Abstract: Two field experiments were conducted at the Rice Research and Training Center (RRTC), Sakha, Kafr El-Sheikh, Egypt, in 2003 and 2004 summer seasons to study the effect of some culture practices on some growth characters of the newly released rice cultivar, Sakha 104, grown after Egyptian clover with the broadcast seeding method.
Each experiment involved ten treatments as follows:
All recommended practices (T1), without Zinc (T2), without herbicide (T3), high seeding rate (T4), no soaking (T5), irrigation every six days (T6), irrigation every nine days (T7), one dose of nitrogen (T8), very late sowing on June 19th (T9) and none of the recommended practices (T10).
The most important finding of this study could be summarized as follows:
1- significant differences were detected among the different treatments on growth, grain yield and its components and some grain quality characters.
2- All recommended practices (T1) gave the highest values of chlorophyll content, LAI and dry matter content, while none of the recommended practices (T10), irrigation every nine days (T7), very late sowing on June 19th (T9) and one dose of nitrogen (T8) treatments were the lowest.
3- Grain yield and its components were significantly increased as all recommended practices (T1) was applied. Consequently, the grain yield components, especially number of paniclesLm2, panicle weight, number of filled grains/panicle and 1000-grain weight could be considered as important component of grain yield in this study.
4- Hulling, milling and head rice traits recorded highly significant differences among treatments. All recommended practices (T1) gave the highest hulling, milling and head rice percentage, while none of the recommended practices (T10), irrigation every nine days (T7) and late sowing (T9) practices significantly reduced these three traits.
5- Te study indicated that missing any or all recommended cultural practices lead to decreased in grain yield of the new released rice cultivar (Sakha 104) by about 17-50 % and from 16 – 52 % in the two successive seasons. The most important factor and limiting yield is the irrigation intervals and sowing date. Prolonged irrigation interval to nine days reduced grain yield by 47.42 and 50.73 % in the first and second seasons, respectively. Late sowing date to June 19th lead to reduction in grain yield by 43.77 and 45.46 % in the first and second seasons. However, the reduction due to other practices was ranged 16.62 to 28.37 % in the first season and from 16.24 and 27.0 5 in the second season.
Publication year 2006
Pages 31-47
Availability location معهد بحوث المحاصيل الحقلية- 9شارع الجامعة- الجيزة
Availability number
Organization Name
serial title مجلة البحوث الزراعية – جامعة طنطا
Author(s) from ARC
Agris Categories Agriculture - General aspects
Publication Type Journal