twenty accessions of cultivated grass pea (lathyrus sativus l.) and wild species of lathyrus l.collected from western and southern regions of iran were evaluated for their mitotic metaphase chromosomalcharacteristics. all populations comprising 16 populations of cultivated l. sativus and 4 wild populations oflathyrus l. were diploid, 2n=2x=14 chromosomes. there were significant variations among...

1. All plants form symbioses with microfungi, known as endophytes, which live within plant tissues. Numerous studies have documented endophyte–herbivore antagonism in grass systems, but plant–endophyte–insect interactions are highly variable for forbs and woody plants. 2. The net effect of endophytes on insect herbivory may be modified by their interactions with higher trophic levels, such as p...

Under the harsh environmental conditions present in severely overgrazed, semiarid rangelands, facilitator plants offer a promising tool for ecological restoration. This study investigated facilitative effects of Aloe secundiflora—a native drought-tolerant, unpalatable, thorny shrub—on grass establishment in degraded rangelands in Kenya. We planted native perennial grass seeds adjacent to three ...

Aphid (Hemiptera: Aphididae) saliva, when injected into host plants during feeding, causes physiological changes in hosts that facilitate aphid feeding and cause injury to plants. Comparing salivary constituents among aphid species could help identify which salivary products are universally important for general aphid feeding processes, which products are involved with specific host association...

Abstract. The purpose of the research is to develop a comprehensive assessment system with new indicators feed behavior and conversion in Duroc pigs based on selection index. Research methods. Herdsman database was used, which includes processing data fattening characteristics feeding 764 heads that have passed test at automatic stations. 13 were evaluated, 7 6 – characteristics. evaluation bre...

The Composition of Pasture Ruskin in Modern Painters eulogizes grass in the following words: “. . . judge whether of all the gorgeous flowers that beam in the summer air, and of all strong and goodly trees pleasant to the eye or good for food-stately palm and pine, strong ash and oak, scented citron, burdened vine-there beany so deeply loved, by God so highly graced, as that narrow point of fee...