Productivity of some forage grasses under foliar sprinkler irrigation and foliar application of potassium nitrate under salinity stress

By: Kandil AA, Shareif AE

• Department of Agronomy, Mansoura University, Egypt

Field experiment was conducted during 2013/2014 and 2015 seasons was aimed to evaluate productivity of Rhodes and Blue panic grasses as well as Alfalfa under sprinkler irrigation with foliar application of potassium nitrate that enable plants to cope with water stress. Each two forage grasses beside alfalfa were conducted in separate experiments.

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Effect of foliarly applied potassium on Capsicum Annuum L. grown under sodium chloride stress--IJAAR

Authors: Sawaira Naz1, Muhammad Hamayun1, Aqib Sayyed1, Seema Gul1, Zahida Parveen2,
Muhammad Khalid1, Humaira Gul1

Salinity is one of the environmental factors that has a critical influence on the germination and plant establishment. In present study, two independent experiments were conducted to investigate the effects of salinity and potassium on germination, seedling establishment and growth of Capsicum annuum L.

A range of sodium chloride concentrations control (non-saline), 60mM NaCl (EC=8.5mS/cm), 100mM (EC=11.73mS/cm) showed reduction in germination percentage and different parameters of seedling stage (plumule length, root length, fresh and dry biomass). Application of potassium (400 ppm and 800 ppm KNO3) enhances the germination percentage and seedling growth. To study the vegetative growth, some biochemical aspects and ionic composition of different plant parts of Capsicum annuum L., a pot experiment was conducted in Botanical Garden, Abdul Wali Khan University Mardan, Pakistan. The experiment was laid out in a completely randomized factorial design with three replicates. Potassium nitrate was used as the potassium source.

The rate of potassium treatment was 400 and 800 ppm. Plants were subjected to 60mM (EC=8.5mS/cm), 100mM (EC=11.73mS/cm) levels through addition of NaCl to irrigation water. Results showed that by increasing salt concentration different growth parameters (Plant height, root length, number of leaves, fresh and dry biomass) exhibited decrease. Electrolyte leakage, chlorophyll content, carotenoids, total proteins showed increase under different salt treatments. It has been concluded that application of both concentration of KNO3 (400 & 800 ppm) through leaves exhibited enhancement effect on growth parameters under normal as well as saline condition but 800 ppm KNO3 concentration exhibited more pronounced alleviating effect under NaCl stress.

FULL ARTICLES AVAILABLE AT: Volume 6, Number 5, May 2015 – IJAAR
PUBLISHED JOURNALS: International Journal of Agronomy and Agricultural Research (IJAAR)

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Check sowing date and seed priming on the essential oil Dracocephalum moldavicaL.-IJAAR

• Masome Norali Gare Mosa, Mojtaba Fateh*

1. Department of Agriculture, Miandoab Branch, University of Medicinal Plants Miandoab Islamic Azad, Iran

Moldavian balm (Dracocephalum moldavica L.) grasses, annuals, belonging to the mint family. Vegetative body of the plant contain essential oil has antiseptic, antiviral, antibacterial, antifungal, is And to relieve headaches and colds, and spasms of the kidney and used in the food industry and cosmetics.

In order to evaluate the agronomic characteristics Dracocephalum moldavica influenced by planting time and priming, Agricultural Experiment Station, Agricultural and Natural Resources Research Station in 2013 in the city of West Azarbaijan province was conducted in Sect. The experiment was a split plot in a randomized complete block design with three replications. Main plots consisted of three sowing dates (15 May, May 31 and 15 June) and sub-plots included four levels of priming (Zn (0/02 percent), potassium nitrate (0/4 percent), tap water and control (without priming) were studied.

According to the data, it is observed that the maximum height of plants treated with potassium nitrate is Moldavian balm And a minimum height of 78 cm and an average value for the control. The most essential Moldavian balm (0/7%) of potassium nitrate is priming. Thus it can be concluded that the time of planting and priming with potassium nitrate can be improved morphological characteristics and performance of the plant.

FULL ARTICLE AVAILABLE AT: Volume 6, Number 4, April 2015 – IJAAR
PUBLISHED JOURNAL: International Journal of Agronomy and Agricultural Research (IJAAR)

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