نتایج جستجو برای: ipomoea hederacea
تعداد نتایج: 2603 فیلتر نتایج به سال:
Methanolic extracts of diff erent parts of fi ve medicinal plants, Ferula assafoetida L. resin, Grewia asiatica L. leaves, Ipomoea hederacea Jacq. seeds, Lepidium sativum L. seeds and Terminalia chebula Retz. fruits were tested in vitro for their cytotoxic, phytotoxic, insecticidal, nematicidal and anthelmintic activities. Ipomoea hederacea showed very signifi cant phytotoxic and cytotoxic acti...
Ipomoea is the largest genus in the flowering plant family "Convolvulaceae” with over 500 species, most of these are called morning glories. Ipomoea hederacea considered as a valuable herb for indigenous medicine is renowned for its medicinal properties. Ipomoea hederacea is a favored drug for different diseases because of its oral effectiveness, good safety profile availability in India. The s...
Theory predicts that, for taxa that are already substantially postzygotically isolated but for which hybrid mating is still costly, enhanced prezygotic isolation will be favored. Here, we tested this hypothesis by examining the potential contribution of one particular floral trait, herkogamy, to prezygotic isolation between two species of morning glory, Ipomoea hederacea and Ipomoea purpurea. T...
The present investigation has been carried out to determine the proximate composition, amino acids, metal contents, oil composition as well as the antioxidant capacity of the seeds of Ipomoea hederacea Jacq. and Lepidium sativum L. Proximate composition indicated a great difference in oil (14.09 ± 0.66, 28.03 ± 1.05) and fibre (16.55 ± 0.31, 6.75 ± 1.20) contents for I. hederacea and L. sativum...
We examined the genetic basis of resistance to the rust pathogen Coleosporium ipomoea in three host species: Ipomoea purpurea, I. hederacea, and I. coccinea (Convolvulaceae). In crosses between resistant and susceptible individuals, second-generation selfed offspring segregated in ratios that did not differ statistically from the 3:1 ratio indicative of single-gene resistance with the resistant...
Disentangling the historical evolutionary processes that contribute to patterns of phenotypic and genetic variation is important for understanding contemporary patterns of both traits of interest and genetic diversity of a species. Ipomoea hederacea is a self-compatible species whose geographic origin is contested, and previous work suggests that although there are signals of adaptation (signif...
گونه های anoda cristata، ipomoea hederacea و i. triloba برای نخستین بار از ایران گزارش می شوند. گونه های trianthema portulacastrum وmerremia dissecta که قبلا توسط دیگران به ترتیب به صورت گونه مشکوک و زینتی از اراضی غیرکشاورزی گزارش شده بودند، برای نخستین بار از اراضی زراعی کشور گزارش می شوند. محل دقیق، محصول، پراکنش، شکل و شرح کوتاهی از هر یک از گونه ها ارایه شده است.
PREMISE OF STUDY Leaf shape is predicted to have important ecophysiological consequences; for example, theory predicts that lobed leaves should track air temperature more closely than their entire-margined counterparts. Hence, leaf-lobing may be advantageous during cold nights (∼0°C) when there is the risk of damage by radiation frost (a phenomenon whereby leaves fall below air temperature beca...
Inbreeding depression and selfing rate were investigated in the self-compatible vine Ipomoea hederacea to assess the variability of the breeding system. Inbreeding depression differed between populations and the magnitude varied at germination, growth (as measured by aboveground biomass), and reproductive potential. Plants from Macon County, Alabama, USA, had significant inbreeding depression (...
Evolutionary theory predicts that interactions between species such as resource competition or reproductive interference will generate selection for character displacement where similar species co-occur. However, the rate and direction of character displacement will depend not only on the strength of selection for trait divergence, but also on the amount of genetic variation for selected traits...
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