PRE- SOWING SEED TREATMENTS RELATED TO SEEDLING VIGOR, GROWTH AND GRAIN YIELD OF EGYPTIAN HYBRID RICE UNDER SALINE SOIL
El-Ekhtyar, A., Zayed, B., Abd Allah, A., El-Abd, A., Abdelkhalik, A. (2008). PRE- SOWING SEED TREATMENTS RELATED TO SEEDLING VIGOR, GROWTH AND GRAIN YIELD OF EGYPTIAN HYBRID RICE UNDER SALINE SOIL. EKB Journal Management System, 33(11), 7759-7769. doi: 10.21608/jpp.2008.171499
A. M. El-Ekhtyar; Bassiouni A. Zayed; A. A. Abd Allah; A. B. El-Abd; A. F. Abdelkhalik. "PRE- SOWING SEED TREATMENTS RELATED TO SEEDLING VIGOR, GROWTH AND GRAIN YIELD OF EGYPTIAN HYBRID RICE UNDER SALINE SOIL". EKB Journal Management System, 33, 11, 2008, 7759-7769. doi: 10.21608/jpp.2008.171499
El-Ekhtyar, A., Zayed, B., Abd Allah, A., El-Abd, A., Abdelkhalik, A. (2008). 'PRE- SOWING SEED TREATMENTS RELATED TO SEEDLING VIGOR, GROWTH AND GRAIN YIELD OF EGYPTIAN HYBRID RICE UNDER SALINE SOIL', EKB Journal Management System, 33(11), pp. 7759-7769. doi: 10.21608/jpp.2008.171499
El-Ekhtyar, A., Zayed, B., Abd Allah, A., El-Abd, A., Abdelkhalik, A. PRE- SOWING SEED TREATMENTS RELATED TO SEEDLING VIGOR, GROWTH AND GRAIN YIELD OF EGYPTIAN HYBRID RICE UNDER SALINE SOIL. EKB Journal Management System, 2008; 33(11): 7759-7769. doi: 10.21608/jpp.2008.171499

PRE- SOWING SEED TREATMENTS RELATED TO SEEDLING VIGOR, GROWTH AND GRAIN YIELD OF EGYPTIAN HYBRID RICE UNDER SALINE SOIL

Journal of Plant Production
Article 2, Volume 33, Issue 11, November 2008, Page 7759-7769  XML PDF (594 K)
Document Type: Original Article
DOI: 10.21608/jpp.2008.171499
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Authors
A. M. El-Ekhtyar1; Bassiouni A. Zayed email 2; A. A. Abd Allah1; A. B. El-Abd1; A. F. Abdelkhalik1
1Rice Research and Training Centre , Sakha, Kafr El Sheikh, FCRI, ARC, Egypt
2Rice Research Department, Field Crops Research Institute, Sakha, Kafr Elsheikh, ARC, Egypt.
Abstract
To exp < /strong>lore hybrid rice cultivation under Egyptian saline soils using its hybrid vigor in salinity tolerance, two field experiments were conducted under saline soil during 2005 and 2006 seasons at Research Farm of El Sirw Agriculture Research Station. Enhancing seedling vigor and salinity tolerance of hybrid rice as well as its grain yield were the main approaches during the set up of this experiment. The type of experimental soil was clayey with salinity levels of 7.5 and 7.35 dS/m in 2005 and 2006 seasons, respectively.
For above mentioned purposes, the seeds of Egyptian  SK2034H rice hybrid  (Egyptian Hybrid 1) were soaked in 1-water (as a control treatment), 2- ZnSo4(2%) , 3- diammounum phosphate (DAP)(2%), 4- NaCl(1%) ,5-GA3 (120 mg/l), 6-cytokinine (75 mg/l)  and 7- Salicylic Acid  (80mg /L). The seedling vigor of SK2034H hybrid rice was measured at 30 days after sowing whereas, root and shoot traits as well as leaves and root chemical contents were estimated. Furthermore, growth and grain yield and its components were estimated.
The obtained results showed that pre-sowing seed treatments were found to be significantly effective in enhancing seedling vigor of SK2034H and improved its growth and its favorable nutrient content such as N, P and K.  Therefore, the salinity withstanding of hybrid rice was raised  which resulted in proper growth and reasonable grain yield  and its components under salt stress. The most effective treatments were GA3, NaCl and Salicylic Acid. These treatments clearly demonstrated their desirable effect on seedling vigor, growth parameters and grain yield of hybrid rice under salt stress. Moreover, the all studied traits were significantly affected by the current treatments involving seedling vigor traits, rice growth traits at heading and grain yield and its components.
Keywords
Hybrid; Seedling vigor; Salinity; Seed soaking
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