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Journal articles on the topic 'Semidwarf Rice'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Bhatti, I. M., and A. A. Soomro. "Lateefy, a New Aromatic Semidwarf Rice." International Rice Research Newsletter 10, no. 2 (1985): 3. https://doi.org/10.5281/zenodo.7008703.

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This article 'Lateefy, a New Aromatic Semidwarf Rice' 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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2

Xu, J. L., Z. T. Shen, and Y. Z. Lin. "Inheritance of Response to Gibberellic Acid (GA3) in Semidwarf Rices." International Rice Research Newsletter 15, no. 3 (1990): 6–7. https://doi.org/10.5281/zenodo.7179332.

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This article 'Inheritance of Response to Gibberellic Acid (GA3) in Semidwarf Rices' 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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3

Cheema, A. A., and M. A. Awan. "Performance of Semidwarf Mutants of Basmati 370." International Rice Research Newsletter 13, no. 3 (1988): 20–21. https://doi.org/10.5281/zenodo.7136150.

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This article 'Performance of Semidwarf Mutants of Basmati 370' 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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4

Naidu, B. S., B. Vidyachandra, M. G. Rao, and T. G. Reddy. "Karna: a High-Yielding Semidwarf for Karnataka." International Rice Research Newsletter 11, no. 2 (1986): 3–4. https://doi.org/10.5281/zenodo.7121662.

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This article 'Karna: a High-Yielding Semidwarf for Karnataka' 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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5

Fitriyanti, Clara S. A., Suharsono Suharsono Suharsono, and Tri Joko Santoso. "Molecular and Phenotypic Analyses of Inpari HDB/K15 F2 Lines Containing sd1 Mutant Gene Resulted from Genome Editing Method." Jurnal AgroBiogen 16, no. 1 (2020): 35. http://dx.doi.org/10.21082/jbio.v16n1.2020.p35-44.

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<p>Inpari HDB variety is resistant to bacterial leaf blight (BLB) disease, but due to its tall stature, the variety is susceptible to lodging. Inpari HDB with semidwarf stature, therefore, is of high interest for lodging resistant performance. sd1 gene encoding GA20ox-2 enzyme is one of the genes responsible for imparting semidwarf stature of rice. In previous study, sd1 mutant rice cv. Kitaake (K15) was developed by using CRISPR/Cas9 technology. The objective of this study was to analyze molecularly and phenotypically F2 lines containing sd1 mutant gene resulted from a cross between Inp

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6

Singh, S. P., and K. G. Pillai. "Response to Nitrogen in Semidwarf Scented Rice Varieties." International Rice Research Notes 19, no. 4 (1994): 16–17. https://doi.org/10.5281/zenodo.7006287.

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This article 'Response to Nitrogen in Semidwarf Scented Rice Varieties' appeared in the International Rice Research Notes series, created by the International Rice Research Institute (IRRI) to expedite communication among scientists concerned with the development of improved technology for rice and rice-based systems. The series is a mechanism to help scientists keep each other informed of current rice research findings. The concise scientific notes are meant to encourage rice scientists to communicate with one another to obtain details on the research reported.

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7

Rutger, J. N., K. A. K. Moldenhauer, K. A. Gravois, et al. "Registration of Six Semidwarf Mutants of Rice." Crop Science 44, no. 1 (2004): 364. http://dx.doi.org/10.2135/cropsci2004.0364.

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8

Rutger, J. N., K. A. K. Moldenhauer, K. A. Gravois, et al. "Registration of Six Semidwarf Mutants of Rice." Crop Science 44, no. 1 (2004): 364–66. http://dx.doi.org/10.2135/cropsci2004.3640.

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9

Rutger, J. N., R. J. Bryant, and K. A. K. Moldenhauer. "Registration of Induced Semidwarf Rice Mutant DR1." Crop Science 46, no. 5 (2006): 2340. http://dx.doi.org/10.2135/cropsci2006.05.0324crg.

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10

Sajjad, M. S., and M. A. Awan. "Induction of Productive Semidwarf Mutants of Basmati Rice." International Rice Research Newsletter 12, no. 6 (1987): 20. https://doi.org/10.5281/zenodo.7128114.

