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Pollination studies in Crotalaria juncea L

, : Pollination studies in Crotalaria juncea L. Science and Culture 54(7): 243-244

Observations of a crop of Crotalaria juncea at Hisar, India, showed that Megachile lanata was the main pollinator (47.38% of bees observed), followed by Apis dorsata (16.72%). M. flavipes (7.36%) and Xylocopa fenestrata (7.30%).

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Related references

Nogueira Couto, R.H.; Costa, J.A.; Silveira, R.C.M.; Couto, L.A., 1992: Pollination of Crotalaria juncea by native bees. The frequency of visits and behaviour of bees on flowers of C. juncea at different development stages and at different times of the day were studied in Sao Paulo, Brazil, in 1983 and related to nectar production. Nine bee species were observed (Xy...

Mitra, G.C., 1981: Bud pollination and self-incompatibility in sunnhemp (Crotalaria juncea L.). Reasons were sought for the unreliability of bud pollination as a means of maintaining inbred lines in this self-incompatible crop. After both self and cross pollination, carried out 30-32 h before anthesis, pollen tube growth was slow during the...

Van Gilst, K.B., 1960: Sunnhennep (Crotalaria juncea) as wisselbougewas vir tuinbougronde. Sunnhemp (Crotalaria juncea) as a rotation crop in horticulture. The effect was investigated, of incorporating sunnhemp as a green manure in March, April or May, at flowering, pod formation and harvest on these following crops: rye, sweet-corn and cabbage. After incorporation in March, decomposition took place...

Couto R.H.N.; Costa J.A.; Silveira R.C.M.D., 1988: Effects of pollination on seed production in crotalaria juncea. The study of pollination effects on pod and seed production in Crotalaria juncea showed that the more efficient pollinators are bees of the genus Xylocopa due to the high frequency of visits as well by the behavior developed during their visits to...

Couto, R.H.N.; Costa, J.A.; Silveira, R.C.M. da, 1988: Effect of pollination on seed production in Crotalaria juncea. Observations of flowering pattern and insect visitors were made between Jan. and Jul. in C. juncea plants which were or were not covered with nylon netting. The most frequent insect visitors to flowers were Xylocopa frontalis and X. grisences, Api...

Mitra G.C., 1981: Bud pollination and self incompatibility in sunn hemp crotalaria juncea. The buds were self- or cross pollinated under controlled conditions with 30-32 h preceding anthesis. In incompatible matings the growth of pollen tubes did not occur, sometimes swollen and thickened ends in the stylar tissue appeared; while in com...

Nadkarni, Rs, 1982: Karyotypic studies in Crotalaria medicaginea var. luxurians Baker and Crotalaria juncea Linn. Chromosome information service: (32) 4-6

Pandey B.N., 1985: Studies on the growth of crotalaria juncea and crotalaria sericea under varying levels of soil moisture. In C. juncea L. and C. sericea Retz., dry weight and leaf area were maximum at soil moisture around the field capacity, being more tolerant to waterlogging. Leaf area ratio (LAR) of the 2 differed. C. sericea appeared more tolerant and plastic und...

Fulzele, G.R., 1966: Studies in (i) cyto-morphology of some wild species of Crotalaria and (ii) fertility in C4 generation of auto-tetraploids of Crotalaria juncea, L. Normal meiosis with 2n- 16 chromosomes was observed in C. calycina, C. linifolia, C. orixensis, C. mysorensis, C. retussa, C. stviata and C. verrucosa. Autotetraploids of C. juncea were taller, later maturing, more branched and larger seeded than...

Pandey, Bn, 1985: Studies on the growth behavior of Crotalaria juncea and Crotalaria sericea Retz. under varying levels of soil moisture. Geobios 12(1): 13-17