Time of pollination

Forest trees can occupy extensive geography and environmentally highly variable areas which result in high genetic variability in the direction of pressure from natural selection. At the same time, the majority of conifer species are wind-pollinated from both short and long distances, resulting in wide-spread gene flow, which can lead to maladaptation to local conditions.

13p vihagrid 30-01-2023 9 3   Download

Pomegranate (Punica granatum L.) is one of the important fruit crop of arid and semiarid regions of the world belongs to family Punicaceae. This fruit crop is often cross pollinated, genetically heterozygous and appropriate natural variation is present. Traits like reducing the size of the plant in order to increase orchard plant density, selecting self fertile genotypes to maintain a higher consistent yield over time and selecting genotypes with higher nutritional value of the fruit are important for ideotype plant in pomegranate.

10p trinhthamhodang9 16-12-2020 14 2   Download

The need to quantify genetic purity in a larger area with real-time population is significant to know, cross verify the genetic purity declared in the grow-out test and its subsequent validity with results of the molecular test. This will give us the genetic purity confidence level in crops like pigeon pea since; it is often cross-pollinated with 5-70 per cent natural cross-pollination.

6p trinhthamhodang9 16-12-2020 14 2   Download

Understanding ancillary traits related to flower biology is crucial to understand the appropriate time for emasculation and pollination in order to achieve a successful cross to develop hybrids with high yield and other economically important traits.

10p chauchaungayxua6 26-06-2020 15 0   Download

The experiment was conducted in randomised block design with two factors and three replications during kharif 2015 and 2016 at Kittur Rani Channamma College of Horticulture, Arabhavi.

9p trinhthamhodang5 16-05-2020 10 1   Download

Flower longevity plays an important role in pollen dispersal and reproductive success in plants. In dichogamous plants, the duration of anthesis as well as the time allocated to male and female functions can vary in response to intrinsic factors (e.g., flowering time and resource allocation) and pollination context along a growth season.

10p viuchiha2711 21-04-2020 4 1   Download

Pigeonpea (Cajanus cajan) is a often cross-pollinated, diploid, grain. It is the fourth most important food legume in the world after dry bean (Phaseolus vulgaris L.), field pea (Pisum sativum) and chickpea (Cicer arientinum L.) The present study on marketing cost, marketing margin and price spread of pigeonpea was conducted in Latur market. For the present study different marketing channels, marketing margins, price spread and producers share in consumer’s rupee were calculated. The study was conducted for the year 2017-2018 in Latur market.

6p caygaocaolon3 27-02-2020 15 0   Download

Beekeeping industry, is one of the important agricultural and forest based rural industries in India, which mainly involves in large scale production of honey and related products, besides they play a vital role in pollination of various crops. Beekeeping is entirely dependent on the types of flowering plants available in any given area. It is not only the total abundance, that is important, but also the duration of time for which bee forage is available.

5p chauchaungayxua3 07-02-2020 16 1   Download

Field experiments were conducted to record the diversity of floral visitors/pollinators in Bitter gourd Kharif season, 2018, with three replications. The experimental plot was kept free from chemical sprays during the flowering period. Insects belonging to various orders like Hymenoptera, Lepidoptera, Diptera, Hemiptera and Coleoptera were found visiting the bitter gourd flowers. Major pollinators of bitter gourd have been identified by their foraging activity. Foraging behaviour of major pollinators were recorded during different hours of the day viz. 0600 to 1800h based on No.

8p chauchaungayxua3 07-02-2020 17 1   Download

Foraging behavior of bumble bees and honey bees with respect to foraging activity, foraging rate, foraging speed, loose pollen grains and abundance were studied by utilization of bumble bees (B. haemorrhoidalis) and European honey bees for the pollination of kiwifruit cv. Allison under caged condition at kiwifruit orchard of Dr. YS Parmar University of Horticulture & Forestry, Nauni, Solan (HP) during 2017.

9p nguathienthan2 25-12-2019 17 1   Download

Tomato (Solanum lycopersicum L.) is one of the most important vegetable crops under solanaceous group which can be grown both under open field conditions and greenhouses. Tomato has achieved high popularity especially in the recent years because of lycopene’s anti-oxidative activities and anti-cancerous functions. The cultivated tomato has been used in genetic studies because of the ease with which it can be easily manipulated and also its diversity present within the population.

9p kequaidan2 13-12-2019 15 0   Download

The course of observation at Habak Urban park of SKUAST- Kashmir valley during 2016- 18, on the occurrence and pollinating activities of insects on carrots grown for seed, 11 species representing two orders, were collected. Most numerous in species were the hymenopterans families and the dipterous families Syrphidae. Most numerous in individuals were the dipterous families Syrphidae. Families and super families represented by the most efficient pollinators were Apoidea, Syrphidae. Abundance time’s efficiency was used as a pollination index for each species was recorded.

7p cothumenhmong1 11-12-2019 7 0   Download

Because of the primary character of biomass ecosystem production and the comprehensive coverage of carbon/biomass accounts, they play a central role in ecosystem capital accounts. Carbon/ biomass is the primary service expected from the ecosystem, under the constraint of sustainable supply of water (for human use and the ecosystem itself) as well as sustainability of all the regulating (water regulation, assimilation of residuals, habitat regulation, pollination) and socio-cultural services which are produced.

79p bin_pham 06-02-2013 56 5   Download