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This article 'Induction of Productive Semidwarf Mutants of Basmati Rice' 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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11

Panwar, D. V. S., K. R. Gupta, K. R. Battan, and A. Singh. "HKR228, a Semidwarf Aromatic Rice Strain for Haryana, India." International Rice Research Newsletter 16, no. 5 (1991): 16–17. https://doi.org/10.5281/zenodo.7218476.

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This article 'HKR228, a Semidwarf Aromatic Rice Strain for Haryana, India' 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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12

Tomita, Motonori, and Keiichiro Ishimoto. "Rice Novel Semidwarfing Gene d60 Can Be as Effective as Green Revolution Gene sd1." Plants 8, no. 11 (2019): 464. http://dx.doi.org/10.3390/plants8110464.

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Gene effects on the yield performance were compared among promising semidwarf genes, namely, novel gene d60, representative gene sd1 with different two source IR8 and Jukkoku, and double dwarf combinations of d60 with each sd1 allele, in a Koshihikari background. Compared with the culm length of variety Koshihikari (mean, 88.8 cm), that of the semidwarf or double dwarf lines carrying Jukkoku_sd1, IR8_sd1, d60, Jukkoku_sd1 plus d60, or IR8_sd1 plus d60 was shortened to 71.8 cm, 68.5 cm, 65.7 cm, 48.6 cm, and 50.3 cm, respectively. Compared with the yield of Koshihikari (mean, 665.3 g/m2), that

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13

Rutger, J. N., K. A. K. Moldenhauer, K. A. Gravois, F. N. Lee, R. J. Norman, and R. J. Bryant. "Registration of Five Induced Semidwarf Mutants of Rice." Crop Science 44, no. 4 (2004): 1496–97. http://dx.doi.org/10.2135/cropsci2004.1496.

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14

Patil, V. D., Y. S. Nerkar, M. B. Misal, and S. R. Harkal. "Parag 401, a semidwarf rice variety developed through anther culture." International Rice Research Notes 22, no. 2 (1997): 19. https://doi.org/10.5281/zenodo.7006538.

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This article 'Parag 401, a semidwarf rice variety developed through anther culture' appeared in the International Rice Research Notes series, created by the International Rice Research Institute (IRRI) to expedite communication among scientists concerned with the development of improved technology for rice and rice-based systems. The series is a mechanism to help scientists keep each other informed of current rice research findings. The concise scientific notes are meant to encourage rice scientists to communicate with one another to obtain details on the research reported.

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15

TOMITA, MOTONORI. "Combining two semidwarfing genes d60 and sd1 for reduced height in ‘Minihikari’, a new rice germplasm in the ‘Koshihikari’ genetic background." Genetics Research 94, no. 5 (2012): 235–44. http://dx.doi.org/10.1017/s0016672312000456.

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SummaryDwarfing in rice has dramatically improved and stabilized rice yields worldwide, often controlled by a single dwarf gene, sd1. A novel semidwarf gene d60 complements the gametic lethal gene gal, such that the F1 between ‘Hokuriku 100’ (genotype d60d60GalGal, Gal: mutant non-lethal allele) and ‘Koshihikari’ (D60D60galgal, D60: tall allele) would show 25% sterility due to deterioration of gametes bearing both gal and d60. The F2 would segregate as one semidwarf (1 d60d60GalGal) : two tall and 25% sterile (2 D60d60Galgal) : six tall (2 D60d60GalGal : 1 D60D60GalGal : 2 D60D60Galgal : 1 D60

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16

Xu, J. L., and J. Y. Zhang. "Contents of Endogeneous Hormones GA, IAA, and ABA in Semidwarf Rice." International Rice Research Newsletter 16, no. 3 (1991): 7. https://doi.org/10.5281/zenodo.7218249.

