in order to study the seed yield stability of oilseed rape lines, a series of experiments were carried out at karaj, kermanshah, tabriz, hamedan and arak agricultural experiment stations using 10 lines, two control varieties of winter rapeseed and 3 promising lines (a total of 15 genotypes) in randomized complete block designs with three replications for two cropping seasons (2009-11). analysis...

this research was carried on to evaluate the response of rapeseed varieties to salt stress. in this experiment growth response of three rapeseed varieties (fornex, consoul and okamer) in four salinity levels (0, 40, 80 and 120 mmol nacl) was investigated using a factorial arrangement of factors in a complete randomized block design with three replications. results incicated that in the highest ...

Abstract Water stress is a major factor affecting rice production. causes changes in physiology and morphology for plant tolerance to water stress. In this study, six varieties were examined their The check comparisons of tolerant, moderate tolerant sensitivity stress, namely Situ Patenggang, Towuti IR 64; while the test study are three Aceh traditional varieties. significantly influences numbe...

Meloidogyne chitwoodi races 1 and 2 and M. hapla reproduced on 12 cultivars of Brassica napus and two cultivars of B. campestris. The mean reproductive factors (Rf), Rf = Pf at 55 days / 5,000, for the three nematodes were 8.3, 2.2, and 14.3, respectively. All three nematodes reproduced more efficiently (P < 0.05) on B. campestris than on B. napus. Amending M. chitwoodi-infested soil in plastic...

Options to tackle the sustainability challenges faced in the production of rice, including global and local environmental perspectives, need to be discussed. Here, the global warming potential, water consumption and cumulative energy demand were analyzed using a life-cycle assessment to highlight the sustainability aspects of rice production in Taiwan, where a mixed organic and conventional ric...

Tomato (Lycopersicon esculentum Mill.) is one of the most important and widely grown vegetable crops both during rainy dry seasons for its fruit by smallholder farmers, commercial state private farms in Ethiopia. Field study was conducted 2018 to 2020 cropping season at highland areas West Hararghe aimed evaluating performance recently released tomato varieties. Treatments used were composed th...

The long-term fitness of individuals is examined in complex and temporally dynamic ecosystems. We call this multigeneration fitness measure "future fitness". Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae) is a polyphagous insect that feeds on many wild and cultivated hosts. While four generations of H. zea occur during the cropping season in the U.S. Mid Southern agroecosysem, the latter two...

Ultrasound-assisted extraction (UAE) and conventional solid-liquid extraction were applied to extract total antioxidants from two rapeseed varieties. The antioxidant capacities (AC) of winter and spring rapeseed cultivars were determined by four different analytical methods: ferric reducing antioxidant power (FRAP), cupric reducing antioxidant capacity (CUPRAC), 2,2'-diphenyl-1-picrylhydrazyl (...

To break the yield ceiling of rice production, a super rice project was developed in 1996 to breed rice varieties with super high yield. A two-year experiment was conducted to evaluate yield and nitrogen (N)-use response of super rice to different planting methods in the single cropping season. A total of 17 rice varieties, including 13 super rice and four non-super checks (CK), were grown unde...