions for various qualitative and quantitative traits. Trait-specific accessions for early flowering (10

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Cabusora, Christopher, and Nenita Desamero. "Genetic variation in drought stress tolerant rice variety NSIC Rc9 (Apo) through In Vitro mutagenesis." Palawan Scientist 15, no. 1 (2023): 48–64. http://dx.doi.org/10.69721/tps.j.2023.15.1.06.

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In vitro mutagenesis, a technique combining tissue culture and irradiation, of the drought-tolerant rice variety National Seed Industry Council (NSIC) Rc9 (Apo), resulted in the generation of an induced mutant population. Irradiation of gamma rays at four doses (10 Gy, 30 Gy, 50 Gy, and 70 Gy) was applied to callus pieces derived from tissue-cultured mature seeds. The control (0 Gy) determined the effect of irradiation doses on tissue culture response in callus induction and regeneration. A decreasing trend in callus induction and regeneration efficiency was observed with the increasing dosage

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Lestari, Endang G., Iswari S. Dewi, and Rossa Yunita. "Seleksi Galur Mutan Padi Fatmawati Tahan terhadap Penyakit Blas dan Evaluasi Karakter Agronomi di Rumah Kaca dan di Lahan Sawah." Buletin Plasma Nutfah 21, no. 2 (2016): 79. http://dx.doi.org/10.21082/blpn.v21n2.2015.p79-88.

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<p>Fatmawati, a rice variety released in 2003, is a new plant type (NPT) of rice that had different characteristic from existing high yielding rice varieties (HYV). The yield potential of this rice variety is 7.5 t/ha. Therefore its cultivated is expected to increase national rice production. However, the dissemination of this variety was hampered in several regions due to its susceptibility to blast disease and high percentage of empty grain caused by partially exserted and enclosed panicle. This research was conducted to evaluate 104 dihaploid mutant lines of Fatmawati for resistance t

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Rahman, MH, MM Khatun, MSR Khan, MAK Mian, and MG Rasul. "Effect of GA3 and row ratio of restorer (R) and CMS lines (A) on different characters and seed production of BRRI Hybrid Dhan2." Bangladesh Journal of Agricultural Research 37, no. 4 (2013): 665–76. http://dx.doi.org/10.3329/bjar.v37i4.14391.

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An experiment was conducted at the experimental farm of Bangladesh Rice Research Institute (BRRI), Gazipur, during November to May 2009-10 to study the effect of GA3and row ratio of restorer and CMS lines on different characters and F1 seed production of BRRI hybrid dhan2. The treatments were of four levels of GA3 viz., (i) control, (ii) 150 g/ha, (iii) 250 g/ha, and (iv) 350 g/ha and five row ratios (R:A) viz., (i) 2:8, (ii) 2:10, (iii) 2:12, (iv) 2:14, and (v) 2:16. Different doses of GA3 ignificantly influenced growth and yield components of rice except total tillers/hill and 1000-grain wei

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Guimarães, Cleber M., Luís F. Stone, and Ana C. de L. Silva. "Evapotranspiration and grain yield of upland rice as affected by water deficit." Revista Brasileira de Engenharia Agrícola e Ambiental 20, no. 5 (2016): 441–46. http://dx.doi.org/10.1590/1807-1929/agriambi.v20n5p441-446.

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ABSTRACT To achieve an accurate phenotyping for drought tolerance, it is important to control water stress levels and timing. This study aimed to determine water use by upland rice plants during periods of irrigation withholding and its relationship with grain yield in order to increase the efficiency of this phenotyping. Two experiments were carried out in a randomized block design in which six water treatments (irrigation withholding for periods of 2, 4, 6, 8, 10 and 12 days) were compared, with four replicates. In the first experiment, treatments were applied at the R3 stage (panicle exsert

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Wening, Rina Hapsari, Bambang Sapta Purwoko, Willy Bayuardi Suwarno, Indrastuti Apri Rumanti, and Dan Nurul Khumaida. "Seleksi Simultan Karakter Daun Mengering dan Produktivitas pada Galur-galur Padi." Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) 47, no. 3 (2020): 232–39. http://dx.doi.org/10.24831/jai.v47i3.26076.

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Drought is an important constraint for rice production in rainfed lowland and shallow freshwater swamp. The area often experiences drought stress at the generative stage of the plants. This study aimed at selecting adaptive lines to terminal drought and formulating a multiple regression model to estimate the productivity under drought stress conditions at the generative stage. The experiment was conducted in a greenhouse of the Indonesian Center for Rice Research, Subang, West Java, using an augmented design with five blocks. The genetic material used was ninety-nine lines and four checks vari

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D, Kavithamani, Robin S, Manonmani S, and Mohanasundaram K. "Variability and Genetic Parameter Analysis in F3 and F4 Generation of TGMS Rice (Oryza sativa L.) Population." Madras Agricultural Journal 99, December (2012): 641–44. http://dx.doi.org/10.29321/maj.10.100161.