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This article 'Contents of Endogeneous Hormones GA, IAA, and ABA in Semidwarf Rice' 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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17

Tomita, Motonori, and Takatoshi Tanisaka. "The Gametic Non-Lethal Gene Gal on Chromosome 5 Is Indispensable for the Transmission of the Co-Induced Semidwarfing Gene d60 in Rice." Biology 8, no. 4 (2019): 94. http://dx.doi.org/10.3390/biology8040094.

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The gametic lethal gene gal in combination with the semidwarfing gene d60 causes complementary lethality in rice. Here, we attempted to ascertain the existence of gal and clarify male gamete abortion caused by d60 and gal. Through the F2 to F4 generations derived from the cross between D60gal-homozygous and d60Gal-homozygous, progenies of the partial sterile plants (D60d60Galgal) were segregated in a ratio of 1 semidwarf (1 d60d60GalGal):2 tall and quarter sterile (2 D60d60Galgal):6 tall (2 D60d60GalGal:1 D60D60GalGal:2 D60D60Galgal:1 D60D60galgal), which is skewed from the Mendelian ratio of

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18

George, T., R. Magbanua, M. Laza, G. Atlin, and S. S. Virmani. "Magat, a wetland semidwarf hybrid rice for high-yielding production on irrigated dryland." International Rice Research Notes 27, no. 1 (2002): 26–28. https://doi.org/10.5281/zenodo.6822724.

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This article 'Magat, a wetland semidwarf hybrid rice for high-yielding production on irrigated dryland' appeared in the International Rice Research Notes series, created by the International Rice Research Institute (IRRI) to expedite communication among scientists concerned with the development of improved technology for rice and rice-based systems. The series is a mechanism to help scientists keep each other informed of current rice research findings. The concise scientific notes are meant to encourage rice scientists to communicate with one another to obtain details on the research reported.

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19

Chaudhary, N., R. C. Chaudhary, O. N. Chaturvedi, I. J. Verma, and D. N. Dubey. "First semidwarf boro rice (Oryza sativa) germplasm collected in eastern Uttar Pradesh, India, breeds true." International Rice Research Notes 28, no. 1 (2003): 31. https://doi.org/10.5281/zenodo.7002608.

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This article 'First semidwarf boro rice (Oryza sativa) germplasm collected in eastern Uttar Pradesh, India, breeds true' appeared in the International Rice Research Notes series, created by the International Rice Research Institute (IRRI) to expedite communication among scientists concerned with the development of improved technology for rice and rice-based systems. The series is a mechanism to help scientists keep each other informed of current rice research findings. The concise scientific notes are meant to encourage rice scientists to communicate with one another to obtain details on the r

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20

Singh, S. P., K. G. Pillai, D. Pati, and Rani N. Shobha. "Effect of Planting Date on Grain Yield and Quality of Semidwarf Scented Rice Varieties." International Rice Research Notes 20, no. 1 (1995): 24–25. https://doi.org/10.5281/zenodo.7001341.

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This article 'Effect of Planting Date on Grain Yield and Quality of Semidwarf Scented Rice Varieties' appeared in the International Rice Research Notes series, created by the International Rice Research Institute (IRRI) to expedite communication among scientists concerned with the development of improved technology for rice and rice-based systems. The series is a mechanism to help scientists keep each other informed of current rice research findings. The concise scientific notes are meant to encourage rice scientists to communicate with one another to obtain details on the research reported.

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21

Ganesan, K., and M. Subramanian. "Genetic Studies of the F2 and F3 of Tall x Semidwarf Rice Varieties." International Rice Research Newsletter 15, no. 1 (1990): 4–7. https://doi.org/10.5281/zenodo.7179041.

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This article 'Genetic Studies of the F2 and F3 of Tall x Semidwarf Rice Varieties' 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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22

Reddy, G. V., K. J. Reddy, V. D. Naidu, M. Gopinath, and M. R. Reddy. "High Yielding, Semidwarf, Blast (Bl) - Resistant NLR9672-96 and NLR27999 for Southern Andhra Pradesh." International Rice Research Newsletter 11, no. 2 (1986): 6–7. https://doi.org/10.5281/zenodo.7121668.

