A study about drought stress effects on grain yield components of three sunflower cultivars
Journal Title: International journal of Advanced Biological and Biomedical Research - Year 2014, Vol 2, Issue 3
Abstract
In order to investigate the effects of drought stress on grain yield and its components, a study was carried out (2011) as split plots in randomized complete blocks design in Isfahan (32° 40' N,51° 48' E). Main factor was drought stress in four levels including irrigation after 80, 100, 120, and 140 mm evaporation from evaporation pan (class A) and subplots were three cultivars (Sirena, Record, and Euroflore).Grain number per capitulum, 1000 grains weight, grain yield, biological yield, harvest index, oil percentage, and oil yield were measured. Results showed that by increasing the stress from 80 to 140 mm, all traits except oil percentage were decreased. The first irrigation treatment (80mm) seems to be the most appropriate treatment for this plant considering the highest grain and oil yields. Record cultivar produced the highest yield under 80 and 100 mm treatments while Sirena and Euroflore had the highest yields under 120 and 140mm treatments, respectively. Therefore, cultivating record will be better under drought stress or dry farming cultivation.
Authors and Affiliations
Mohammad Hadi Hemmati| Department of Agronomy and Plant Breeding, Isfahan (khorasgan) Branch, Islamic Azad University, Isfahan, Iran, Ali Soleymani| Department of Agronomy and Plant Breeding, Isfahan (khorasgan) Branch, Islamic Azad University, Isfahan, Iran, E-mail: a_soleymani444@yahoo.com
Keywords
Related Articles
- EP ID EP13039
- DOI -
- Views 311
- Downloads 15
Changes of Temperature Regimes in Khuzestan
Temperature is one of the most important climate variables that many economic and social plans related to its changes. Because of The importance of this issue, this study investigated the changes of it in the province...
An Investigation on Antirubella Immunoglobulin Titeres and the Level of Protectivity Among 5 Major Highly Populated Cities of Gilan Province
Objective: Rubella is a viral disease with minor morbidity, unless it is contracted by a pregnant woman in early pregnancy that leads to congenital Rubella syndromes. Rubella occurrence during the first trimester leads...
Length-weight relationships of Vimba vimba persa in southern coasts of the Caspian Sea Guilan province- Iran
Length weight relationships of Vimba vimba persa were studied. For this purpose 174 fish samples were collected by gill nets, beach seine and purse seine from March through June 2008 at two Guilan fisheries catch stati...
Effects of Salicylic acid and Jasmonic acid on Hill Reaction and Photosynthetic Pigment (Dracocephalum Moldavica L.) in Different Levels of Drought Stress
Objective: In order to study the effect of drought stress, salicylic acid (SA) and jasmonic acid (JA) foliar application on Hill reaction and photosynthetic pigments. Methods: Experiment was done as factorial on the ba...
The Effects of Use Medicinal Plants on Rumen Fermentation Parameters in Ruminants
Rumen is a persistent and specific ecosystem consists of bacteria, protozoa and fungus where feed fermentation takes place in it. Produced Hydrogen in rumen can be used in the synthesis of the volatile fatty acids and...