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An attempt was made to study variability and genetic parameter analysis in the F 3 and F 4 generation of rice genotypes. The phenotypic variance was higher than the corresponding genotypic variance for all the characters in F 3 and F 4 generation. These differences were indicating greater influence of environment for expression of the traits in F 3 generation and F 4 generations. Considering genetic parameters high genotypic coefficient of variation (GCV) value was observed for number of productive tillers per plant (25.78) and single plant yield (24.578), whereas moderate genotypic coefficien

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Kapanigowda, Mohankumar H., Ramasamy Perumal, Robert M. Aiken, Thomas J. Herald, Scott R. Bean, and Christopher R. Little. "Analyses of sorghum [Sorghum bicolor (L.) Moench] lines and hybrids in response to early-season planting and cool conditions." Canadian Journal of Plant Science 93, no. 5 (2013): 773–84. http://dx.doi.org/10.4141/cjps2012-311.

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Kapanigowda, M., H., Perumal, R., Aiken, R. M., Herald, T. J., Bean, S. R. and Little, C. R. 2013. Analyses of sorghum [ Sorghum bicolor (L.) Moench] lines and hybrids in response to early-season planting and cool conditions. Can. J. Plant Sci. 93: 773–784. Early-season cold tolerance in sorghum contributes to emergence, seedling establishment, and early vegetative growth, and reduces damping-off diseases under chilling conditions. The objectives of this study were to identify cold-tolerant sources and to evaluate and optimize rapid screening techniques under a controlled environment. Field st

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Toosang, Siriluk, Sansanee Jamjod, and Tonapha Pusadee. "Characterization of Grain Quality Traits of Thai Highland Glutinous Rice Landraces." Chiang Mai Journal of Science 51, no. 1 (2024): 1–15. http://dx.doi.org/10.12982/cmjs.2024.007.

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Glutinous rice is popularly consumed as a staple food, processed for the snack industry, and fermented for alcoholic beverages by people in the North and Northeast of Thailand. Cooking quality traits are an important factor used to select for consumption and utilization by farmers. The target outputs of future rice breeding programs should focus on developing rice varieties with superior grain quality, particularly in relation to their utilization. Therefore, this research aims to assess the morphological characteristics and cooking quality of four populations of Thai highland glutinous rice l

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Armstrong, Leisa J., and Stephen W. Adkins. "Variation in photoperiod response of different isogenic lines of wild oats (Avena fatua)." Weed Science 46, no. 1 (1998): 39–47. http://dx.doi.org/10.1017/s0043174500090147.

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For wild oats, persistence characters such as seed production and seed dormancy may be affected by genetic variation and several environmental factors during the development of the parental plant. However, the effect of varying photoperiods on such characters is unclear. Previous studies have concentrated on natural populations and have not studied the genetic variability within the population. Consequently, a study was conducted to examine how photoperiod (10, 12, 14, 16, and 18 h at 20 C) influenced the persistence of different members of a synthetic population of wild oats. This synthetic p

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He, Haohua, Changlan Zhu, Wenxin Huang, and Guoyou Ye. "Characterisation of an environmentally induced genic male sterile line of indica rice (Oryza sativa spp. Indica)." Australian Journal of Agricultural Research 57, no. 4 (2006): 457. http://dx.doi.org/10.1071/ar05102.

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Environmentally induced genic male sterility has been successfully used in a 2-line system to produce hybrid rice, with the potential to further increase yield. Elite sterile lines need to be developed for a target production environment to successfully use this novel male sterility system. In this study, a new male sterile line, B06S, identified by Jiangxi Agricultural University, China, was characterised for its flowering characteristics, male fertility behaviour, and the inheritance of male sterility. Flowering characteristics were observed in a sterility-inducing season in Nanchang, China.

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Frederickson, D. E., and K. Leuschner. "Potential Use of Benomyl for Control of Ergot (Claviceps africana) in Sorghum A-lines in Zimbabwe." Plant Disease 81, no. 7 (1997): 761–65. http://dx.doi.org/10.1094/pdis.1997.81.7.761.