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This article 'High Yielding, Semidwarf, Blast (Bl) - Resistant NLR9672-96 and NLR27999 for Southern Andhra Pradesh' 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

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23

A, VAIDYANATAHAN, ARUMUGACHAMY S, RAJESWARI S, et al. "Co47-A new short duration rice variety." Madras Agricultural Journal 87, March (2000): 5–9. http://dx.doi.org/10.29321/maj.10.a00405.

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CO 47 is a derivative of the cross IR 50 / CO 43. It is semidwarf (80-90 cm), non lodging and matures in 110-115 days. Average grain yield is 5.8 t ha. It possesses medium slender translucent white rice, with acceptable cooking qualities. It is resistant to blast disease. The rice variety, CO 47 is suitable for Sornavari, Kar and Kuruvai seasons and is a best alternative for ASD 18 and ADT 36 and it is recommended for replacing TKM 9 and IR 50.

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24

Yang, XiaoMing, Ling Jiang, Chao Yang, Hui Li, LingLong Liu, and JianMin Wan. "Semidwarf genesdkhas pleiotropic effects on rice (Oryza sativaL.) plant architecture." Plant Breeding 133, no. 3 (2014): 335–40. http://dx.doi.org/10.1111/pbr.12154.

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25

Mackill, D. J., M. M. Amante, B. S. Vergara, and S. Sarkarung. "Improved Semidwarf Rice Lines with Tolerance to Submergence of Seedlings." Crop Science 33, no. 4 (1993): 749–53. http://dx.doi.org/10.2135/cropsci1993.0011183x003300040023x.

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26

Cuevas‐Perez, Fęderico E., Luis E. Berrio, Daniel I. Gonzalez, F. Correa‐Victoria, and E. Tulande. "Genetic Improvement in Yield of Semidwarf Rice Cultivars in Colombia." Crop Science 35, no. 3 (1995): 725–29. http://dx.doi.org/10.2135/cropsci1995.0011183x003500030013x.

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27

Turner, Fred T., and Michael F. Jund. "Chlorophyll Meter to Predict Nitrogen Topdress Requirement for Semidwarf Rice." Agronomy Journal 83, no. 5 (1991): 926–28. http://dx.doi.org/10.2134/agronj1991.00021962008300050029x.

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28

Tomita, Motonori, and Jun Tanaka. "Semidwarf Gene d60 Affected by Ubiquitous Gamete Lethal Gene gal Produced Rare Double Dwarf with d30 via Recombination Breaking Repulsion-Phase Linkage on Rice Chromosome 2." Genes 10, no. 11 (2019): 874. http://dx.doi.org/10.3390/genes10110874.

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The genotype of gal and d60 were investigated in 33 rice varieties chosen from representative semidwarf and dwarf rice varieties. These were crossed with three tester lines, the d60Gal line (genotype d60d60GalGal), the D60gal line (Koshihikari, D60D60galgal), and the D60Gal line (D60D60GalGal). Each F1 plant was measured for culm length, and seed fertility. As a result, all F1 lines with the d60Gal line showed tallness and partial sterility, reduced by 25% in average from those with the D60gal line (Koshihikari) and the D60Gal line. These data indicated that the genotype of the 33 varieties is

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29

Qian, Qian, Longbiao Guo, Steven M. Smith, and Jiayang Li. "Breeding high-yield superior quality hybrid super rice by rational design." National Science Review 3, no. 3 (2016): 283–94. http://dx.doi.org/10.1093/nsr/nww006.

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Abstract The challenge of meeting the increasing demand for worldwide rice production has driven a sustained quest for advances in rice breeding for yield. Two breakthroughs that led to quantum leaps in productivity last century were the introduction of semidwarf varieties and of hybrid rice. Subsequent gains in yield have been incremental. The next major leap in rice breeding is now upon us through the application of rational design to create defined ideotypes. The exploitation of wide-cross compatibility and intersubspecific heterosis, combined with rapid genome sequencing and the molecular

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30

Tomita, Motonori, Hideumi Ebata, and Kohei Nakayama. "Large-Grain and Semidwarf Isogenic Rice Koshihikari Integrated with GW2 and sd1." Sustainability 14, no. 17 (2022): 11075. http://dx.doi.org/10.3390/su141711075.

