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228039

GROWTH AND YIELD OF HYBRID AND INBRED RICES AS INFLUENCED BY N SPLITTING UNDER SALINE SOIL CONDITIONS

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Last updated: 24 Dec 2024

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Abstract

Field experiments were conducted at El-Sirw Agricultural Research Station, Dammictta Governorate during 2004 and 2005 seasons to find out the proper time and split of N application on source, sink and yield potential of hybrid rice. The treatments of nitrogen splitting consisted of, 2/3basal(B) + 1/3panicle initiation (PI),1/313+1/3at [diming stage (T)+ 1/3PI, 1/3T+ 1/3 midtillering (MT)+ 1/3PI, 1/3T+ 1/3PI+ 1/3 flowering (F), 1/4B+ 1/4MT+ 1/4PI+ 1/4F, 1/4T+ 1/4MT+ 1/4PI+ 114F, 1/4B+ 1/4T+ 1/4Mt+ 1/4PI -5.0 kg urea sprayed at F (2% of urea), and weekly application of 18kg N ha'' started just before transplanting (DAT) (10 times). The tested rice varieties included three hybrids, SK2025H, SK2058H &SK2047H and one inbred i.e. Sakha 104. The most promsing results could be summarized as follows, the hybrid rice varieties had higher variation in all parameters under study over Sakha 104. The best one was SK2025H in grain yield with out any significant differences with those produced by other hybrids in the second season while with only Sk2047H in the first season. Sk2025H was better in filled grains and sink capacity as well as harvest index while SK2047 had higher values of panicle numbers and panide weight. The three tested hybrids did not significantly vary in majority of their source parameters. Furthermore, all nitrogen basal application were not so favorable under saline soil condition for all varieties under study. Three or four nitrogen splitting i.e.1/3T+1/3PI+1/3F for Sakha 104 and Sk2025H and/or1/4T+1/4MT+1/4PI-1/4F for the rest of tested hybrids markedly improved all source and sink parameters leading to full expression of high yield potentiality for hybrid rice getting high grain yield in saline soil. The correlation between source, sink parameters and the grain yield show that most of them significantly correlated with grain yield.

DOI

10.21608/ejar.2007.228039

Authors

First Name

BASYONY A.

Last Name

ZAYED

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Affiliation

Rice Research and Training Center, Field Crops Research Institute, Agricultural Researdi Center, Sakha - Kafr El-Sheikh, Egypt

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Volume

85

Article Issue

4

Related Issue

32590

Issue Date

2007-12-01

Receive Date

2006-11-08

Publish Date

2007-12-01

Page Start

1,423

Page End

1,439

Print ISSN

1110-6336

Online ISSN

2812-4936

Link

https://ejar.journals.ekb.eg/article_228039.html

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https://ejar.journals.ekb.eg/service?article_code=228039

Order

24

Type

Original Article

Type Code

1,041

Publication Type

Journal

Publication Title

Egyptian Journal of Agricultural Research

Publication Link

https://ejar.journals.ekb.eg/

MainTitle

GROWTH AND YIELD OF HYBRID AND INBRED RICES AS INFLUENCED BY N SPLITTING UNDER SALINE SOIL CONDITIONS

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Article

Created At

22 Jan 2023