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Evaluation of Some Sunflower Genotypes under Drought Condition in Newly Reclaimed Sandy Soil

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Last updated: 01 Jan 2025

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Abstract

WATER stress is one of the severe limitations of crop growth especially in arid and semi-arid regions of the world as it has a vital role in plant growth and development at all growth stages. The aim of the present study is to evaluate the response of twelve sunflower genotypes to three levels of water supply to identify the more suitable one for drought condition. Two field experiments were conducted to evaluate twelve diverse sunflower genotypes grown under adequate (3000 m3), moderate (2000 m3) and severe (1000 m3) water regime for chlorophyll index, transpiration rate, leaf water content, plant height, head diameter, seeds/head, 1000-seed weight, seed and oil yield. Moderate and severe water regimes had a significant impact on transpiration
rate, leaf water content, yield contributing characters and oil yield of all sunflower genotypes. However sunflower genotypes showed different response to the different water regimes. The highest seed and oil yields were attained in L990 and Giza 102 under adequate water supply, while L38 was the best under moderate and severe water regime.On the basis of the obtained results, sunflower genotype L990 could be recommended to grow under adequate water supply, while L38 for the moderate and severe water regimes.

DOI

10.21608/agro.2012.96

Keywords

<I> Helianthus annuus</I>, drought, Drip irrigation, physiological characters, Seed and oil yield, Water deficit

Volume

34

Article Issue

2

Related Issue

42

Issue Date

2012-12-01

Receive Date

2012-06-14

Publish Date

2012-12-31

Page Start

121

Page End

139

Print ISSN

0379-3575

Online ISSN

2357-0288

Article File

AGRO_Volume 34_Issue 2_Pages 121-139.pdf

PDF . 3.2MB

Link

https://agro.journals.ekb.eg/article_96.html

Detail API

https://agro.journals.ekb.eg/service?article_code=96

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Original Article

Type Code

17

Publication Type

Journal

Publication Title

Egyptian Journal of Agronomy

Publication Link

https://agro.journals.ekb.eg/

MainTitle

Evaluation of Some Sunflower Genotypes under Drought Condition in Newly Reclaimed Sandy Soil

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Article

Created At

22 Jan 2023