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Intending to contribute to sustainable agriculture by “New Green Revolution,” we developed a large-grain/semidwarf isogenic line “Koshihikari sd1GW2” that incorporates both the large-grain gene GW2 and semidwarf gene sd1. GW2 homozygous B3F2 plant with the genomic background of Koshihikari was backcrossed twice with “Koshihikari sd1.” Koshihikari sd1GW2 fixed in BC5F3 was found to be 12.6 cm shorter than Koshihikari. Whole-genome sequencing proved one deletion in GW2 at 8,147,416 bp on chromosome 2 and the SNPs in sd1 at 38,267,510 bp on chromosome 1. The size of the DNA fragments integrated w

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31

Ishizaki, Kazuhiko, Satoshi Kaneda, and Takaaki Matsui. "Combination of Semidwarf and Blast Resistance gene in Rice Cultivar ‘Koshihikari’." Breeding Research 8, no. 2 (2006): 49–53. http://dx.doi.org/10.1270/jsbbr.8.49.

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32

McKenzie, K. S., and J. N. Rutger. "A New Semidwarf Mutant in a Long‐Grain Rice Cultivar 1." Crop Science 26, no. 1 (1986): 81–84. http://dx.doi.org/10.2135/cropsci1986.0011183x002600010019x.

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33

Angira, Brijesh, Christopher K. Addison, Tommaso Cerioli, et al. "Haplotype Characterization of the sd1 Semidwarf Gene in United States Rice." Plant Genome 12, no. 3 (2019): 190010. http://dx.doi.org/10.3835/plantgenome2019.02.0010.

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34

GUO, Tao, Xing HUO, De-Hua RAO, et al. "Identification and Fine Mapping of Semidwarf Gene iga-1 in Rice." Acta Agronomica Sinica 37, no. 6 (2011): 955–64. http://dx.doi.org/10.1016/s1875-2780(11)60027-8.

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35

Musfirah, R., Bakhtiar, and S. Zakaria. "Genotype and phenotype variability of BC1F1 progenies from backcross of C3 and Koshihikari." IOP Conference Series: Earth and Environmental Science 951, no. 1 (2022): 012043. http://dx.doi.org/10.1088/1755-1315/951/1/012043.

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Abstract Improvement of local rice variety could be conducted by crossing it with superior varieties. C3 is improved line of Acehnese rice ‘Cantik Manis’ by crossing it with the introduced Chinese rice variety Yin Zhan to make their progenies have shorter lifespan and good productivity. Although C3 line has been improved, this variety still has lifespan for about ± 135 days. Koshihikari is Japanese rice variety with its lifespan about 80-90 days. It is though that Koshihikari has various semidwarf gene such as sd-1 or other semidwarf genes. The strategy that can be used to decrease harvesting

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36

S, SRINIVASAN, MUTHIAH A.R, PURUSHOTHAMAN R.S, KUPPUSWAMY P, and MOHAN ANDRE SAVERY. "PY.5 (ARAVINDAR): A FINE SHORT DURATION RICE VARIETY." Madras Agricultural Journal 83, April (1996): 254–55. http://dx.doi.org/10.29321/maj.10.a01018.

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A new variety of paddy, PY.5 (Aravindar) has been released by the Government of Pondicherry from the Krishi Vigyan Kendra, Pondicherry for general cultivation. It was found to be a high yielder with good milling and cooking qualities. It recorded a mean grain yield of 6.3 tha with an increase of 12.5 and 43.4 per cent over IR.50 and TKM.9 respectively. It is semidwarf (90-95 cm) with long slender grain and matures in 100 to 105 days. It is moderately resistant to brown plant hopper and rice tungro virus with better storage potential.

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37

Estorninos, Leopoldo E., David R. Gealy, Ronald E. Talbert, and Edward E. Gbur. "Rice and red rice interference. I. Response of red rice (Oryza sativa) to sowing rates of tropicaljaponicaandindicarice cultivars." Weed Science 53, no. 5 (2005): 676–82. http://dx.doi.org/10.1614/ws-03-141r2.1.

