Investigating the response of different agro-physiological traits of Iranian rice cultivars in shirodi and tarom local with consumption of nutritional resources (chemical, organic) under low irrigation stress conditions
yousof Niknejad
1
(
Department of Agronomy, Ayatollah Amoli Branch Islamic Azad University, Amol, Iran
)
jaber mehdiniya Afra
2
(
Phd students of Agronomy, Islamic Azad University, Ayatollah Amoli Branch, Amol. Iran
)
Hormoz Falah Amoli
3
(
Department of Agronomy, Ayatollah Amoli Branch Islamic Azad University, Amol, Iran
)
Davood barari Tari
4
(
Department of Agronomy, Ayatollah Amoli Branch Islamic Azad University, Amol, Iran
)
Keywords: Chlorophyll, Humic acid, local Tarom, paddy seed yield, fertilizer sources,
Abstract :
In order to Investigating the response of different agro-physiological traits of Iranian rice cultivars in shirodi and tarom local to different nutritional sources (chemical , organic) under low Irrigation stress Conditions, a split factorial experiment was conducted in a randomized complete block design with three replications at agricultural farm, , located in the city of Sari in 2016 Irrigation stress treatments were performed in three levels:Low irrigation stress in the initiation stage of the tillering (15 days after the installation of the work), Low irrigation stress in the initiation stage of the panicle Full and the lack of stress (controls) as the main factor, through irrigation cut and irrigation again after the appearance of surface cracks The type of feeding system was considered in four levels of Vermicompost and compost azolla (6 and 8 tons per hectare respectively), humic acid (4/5 litres per 1000) and the common chemical fertilizers and cultivars were considered on two levels (Shirodi and local Tarom) in factorial form as a subagent. The results showed that the maximum paddy seed yield under under low Irrigation stress conditions was obtained at 5577.9 kg / ha using Humic acid in Shiroudi cultivar. The highest biological yield and harvest index, 1000 grain weight were obtained under conditions of stress condition applied to the inoculation beginning with the use of humic acid fertilizer sources in Shiroudi cultivar. Total chlorophyll , Chlorophyll a , Chlorophyll b, maximum In order of magnitude 5.23,2.76,2.47 Percentage in non-stress conditions was obtained by using humic acid in local Tarom cultivar.according to the results of this experiment, humic acid played a significant role in increasing the quantity of the product by reducing the damage caused by stress in the cultivars.Key words: yield,yield components ,rice, under low Irrigation stress,organic and chemichal fertilizer.
