in recent years, surplus usage of chemical fertilizers and inattention the importance organic matter to improve soil fertility, leading to increasing use of chemical fertilizer, environmental pollution and etc. in order to study the different fertilizer levels (organic, chemical and combined) on yield of grain corn (s.c.704) experiment was conducted at the research farm faculty of agriculture t...

Tamarix ramosissima has bi-seasonal flowering and fruit-setting characteristics. This study compared the morphology and germination characteristics of seeds from Tamarix ramosissima plants during the spring flowering period and the summer flowering period. The results are as follows: there is no significant difference in morphology, such as size and thousand-seed weight, between seeds from diff...

Objective: To evaluate the quality of seeds tomato fruits (Solanum lycopersicum Mill.) produced in high temperture (HT) during different phases development. Design/Methodology/Approach: Seeds Moneymaker variety were planted a ventilated greenhouse (control treatment, CT) with maximum mean temperature (MMT) 31.5 °C. A second artificial heating (MMT 36.5 ºC) was used for HT treatments. When anthe...

BACKGROUND Seed size has significant implications in ecology, because of its effects on plant fitness. The hybrid seeds that result from crosses between crops and their wild relatives are often small, and the consequences of this have been poorly investigated. Here we report on plant performance of hybrid and its parental transgenic oilseed rape (Brassica napus) and wild B. juncea, all grown fr...