Seedling Vigor of Hybrid Rice as Related To Seed Rate in Nursery under Saline Soil Condition
Abstract: ABSTRACT
Raising seedling vigor of hybrid rice is more needed to get full expression of high yielding heterosis. Two field experiments were conducted at the experimental farm of Agricultural Research Station, El- Sirw, Domietta Governorate Egypt during 2002 and 2003 season to study the effect of various seeding rate on seeding vigor of hybrid rice. The experiments were laid out in a split plot design with four replication, where hybrid Viz, SK2025H, SK2058H and SK2047H occupied the main plot and the four seed rates namely 20, 30, 40 and 50 kg seed / fed occupied the sub plots.
The characteristics related to seedling vigor , Viz number of white roots/ plant, root length, root dry weight, number of tillers/ plant, shoot dry weight, shoot length shoot/ root ratio, number of leaves / plant were measured 25 days after sowing . The obtained results could be summarized as follow: various seed rates had significant effect on all studied traits. The low seed rate of 20 kg seed / fed gave better seedling vigor of hybrid rice, moreover , it gave the highest number of white roots leading to quick recovery, highest number of tillers/ seed, highest number of leaves / plant, high shoot/ root ratio, longest and heaviest roots. Meanwhile, the highest seed rate of 50 kg / fed was the worst as regarding seedling vigor. The hybrid rice varieties varied significantly in most of studied traits. The interaction effects were discussed in the results.
Publication year 2005
Pages 423-434
Availability location معهد بحوث المحاصيل الحقلية - مركز البحوث الزراعية - ش الجامعه – الجيزة
Availability number
Organization Name
serial title : Egypt. J. Agric.Res., 83 (5B) 423- 434 (2005).
Author(s) from ARC
Agris Categories Agricultural research
AGROVOC
TERMS		 Hybrids. Rice. Seedlings.
Publication Type Journal
↑