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In the absence of a successful practice for the control of ergot on sorghum A-lines (male-steriles) in Zimbabwe, two fungicides, Benlate and Thiram, were tested in greenhouse and field experiments. Fungicides were either applied to sorghum panicles singly, at concentrations of 0.1 or 0.2% a.i., or combined in mixtures at 0.1% a.i. each. Fungicides were applied before inoculation at heading or stigma exsertion, or after disease became visible. Treatment with either Benlate or Thiram was ineffective if applied when disease first became visible. A significant reduction in initial disease severity

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Oliveira, PRPde, and LR Humphreys. "Influence of level and timing of shading on seed production in Panicum maximum cv. Gratton." Australian Journal of Agricultural Research 37, no. 4 (1986): 417. http://dx.doi.org/10.1071/ar9860417.

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Artificial swards of P. maximum cv. Gatton were shaded to 25% (L25) or 54% (L54) of the sunlight received in a glasshouse for various periods related to the floral initiation, exsertion, anthesis and ripening stages of the first-formed inflorescences. Shading did not significantly reduce shoot yield. Seed yield was 93 g m-2 in the control treatment, relative to 32-48 g m-2 in the L54 series; in the L25 series, yields varied from 4 g m-2 in the continuously shaded treatment to 29 g m-2 in a late-shaded treatment. Reduction in seed yield was caused by a substantial decrease in the ratio of spike

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Mei, Enyang, Mingliang He, Min Xu, et al. "OsWRKY78 regulates panicle exsertion via gibberellin signaling pathway in rice." Journal of Integrative Plant Biology, March 12, 2024. http://dx.doi.org/10.1111/jipb.13636.

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ABSTRACTPanicle exsertion is one of the crucial agronomic traits in rice (Oryza sativa). Shortening of panicle exsertion often leads to panicle enclosure and severely reduces seed production. Gibberellin (GA) plays important roles in regulating panicle exsertion. However, the underlying mechanism and the relative regulatory network remain elusive. Here, we characterized the oswrky78 mutant showing severe panicle enclosure, and found that the defect of oswrky78 is caused by decreased bioactive GA contents. Biochemical analysis demonstrates that OsWRKY78 can directly activate GA biosynthesis and

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Harshitha, Bheemapura Shivakumar, Vikram Jeet Singh, Shekharappa Nandakumar, et al. "Uncovering QTLs for uppermost internode length and panicle exsertion in rice (Oryza sativa L.)." Frontiers in Sustainable Food Systems 8 (November 27, 2024). http://dx.doi.org/10.3389/fsufs.2024.1470871.

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Uppermost internode length (UIL) and panicle exsertion are two important traits that contribute significantly to increased yield in rice. The present study was conducted using recombinant inbred lines (RILs) comprising 201 lines derived from RTN10B and IRG213. These RILs were evaluated at three different locations— Delhi, Karnal, and Aduthurai. We report the mapping of quantitative trait loci (QTLs) for uppermost internode length and the panicle exsertion ratio (PER), as well as QTLs for plant height (PH), tiller number, length of the second internode, length of the third internode, length fro

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FATHIN, TILMIIDZAH SALMA, ATMITRI SISHARMINI, ANIVERASRI APRIANA, TRI JOKO SANTOSO, and AHMAD YUNUS. "Evaluating the phenotypic responses of CRISPR/Cas9-edited Mentik Wangi rice mutants T1 focusing on GA20ox2 and OsCKX2 gene knockout." Biodiversitas Journal of Biological Diversity 25, no. 8 (2024). https://doi.org/10.13057/biodiv/d250852.

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Abstract. Fathin TS, Sisharmini A, Apriana A, Santoso TJ, Yunus A. 2024. Evaluating the phenotypic responses of CRISPR/Cas9-edited Mentik Wangi rice mutants T1 focusing on GA20ox2 and OsCKX2 gene knockout. Biodiversitas 25: 2783-2790. Mentik Wangi is a local Indonesian rice variety with tall plant stature, making it susceptible to lodging and yield loss, necessitating trait improvements to overcome these weaknesses. Gene editing of GA20ox2 and OsCKX2 using CRISPR/Cas9 was conducted to improve the characteristics of Mentik Wangi. This study aimed to evaluate the phenotypic responses of T1 Menti

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A Hake, Anil, Nakul Magar, Kalyani M Barbadikar, et al. "In silico Identification of Alternatively Spliced Variants from Transcriptome Data of Rice Lines Exhibiting Complete Panicle Exsertion." Journal of Rice Research 17, no. 1 (2024). http://dx.doi.org/10.58297/zosa3483.