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Field experiments were conducted at the Rice Research and Extension Center at Stuttgart, AR, in 1997 and 1998 to evaluate the growth response of Stuttgart strawhull (Stgstraw) red rice to sowing densities of 0, 50, 100, and 150 kg ha−1of ‘Kaybonnet,’ ‘Guichao,’ and ‘PI 312777’ rice cultivars. PI 312777 produced a greater leaf area index and tiller density than Kaybonnet when grown with red rice. In 1997, Stgstraw seed yields were lower when grown with PI 312777 and Guichao than with Kaybonnet. The increased weed population in 1998 did not increase seed yield production of red rice when grown w

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38

Spielmeyer, W., M. H. Ellis, and P. M. Chandler. "Semidwarf (sd-1), "green revolution" rice, contains a defective gibberellin 20-oxidase gene." Proceedings of the National Academy of Sciences 99, no. 13 (2002): 9043–48. http://dx.doi.org/10.1073/pnas.132266399.

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39

Zhang, Suobing, Renxiao Chen, Ling Zhao, et al. "A novel semidwarf mutant 02428ha in rice is caused by reduced gibberellin sensitivity." Acta Physiologiae Plantarum 33, no. 1 (2010): 113–22. http://dx.doi.org/10.1007/s11738-010-0523-9.

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40

Liang, Guohua, Xiaoying Cao, Jiongming Sui, et al. "Fine mapping of a semidwarf genesd-g in indica rice (Oryza sativa L.)." Chinese Science Bulletin 49, no. 9 (2004): 900–904. http://dx.doi.org/10.1007/bf03184008.

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41

Ottis, Brian V., Kenneth L. Smith, Robert C. Scott, and Ronald E. Talbert. "Rice yield and quality as affected by cultivar and red rice (Oryza sativa) density." Weed Science 53, no. 4 (2005): 499–504. http://dx.doi.org/10.1614/ws-04-154r.

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Previous research has examined the extent to which red rice affects both yield and grain quality of cultivated rice. However, this research was conducted over 15 yr ago. Modern long-grain rice cultivars have the potential to produce yields above 10,000 kg ha−1; however, it is unknown whether modern rice cultivars sacrifice competitiveness to achieve higher yields, or if, in fact, they are more competitive. Field studies were conducted in 2002 and 2003 at the Southeast Research and Extension Center near Rohwer, AR, and at the University of Arkansas Pine Bluff Research Farm near Lonoke, AR, to i

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42

Kwon, Sam L., Roy J. Smith, and Ronald E. Talbert. "Interference of Red Rice (Oryza sativa) Densities in Rice (O. sativa)." Weed Science 39, no. 2 (1991): 169–74. http://dx.doi.org/10.1017/s0043174500071423.

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Field experiments were conducted at Stuttgart, AR, from 1986 to 1988 to determine effects of season-long interference of red rice densities of 1, 2, 5, 10, 20, and 40 plants m–2on ‘Lemont’ and ‘Newbonnet’ rice cultivars. This interference reduced straw dry weights of Newbonnet and Lemont by 100 and 130 kg ha–1per red rice plant, and grain yields by 178 and 272 kg ha–1per red rice plant, respectively. Grain yield reductions were due to decreases in panicle number and length, and in number of grains per panicle. Ten plants m–2or more reduced height of Lemont, while 40 plants m−2were required to

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Ottis, Brian V., and Ronald E. Talbert. "Barnyardgrass (Echinochloa crus-galli) Control and Rice Density Effects on Rice Yield Components." Weed Technology 21, no. 1 (2007): 110–18. http://dx.doi.org/10.1614/wt-06-018.1.

