نتایج جستجو برای: pollination along with three superior genotypes 269
تعداد نتایج: 9644067 فیلتر نتایج به سال:
Extended Abstract Introduction and Objective: The sunflower is one of the most important oilseed plants in the world and its oil has nutritional and high economic value. Identification and selection of high-yielding genotypes with desirable characteristics are especially important in this plant. Evaluating sunflower genotypes under different environmental conditions would be useful to identify...
BACKGROUND Most tropical and subtropical plants are biotically pollinated, and insects are the major pollinators. A small but ecologically and economically important group of plants classified in 28 orders, 67 families and about 528 species of angiosperms are pollinated by nectar-feeding bats. From a phylogenetic perspective this is a derived pollination mode involving a relatively large and en...
We report here on a comparative developmental profile of plant hormone cytokinins in relation to cell size, cell number and endoreduplication in developing maize caryopsis of a cell wall invertase-deficient miniature1 (mn1) seed mutant and its wild type, Mn1, genotype. Both genotypes showed extremely high levels of total cytokinins during the very early stages of development, followed by a mark...
Edible seed watermelon is a cash crop in rain-fed condition in Khorasan provinces, with little research paid to it yet. In this study, genetic variation was evaluated among five candidate genotypes of edible seed watermelon, along with one commercial cultivar (Crimson Sweet) using 10 microsatellite primers (SSR) as well as morphological studies. 14 morphological traits were evaluated and analyz...
Pollination is very important for achieving an economical production in hazelnuts. This study was conducted as a factorial randomized complete block design with three replications. In this study, the effects of three pollinizers (Pashmineh, Gercheh and Shastak) on nut and kernel characteristics of some hazelnut cultivars (Rounde, Fertilede coutard and Gerdeshkvarat) were investigated. The resu...
In maize (Zea mays L.) large decreases in kernel number result when low water potentials (Psi(w)) and high temperatures occur during pollination. To gain insight into the basis for the decreased seed set, silk, pollen, and ear-leaf Psi(w), the capability for silk osmotic adjustment, and pollen appearance were measured to determine their relationship to seed set. A multiple-eared or prolific (hi...
the thesis has been arranged into five chapters and mainly concerned with the baer-invariant of groups which is the generalization of the schur-multiplier with respect to the variety of groups. chapter one is devoted to collect some notation and background information which are needed in the next chapters. its also contains some important statements which will be generalized in this thesis. cha...
sainfoin (onobrychis sativa), a forage legume, is worth attention because of its production and superior quality among pasture and hay forage crops in iran. sainfoin forage yield may be reduced by different levels of salinity. increasing forage yield in saline environments through plant breeding could partially compensate for this shortcoming if sufficient genetic diversity and heritability be ...
Dog Rose is one of the most important species in Rosaceae family used as a medicinal plant and a rootstock for ornamental roses. This species is native to Iran, therefore, identification of indigenous genotypes of this species is important for genetic preservation or breeding purposes. Genetic diversity estimation of plant materials is one of the important pre-breeding activities in breeding cr...
chicory (cichoriumintybus l.) is an important industrial crop which is used for inulin production. inulin is widely applied as food ingredient due to its health promoting properties. for the first time, attempts were made to investigate thirteen endemic chicory genotypes including three pumilum populations, along with five root chicory cultivars, four witloof chicory varieties and a crispum end...
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