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Alternative splicing (AS) is a molecular mechanism governing gene expression, particularly in plants, wherein a single gene can yield multiple mRNA transcripts, thereby diversifying the resulting protein isoforms. Panicle exsertion (PE) is an important trait associated with grain yield in rice. We deployed the mRNA sequencing (transcriptome) data from incompletely exserted panicle genotype, BPT-5204 and its ethyl methanesulphonate (EMS) mutant lines viz., CPE-109 and CPE-110 exhibiting completely exserted panicle for identification of Alternative Splicing (AS) events. Our systematic analysis u

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Choudhary, M., R. P. Singh, P. K. Singh, R. L. Verma, and S. Jayasudha. "Genetic Variability and Association Studies for Morpho-floral Traits in Backcross Introgression Lines of Rice (Oryza sativa L.)." Indian Journal Of Agricultural Research, Of (October 25, 2024). http://dx.doi.org/10.18805/ijare.a-6272.

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Background: Wild introgressions are pivotal in enriching the genetic diversity of cultivated varieties by introducing novel alleles beneficial for crop improvement. Understanding insights into genetic variability and association studies of morphological and floral traits are crucial for enhancing hybrid seed production in rice. Methods: 290 backcross introgression lines (BC4F2) from inter-specific cross of CRMS 32B (maintainer of male sterile line as low stigma exsertion recipient parent) cv. Oryza sativa with Oryza longistaminata (wild rice as high stigma exsertion donor parent) were assessed

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Zhan, Chengfang, Jiaxiao Hu, Qiao Pang, et al. "Genome-wide association analysis of panicle exsertion and uppermost internode in rice (Oryza sativa L.)." Rice 12, no. 1 (2019). http://dx.doi.org/10.1186/s12284-019-0330-x.

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Abstract Background Rice (Oryza sativa L.) yield is seriously influenced by panicle exsertion (PE) and the uppermost internode (UI) through panicle enclosure or energy transport during grain-filling stages. We evaluated the traits of PE and UI of 205 rice accessions in two independent environments and performed genome-wide association (GWAS) to explore the key genes controlling PE and UI, which could be used to improve panicle enclosure in rice breeding. Results In this study, extensive genetic variation was found in both PE and UI among the 205 rice accessions, and 10.7% of accessions had pan

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Zhao, Chunfang, Qingyong Zhao, Ling Zhao, et al. "Characterization and fine mapping of qPE12, a new locus controlling rice panicle exsertion." Euphytica 214, no. 3 (2018). http://dx.doi.org/10.1007/s10681-017-2104-0.

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Sahoo, Chinmayee. "Phenotypic characterization of aromatic rice (Oryza sativa L.) landraces of Odisha, India." Ecology, Environment and Conservation, May 31, 2022, 261–70. http://dx.doi.org/10.53550/eec.2022.v28i03s.039.

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A total of 127 accessions of aromatic short grain rice were collected with detailed passport informationfrom 30 districts of Odisha, India. The agro-morphological characters of all the landraces wererecordedaccording to Distinctiveness, Uniformity and Stability (DUS) guidelines with 21 qualitative and 16quantitative characters and statistically analysed. Out of the different qualitative traits studied, ligule colour,panicle type, secondary branching, panicle axis and awning were found to be dimorphic; blade colour,blade pubescence, basal leaf sheath colour, collar colour, auricle colour, inter

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Kandpal, Manu, Chandrapal Vishwakarma, Kushagra Krishnan, et al. "Gene Expression Dynamics in Rice Peduncles at the Heading Stage." Frontiers in Genetics 11 (December 3, 2020). http://dx.doi.org/10.3389/fgene.2020.584678.

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Improving grain yield in the staple food crop rice has been long sought goal of plant biotechnology. One of the traits with significant impact on rice breeding programs is peduncle elongation at the time of heading failing which leads to significant reduction in grain yield due to incomplete panicle exsertion. To decipher transcriptional dynamics and molecular players underlying peduncle elongation, we performed RNA sequencing analysis of elongating and non-elongating peduncles in two Indian cultivars, Swarna and Pokkali, at the time of heading. Along with genes associated with cell division a

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Vange, T., G. O. S. Ojo, and A. M. Ladan. "Combining Ability and Heterosis for Some Yield Component Traits in a 10x10 Diallel Cross of Rice (Oryza sativa L.)." Asian Journal of Research in Crop Science, September 29, 2020, 24–34. http://dx.doi.org/10.9734/ajrcs/2020/v5i430102.

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A ten – parent diallel experiment was carried out at the Teaching and Research Farms of the Federal University of Agriculture, Makurdi, Nigeria, to estimate combining ability and heterosis in rice. The design was a 10x10 alpha lattice with three replications and data was collected on plant height (PH), tiller numbers/plant (TN), leaf length (LL) and width (LW), days to flowering (DF), panicle length (PL), panicle exsertion (PE), spikelet numbers/panicle (SN), 100 seed weight (100SW) and days to maturity(DM). A preponderance of both additive and non – additive gene action with both negative and

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