scholarly journals Effects of a fungicide on pollen morphology and fertility of tomato (Lycopersicon esculentum Mill.)

1970 ◽  
Vol 38 (1) ◽  
pp. 7-11
Author(s):  
Ilkay Öztürk Çali

Effects of Equation Pro (22.5% Famoxadone + 30% Cymoxanil), a fungicide widely used on tomatoes (Lycopersicon esculentum Mill.) grown in greenhouses in Turkey against Phytopthora infestans and Alternaria solani, were studied on the morphology and fertility of tomato pollens. The fungicide was applied to tomatoes grown in pots in a greenhouse at recommended dosage (0.4 g/l water) and double the recommended dosage (0.8 g/l water). At the recommended dosage of Equation Pro, pollens were affected but at double the recommended dose, fertility is decreased to 41% with morphological deformity and thinner wall layers. Key words: Fungicide; Lycopersicon esculentum; Pollen; Morphology; Fertility DOI: 10.3329/bjb.v38i1.5112 Bangladesh J. Bot. 38(1): 7-11, 2009 (June)   

1970 ◽  
Vol 38 (2) ◽  
pp. 115-118 ◽  
Author(s):  
Ilkay Öztürk Çali ◽  
Feyza Candan

Effects of Agri Fos 400 (Mono and di-potassium phosphanate), a fungicide widely used on tomatoes grown in greenhouses in Turkey against Phytophthora infestans were studied on the morphology and viability of tomato (Lycopersicon esculentum Mill.) pollens. The fungicide was applied on tomato plants at recommended dosage (4 ml/l water) and double the recommended dosage (8 ml/l water). The fungicide caused changes in the morphological structures of pollens. Some pollen morphological structures that are not observed in the control group were encountered in the pollens due to application of Agri Fos 400 in equatorial view at 8 ml/l and in polar view at 4 ml/l. Level of pollen viability decreased as the dosage increased.   Key words: Fungicide; Phytophthora infestans; Tomato; Pollen morphology; Viability DOI: 10.3329/bjb.v38i2.5134 Bangladesh J. Bot. 38(2): 115-118, 2009 (December)


1970 ◽  
Vol 39 (2) ◽  
pp. 237-240 ◽  
Author(s):  
Ilkay Özturk Çali ◽  
Teoman Kesercioglu

Effects of Fosetyl-Al (80% Aliette WG 800), widely applied on tomato plants (Lycopersicon esculentum Mill.) grown in greenhouse against Phytophthora infestans revealed that at recommended dosage (200 g/100 l water) and the double dosage (400 g/100 l water), the fungicide causes various anomalies in pollen meiosis. Key words: Fosetyl-A;, Fungicide; Lycopersicon esculentum; Meiosis; Pollens DOI: 10.3329/bjb.v39i2.7486 Bangladesh J. Bot. 39(2): 237-240, 2010 (December)


2014 ◽  
Vol 42 (2) ◽  
pp. 361-365
Author(s):  
Ilkay Öztürk Çali ◽  
Reyza Candan

The cytogenetic effects of activator Act-2 (based in compounds of addition hydro soluble of K-vitamin group a new and specific organic metabolic activator) on meiosis of tomato (Lycopersicon esculentum Mill.) were studied. The activator was applied to tomato plant grown in greenhouse at the dosage (150 cc/100 water) recommended by the manufacturing company and double the recommended dosage (300 cc/100 water) as well. It was observed that all dosages of the activator gave rise to some changes in cell shapes, chromosome structures, cell division patterns and cell sizes of tomato pollen. As a consequence of chromosomal anomalies sterile pollens were produced that affected yield negatively. DOI: http://dx.doi.org/10.3329/bjb.v42i2.18045 Bangladesh J. Bot. 42(2): 361-365, 2013 (December)


Genome ◽  
1996 ◽  
Vol 39 (3) ◽  
pp. 485-491 ◽  
Author(s):  
Tsvetana Liharska ◽  
Monique van Wordragen ◽  
Ab van Kammen ◽  
Pim Zabel ◽  
Maarten Koornneef

Variation in recombinant frequencies at two adjacent intervals on chromosome 6 of tomato (Lycopersicon esculentum Mill.) has been studied in seven lines that differ in the amount and origin of introgressed segments from wild species. These lines were all crossed to a genotype homozygous recessive for the markers tl, yv, and c, which define the centromere spanning region tl–yv and the long arm region yv–c. Recombinants were identified in large F2, populations consisting of over 30 000 plants in total. Application of molecular markers provided additional information on the distribution of crossover events within the centromere-containing interval tl–yv. A decrease in recombination at the marked intervals correlated with the presence of an alien segment. Suppression of recombination was up to sixfold in the centromere spanning interval tl–yv depending on the source and size of the introgression, and was restricted to the alien segments with no strong effect on the neighbouring intervals. Key words : recombinant frequency, Lycopersicon esculentum, morphological markers, introgressions, centromere.


1970 ◽  
Vol 17 (2) ◽  
pp. 217-220 ◽  
Author(s):  
A.N. Mohamed ◽  
M.H. Rahman ◽  
A.A. Alsadon ◽  
R. Islam

Abstract not available Key words: Lycopersicon escutentum, Callus, Proline D.O.I. 10.3329/ptcb.v17i2.3242 Plant Tissue Cult. & Biotech. 17(2): 217-220, 2007 (December)


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