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The response of new, high-yielding rice cultivars to varying barnyardgrass control levels and rice plant densities is not well understood. Studies were conducted in 2002 through 2004 at the Rice Research and Extension Center near Stuttgart, AR, to evaluate three new rice cultivars at plant densities ranging from 79 to 392 plants/m2grown in competition with barnyardgrass. Representatives from each of the three classes of long-grain rice produced in the United States were selected. ‘Wells’ represented conventional, long-grain rice, ‘CL161’ represented semidwarf, imidazolinone-tolerant, long-grai

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M, RANGASWAMY, WILFRED MANUEL W, SUNDRARM T, et al. "ASD 19 (AS 781/1) - NEW MEDIUM DURATION HIGH YIELDING RICE VARIETY FOR SOUTHERN DISTRICTS OF TAMIL NADU." Madras Agricultural Journal 82, september October (1995): 552–54. http://dx.doi.org/10.29321/maj.10.a01262.

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A new rice variety ASD 19 (AS 781/1) has been developed from the Rice Research Station, Tamil Nadu Agricultural University, Ambasamudram, for southern districts of TamilNadu. ASD19 recorded a mean yield of 5.81/ha in 127 days (240 trials). It outyielded IR 20 by 14.2 per cent. ADT 39 by 8.4 per cent, C043 by 11.9 per cent and Ponni by 13.2 per cent. The biological yield of ASD 19 is 16.5 t/ha (5.8 1 of grain; 10.7 Uha of straw) and its potential grain yield is 11.0 t/ha. It is semidwarf in stature with well exserted panicles. Grain is short slender white rice with 9.59 percent protein content.

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GUO, Tao, Xing HUO, De-Hua RAO, et al. "Identification and Fine Mapping of a Semidwarf Gene iga-1 in Rice." ACTA AGRONOMICA SINICA 37, no. 6 (2011): 955–64. http://dx.doi.org/10.3724/sp.j.1006.2011.00955.

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Roberts, S. R., J. E. Hill, D. M. Brandon, et al. "Biological Yield and Harvest Index in Rice: Nitrogen Response of Tall and Semidwarf Cultivars." Journal of Production Agriculture 6, no. 4 (1993): 585–88. http://dx.doi.org/10.2134/jpa1993.0585.

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LIANG, Guohua. "Fine mapping of a semidwarf gene sd-g in indica rice (Oryza sativa L.)." Chinese Science Bulletin 49, no. 9 (2004): 900. http://dx.doi.org/10.1360/04wc0074.

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Liu, Binmei, Yuejin Wu, Xue Xu, M. Song, M. Zhao, and X. D. Fu. "Plant height revertants of Dominant Semidwarf mutant rice created by low-energy ion irradiation." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 266, no. 7 (2008): 1099–104. http://dx.doi.org/10.1016/j.nimb.2008.02.045.

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Fischer, Albert J., Hector V. Ramírez, Kevin D. Gibson, and Beatriz Da Silveira Pinheiro. "Competitiveness of Semidwarf Upland Rice Cultivars against Palisadegrass (Brachiaria brizantha ) and Signalgrass (B. decumbens )." Agronomy Journal 93, no. 5 (2001): 967–73. http://dx.doi.org/10.2134/agronj2001.935967x.

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Bayu Wibisono, Viki, Dwi Mai Abdul Imam Buqori, Danny Agus Dyanshah, Sri Hartatik, and Mohammad Ubaidillah. "Karakterisasi Morfologi dan Molekuler Galur Padi Introduksi Golden Rice F8 terhadap Penyakit Blas dan Hawar Daun Bakteri." Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) 50, no. 3 (2022): 242–48. http://dx.doi.org/10.24831/jai.v50i3.41305.

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Golden rice merupakan padi yang di dalam endosperma bijinya memiliki kandungan β-karoten atau provitamin A. Beberapa upaya telah dilakukan untuk meningkatkan ketahanannya terhadap penyakit blas dan hawar daun bakteri (HDB). Hasil pemuliaan Golden rice telah mendapatkan turunan ke 8 (F8) yang bersifat stabil. Penelitian ini bertujuan untuk mengkarakterisasi agromorfologi dan genotipe galur padi introduksi Golden rice F8 PAC Nagdong/IR36/IR64. Penelitian dilakukan di Laboratorium Agroteknologi, Fakultas Pertanian, Universitas Jember. Benih yang digunakan yaitu tiga galur padi intorduksi Golden r

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