Research paper
1. Effect of Solar Ultraviolet-B plus End of Day Light and Its Exclusion on Growth Performance and Dry Weight Accumulation of Two Sweet Potato Cultivars (Ipomoea batatas L.) on Different Altitudes

Simeneh Tamrat Alemu; Amsalu Gobena Roro

Volume 7, Issue 1 , Winter 2020, Pages 1-11

http://dx.doi.org/10.22059/ijhst.2020.291104.322

Abstract
  UV-B radiation and EOD light (EOD) quality has both signaling and damaging effects based on the dosage and time of exposure. At highland areas UV-B decreases crop productivity and also light quality increase at high elevation area but EOD light quality effect was not researched based on altitude. Therefore, ...  Read More

Research paper
2. Alteration in Essential Oil Yield and Compositions of Multi-Cut Dracocephalum polychaetum Grown under Different Fertilization Methods

Abbas Fallah; S-Zahra Hosseini Cici

Volume 7, Issue 1 , Winter 2020, Pages 13-26

http://dx.doi.org/10.22059/ijhst.2020.287709.317

Abstract
  Sustainable agriculture can increase the efficiency of resource utilization, provide longer productivity and create a balance in the environment. A field experiment was conducted to study the use of organic and chemical fertilizers on biomass, essential oil content and essential oil yield as well as ...  Read More

Research paper
3. Propagation of Three Cultivars of Rosa hybrida L. through Stenting Method

Masoumeh Pourghorban; Pejman Azadi; Shahab Khaghani; Abbas Mirzakhani; Mahdi Changizi; Behzad Edrisi

Volume 7, Issue 1 , Winter 2020, Pages 27-36

http://dx.doi.org/10.22059/ijhst.2020.280528.293

Abstract
  In the commercial production of roses, introducing a method to reduce the time of propagation with maximum success is crucial. This study was conducted to investigate the effect of different concentrations (0, 1500, 3000, 4500 mg/L) of Indole-3-butyric acid (IBA) on propagation of three cultivars of ...  Read More

Research paper
4. Benefits of Silicon Nutrition on Growth, Physiological and Phytochemical Attributes of Basil upon Salinity Stress

Raziyeh Robatjazi; Parto Roshandel; Sa’dollah Hooshmand

Volume 7, Issue 1 , Winter 2020, Pages 37-50

http://dx.doi.org/10.22059/ijhst.2020.288551.318

Abstract
  In the present study, improvement of salt tolerance in basil (as a salt-sensitive plant) was investigated through silicon (Si) nutrition. Basil plants were subjected to silicon (0, 3 mM) and salinity (0, 50, 100, 150 and 200 mM NaCl) for a duration of one month. Salt stress significantly decreased the ...  Read More

Research paper
5. Effect of Pollination Time on Yield and Antioxidant Properties of Some Pistachio Cultivars

Masoud Sharifkhah; Davood Bakhshi; Mohammadreza Pourghayoumi; Soma Abdi; Hossein Hokmabadi

Volume 7, Issue 1 , Winter 2020, Pages 51-58

http://dx.doi.org/10.22059/ijhst.2020.285527.306

Abstract
  To obtain the best quality and quantity of pistachio fruits, knowing the most suitable time of pollination, is of paramount importance. This study was conducted to investigate the effect of pollination time, different stages of female flower development, including A (lower florets opened and clusters ...  Read More

Research paper
6. Response of Germination and Seedling Growth of Pepper cultivars to Seed Priming by Plant Growth Regulators

Saeedeh Saeidi Tombegavani; Bahman Zahedi; Sadegh Mousavi Fard; Ahmad Ahmadpour

Volume 7, Issue 1 , Winter 2020, Pages 59-68

http://dx.doi.org/10.22059/ijhst.2020.274293.275

Abstract
  In order to study the germination and growth of pepper seeds, a factorial experiment based on a completely randomized design with three replications was conducted. The first factor was consisting of five cultivars of pepper (Marquiza, Cadia, California Wonder, California Wonder 310 and California Wonder ...  Read More

Research paper
7. First report: Grafting of Three Iranian Commercial Pomegranate Cultivars on Drought Tolerant Rootstocks

Babak ValizadehKaji; Ahmadreza Abbasifar; Hosein Bagheri; Golnar Zandievakili; Atieh Daryabeigi

Volume 7, Issue 1 , Winter 2020, Pages 69-79

http://dx.doi.org/10.22059/ijhst.2020.284659.304

Abstract
  The objective of this study was to evaluate the stenting (grafted cutting) propagation of commercial pomegranate cultivars as scions on drought tolerant genotypes as rootstocks. The effect of drought stress on nine pomegranate rootstocks was analyzed. Cultivars including ‘Daneshgah 13’, ‘Daneshgah ...  Read More

Research paper
8. Effect of Cycocel and Uniconazole on Some Morphological and Biochemical Properties of Zinnia

ٍٍEbrahim Alami; Mahnaz Karimi

Volume 7, Issue 1 , Winter 2020, Pages 81-91

http://dx.doi.org/10.22059/ijhst.2020.285768.307

Abstract
  One of the important objectives during the production cycle of ornamental plants is to regulate and control their growth. Hence, application of some plant growth regulators such as uniconazole (UN) and cycocel (CCC) is considered as an efficient method for reaching to this objective. To investigation ...  Read More