Effect of Seedling Age and Seeding Rate in Nursery on Some Agronomic Traits and Seed Yield of Rice (Oryza sativa L.) cv. Tarom Hashemi
To study the effects of seedling age and seeding rate in nursery on some quantitative traits of rice, a field experiment was conducted as split plot in a randomized complete block design with three replications in Amol during the 2012 growing season. Seedling ages with three levels (20, 30 and 40 da...
| Main Authors: | , |
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| Format: | Article |
| Language: | fas |
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Islamic Azad University, Tabriz Branch
2016-06-01
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| Series: | Ikufīziyuluzhī-i Giyāhān-i Zirā̒ī |
| Subjects: | |
| Online Access: | http://jcep.iaut.ac.ir/article_523708_300d99019c99be95808a62ef1a60d379.pdf |
| _version_ | 1828286246484443136 |
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| author | Norollah Kheyri Hamid Reza Mobasser |
| author_facet | Norollah Kheyri Hamid Reza Mobasser |
| author_sort | Norollah Kheyri |
| collection | DOAJ |
| description | To study the effects of seedling age and seeding rate in nursery on some quantitative traits of rice, a field experiment was conducted as split plot in a randomized complete block design with three replications in Amol during the 2012 growing season. Seedling ages with three levels (20, 30 and 40 days old) were considered as main plots and seeding rates with four levels (10, 30, 50 and 70 kg.ha-1) as sub-plots. Results showed that the effect of seedling age on panicle length, total tiller number and fertile tillers per hill, percent of furtile and unfurtile florets and harvest index and seeding rates on seed yield were significant. The interaction effects of experimental treatments on plant height, stem and panicle lengths, number of furtile and unfurtile florets and harvest index were also significant. Increasing seedling age from 20 to 40 days, decreased the total tiller number per hill, number of fertile tillers, percent of furtile florets and harvest index, while, they increased panicle length and number of unfilled florets. The highest seed yield (3033 kg.ha-1) was obtained by seeding rate of 30 kg.ha-1. Increasing seeding rates beyond 30 kg.ha-1, decreased the seed yield by 15% (2567 kg.ha-1). Therefore, using 20 days old seedlings and seeding rate of 30 kg.ha-1 in the nursery plots can be recommended to the Tarom Hashemi cultivar to the experimental site. |
| first_indexed | 2024-04-13T09:29:04Z |
| format | Article |
| id | doaj.art-79d71e31e46548f7bab543893ddd590a |
| institution | Directory Open Access Journal |
| issn | 2538-1822 2476-731X |
| language | fas |
| last_indexed | 2024-04-13T09:29:04Z |
| publishDate | 2016-06-01 |
| publisher | Islamic Azad University, Tabriz Branch |
| record_format | Article |
| series | Ikufīziyuluzhī-i Giyāhān-i Zirā̒ī |
| spelling | doaj.art-79d71e31e46548f7bab543893ddd590a2022-12-22T02:52:21ZfasIslamic Azad University, Tabriz BranchIkufīziyuluzhī-i Giyāhān-i Zirā̒ī2538-18222476-731X2016-06-01102 (38) تابستان431446523708Effect of Seedling Age and Seeding Rate in Nursery on Some Agronomic Traits and Seed Yield of Rice (Oryza sativa L.) cv. Tarom HashemiNorollah Kheyri0Hamid Reza Mobasser1Ph.D. Student, Department of Agronomy, Faculty of Agriculture, Gorgan Branch, Islamic Azad University, Gorgan, IranAsistant Professor, Department of Agronomy, Faculty of Agriculture, Ghaemshahr Branch, Islamic Azad University, Ghaemshahr, IranTo study the effects of seedling age and seeding rate in nursery on some quantitative traits of rice, a field experiment was conducted as split plot in a randomized complete block design with three replications in Amol during the 2012 growing season. Seedling ages with three levels (20, 30 and 40 days old) were considered as main plots and seeding rates with four levels (10, 30, 50 and 70 kg.ha-1) as sub-plots. Results showed that the effect of seedling age on panicle length, total tiller number and fertile tillers per hill, percent of furtile and unfurtile florets and harvest index and seeding rates on seed yield were significant. The interaction effects of experimental treatments on plant height, stem and panicle lengths, number of furtile and unfurtile florets and harvest index were also significant. Increasing seedling age from 20 to 40 days, decreased the total tiller number per hill, number of fertile tillers, percent of furtile florets and harvest index, while, they increased panicle length and number of unfilled florets. The highest seed yield (3033 kg.ha-1) was obtained by seeding rate of 30 kg.ha-1. Increasing seeding rates beyond 30 kg.ha-1, decreased the seed yield by 15% (2567 kg.ha-1). Therefore, using 20 days old seedlings and seeding rate of 30 kg.ha-1 in the nursery plots can be recommended to the Tarom Hashemi cultivar to the experimental site.http://jcep.iaut.ac.ir/article_523708_300d99019c99be95808a62ef1a60d379.pdfGrain yieldNurseryRiceSeed densitySeedling age |
| spellingShingle | Norollah Kheyri Hamid Reza Mobasser Effect of Seedling Age and Seeding Rate in Nursery on Some Agronomic Traits and Seed Yield of Rice (Oryza sativa L.) cv. Tarom Hashemi Ikufīziyuluzhī-i Giyāhān-i Zirā̒ī Grain yield Nursery Rice Seed density Seedling age |
| title | Effect of Seedling Age and Seeding Rate in Nursery on Some Agronomic Traits and Seed Yield of Rice (Oryza sativa L.) cv. Tarom Hashemi |
| title_full | Effect of Seedling Age and Seeding Rate in Nursery on Some Agronomic Traits and Seed Yield of Rice (Oryza sativa L.) cv. Tarom Hashemi |
| title_fullStr | Effect of Seedling Age and Seeding Rate in Nursery on Some Agronomic Traits and Seed Yield of Rice (Oryza sativa L.) cv. Tarom Hashemi |
| title_full_unstemmed | Effect of Seedling Age and Seeding Rate in Nursery on Some Agronomic Traits and Seed Yield of Rice (Oryza sativa L.) cv. Tarom Hashemi |
| title_short | Effect of Seedling Age and Seeding Rate in Nursery on Some Agronomic Traits and Seed Yield of Rice (Oryza sativa L.) cv. Tarom Hashemi |
| title_sort | effect of seedling age and seeding rate in nursery on some agronomic traits and seed yield of rice oryza sativa l cv tarom hashemi |
| topic | Grain yield Nursery Rice Seed density Seedling age |
| url | http://jcep.iaut.ac.ir/article_523708_300d99019c99be95808a62ef1a60d379.pdf |
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