Honeybee pollination of white clover (Trifolium repens L.) cv. Haifa

1994 ◽  
Vol 34 (8) ◽  
pp. 1121 ◽  
Author(s):  
RD Goodman ◽  
AE Williams
Keyword(s):  
Apis Mellifera ◽  
Seed Yield ◽  
White Clover ◽  
Trifolium Repens ◽  
Native Bees ◽  
Flowering Period ◽  
Trifolium Repens L ◽  
Seed Yields ◽  
Insect Visitors

The role of honeybees (Apis mellifera) in the pollination of white clover cv. Haifa was studied in a commercial planting at Mount Mercer, Victoria. Honeybees comprised 88% of all insect visitors to this crop. The activity of honeybees and native bees (Lasioglossum sp.) increased seed yield from 1.3 g/plot (plots closed to bees) to 40.3 g/plot (plots open to bees). The caging of plots for part of the flowering period to simulate the non-availability of bees for pollination resulted in lower seed yields than those from uncaged plots.

SEED YIELD COMPONENTS IN WHITE CLOVER

1979 ◽  
Vol 59 (3) ◽  
pp. 713-715 ◽  
Author(s):  
D. M. HUXLEY ◽  
V. C. BRINK ◽  
G. W. EATON
Keyword(s):  
Seed Size ◽  
Seed Yield ◽  
White Clover ◽  
Trifolium Repens ◽  
Yield Components ◽  
Yield Component ◽  
Seed Yield Components ◽  
Significant Yield ◽  
Trifolium Repens L

Components of seed yield were studied in white clover (Trifolium repens L.). Head number and seed size were the major components of yield. Seeds per head was not a significant yield component and was independent of head number.

Honeybee pollination of buckwheat (Fagopyrum esculentum Moench) cv. Manor

2001 ◽  
Vol 41 (8) ◽  
pp. 1217 ◽  
Author(s):  
R. Goodman ◽  
G. Hepworth ◽  
P. Kaczynski ◽  
B. McKee ◽  
S. Clarke ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Seed Production ◽  
Pieris Rapae ◽  
Fagopyrum Esculentum ◽  
Native Bees ◽  
Fagopyrum Esculentum Moench ◽  
Insect Visitors ◽  
Coccinella Transversalis

The role of honeybees (Apis mellifera) in the pollination of buckwheat cv. Manor was studied in a commercial planting at Smeaton, Victoria. Honeybees comprised 80% of all insect visitors to this crop. Other insects included ladybirds (Coccinella transversalis and C. undecimpunctata), hoverflies (Meangyna viridiceps), drone flies (Eristalis sp.), blowflies (Calliphoridae), cabbage white butterflies (Pieris rapae), small bush flies and native bees. The activity of honeybees and other insects increased seed production from 91.5 g/plot (plots closed to insects) to 180.4 g/plot (plots open to insects).

scholarly journals Leaf senescence and clonal growth of white clover

1996 ◽  
Vol 6 ◽  
pp. 171-173
Author(s):  
S.M. Butcher ◽  
D.W. Fountain ◽  
M.T. Mcmanus
Keyword(s):  
Leaf Senescence ◽  
White Clover ◽  
Trifolium Repens ◽  
Clonal Growth ◽  
Plant Hormone ◽  
Leaf Tissue ◽  
Physiological Changes ◽  
Genes Encoding ◽  
Trifolium Repens L

Leaf senescence is a programmed event where resources are mobilised from older tissues to the meristematic regions of the plant. In white clover (Trifolium repens L.), leaf and stolon senescence have an important impact on the persistence of the legume in pasture. As part of our investigation of leaf senescence, we have evidence for a central role for the plant hormone ethylene and have identified genes encoding ethylene biosynthetic enzymes. In this paper we include data showing some physiological changes as leaf tissue undergoes senescence and present evidence for the role of ethylene in regulating this process. Keywords: chlorophyll, ethylene, senescence, stolon, leaf, Trifolium repens L.

Influence of Light on Assimilate Partitioning in White Clover (Trifolium repens L.)

1993 ◽  
Vol 20 (3) ◽  
pp. 323 ◽  
Author(s):  
SV Pasumarty ◽  
DW Fountain
Keyword(s):  
Distribution Pattern ◽  
White Clover ◽  
Trifolium Repens ◽  
Assimilate Partitioning ◽  
Trifolium Repens L ◽  
The Relationship ◽  
Clover Plant

In order to identify factors which might contribute to the premature abortion of young inflorescences of white clover Trifolium repens L. in low irradiances, a study was made of the possible role of limiting photosynthetic assimilates to the developing inflorescence. The relationship between the irradiance and distribution pattern of assimilates in the clover plant under different irradiances was determined. Besides driving the photosynthetic supply of sucrose, light seems to play an indirect role in controlling partitioning of photoassimilates. Under low irradiance, the growing tip of the shoot and roots were major sinks and negligible amounts of 14C-labelled assimilates were supplied to the inflorescence. In medium and high irradiances, the inflorescence competes for assimilates with stolon apex and roots.

scholarly journals Study of the efficiency of creeping clover pollination (Trifolium repens L.) by honey bees (Apis mellifera L.)

2021 ◽  
Vol 282 ◽  
pp. 03024
Author(s):  
V.N. Zolotarev
Keyword(s):  
Apis Mellifera ◽  
Trifolium Repens ◽  
Honey Bees ◽  
Growing Seasons ◽  
The Family ◽  
Pollinating Insects ◽  
Seed Yields ◽  
Allogamous Species ◽  
Bee Colonies

The creeping clover (Trifolium repens L.) is a natural allotetraploid allogamous species and is characterized by an entomophilic xenogamous pollination method. One of the reasons for the low yield of clover seeds is the insufficient provision of its flowering grass stands with pollinating insects. The main pollinators are representatives of the order of hymenoptera insects (Himenoptera) from the family of true bees (Apidae) – the honey bee Apis mellifera L. and various species of bumblebees (Bombus). Studies have shown that in the conditions of the Central Non-Chernozem region of Russia, the role of bumblebees in the pollination of creeping clover did not exceed 12-13%. In the presence of bumblebees in different growing seasons in the amount of 30-80 to 110-170 indivi-duals/ha during the mass flowering of creeping clover, they -ensured the formation of seed yields of no more than 90 kg/ha. It is established that honey bees perform up to 87-88% of clover pollination. The highest collections of creeping clover seeds are formed at the flight density of bees of 18-21 thousand individuals per hectare. This makes it possible to form a biological clover yield over 720 kg/ha. To ensure such a rich flight of bees, it is necessary to have at least 2-3 strong bee colonies on clover crops.

scholarly journals Insect Visitors of White Clover (Trifolium Repens L) and Their Relation With Environmental Variables in the Premises of Bhaktapur Multiple Campus, Nepal

2018 ◽  
Vol 22 (2) ◽  
pp. 86-91
Author(s):  
Gyanu Chaguthi ◽  
Urmila Dyola
Keyword(s):  
White Clover ◽  
Trifolium Repens ◽  
Environmental Variables ◽  
Apis Cerana ◽  
Influential Factor ◽  
Number Of Species ◽  
Open Ground ◽  
Trifolium Repens L ◽  
Number Of Individuals ◽  
Insect Visitors

 White clover plant, Trifolium repens L. one of the important forage crop, entirely depends on insects for its pollination. The research aims to study diversity and relative abundance of insect visitors of white clover and their relation with environmental variables in open ground of Bhaktapur Multiple Campus. Quadrate sampling method was used to explore diversity of insect visitors. Observations of the insects were conducted at morning (09:00 AM to 10:00 AM), noon (12:00 PM to 01:00 PM) and afternoon (3 PM to 4 PM) each day during study period. There were 3472 individuals of insect collected that belong to 20 species in three orders: Hymenoptera (69%), Lepidoptera (27%) and Diptera (4%). Number of individuals of visitors were comparatively higher at noon (1426) than in morning (1256) and lower in afternoon (790 individuals). Number of species found in morning and noon were same (20 species) whereas number of species found in evening was less (16 species). Apis cerana and Lampides boeticus are the most dominant species belonging to orders Hymenoptera and Lepidoptera respectively. The relation of diversity with environmental variables was correlated by using Multivariate analysis test. The test showed significant effect of light intensity, humidity, temperature and the latter one was the most influential factor on the composition of species. Journal of Institute of Science and TechnologyVolume 22, Issue 2, January 2018 Page: 86-91

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