CORIANRUM SATIVUM: MUTATION, POLYPLOIDY, NON-DIVIDING POLLEN MOTHER CELLS AND POLLEN VARIABILITY

Joshi, Sheila; Raghuvanshi, S. S.

doi:10.1139/g65-031

Cited by 9 publications

(8 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our study of Umbellifer plants reveals that certain chemicals cause not only cytological instability but also induce pollen variability. This later change is unique and has been reported by the authors in Coriandrum sativum also (Joshi and Raghuvanshi 1965). Colchicine gammexane treatment of Foeniculum vulgare has resulted in tetraploid (E. 182), mixoploids (E. 120, 178), and 2n plants (E. 139, 147, 151, 163, 190, 198) which exhibited pollen variabiliiy.…”

Section: Introductionsupporting

confidence: 60%

Foeniculum vulgare: Polyploidy, Translocation Heterozygosity and Pollen Variability

Raghuvanshi

Joshi

1966

CYTOLOGIA

Self Cite

View full text Add to dashboard Cite

Section: Introductionsupporting

confidence: 60%

Foeniculum vulgare: Polyploidy, Translocation Heterozygosity and Pollen Variability

Raghuvanshi

Joshi

1966

CYTOLOGIA

Self Cite

View full text Add to dashboard Cite

“…In Coriandrum sativum also high bivalent frequency was observed (Joshi and Raghuvanshi 1965) . It must be mentioned that the size of chromosome in the present species under in vestigation is quite small and due to lack of availability of enough time for pairing the multivalent frequency may be low (Raghuvanshi and Chauhan 1969a) .…”

mentioning

confidence: 94%

Polyploid breeding in Portulaca grandiflora L.

Singh¹

1979

CYTOLOGIA

View full text Add to dashboard Cite

“…While roots at 60 Kr are able to grow for sometime there is abso lutely no visible growth in shoot tips. Our study with colchicine effect on the seeds of this species (Raghuvanshi and Joshi 1965) indicated that the cells of the growing apex between two cotyledonary leaves became quite inactive.…”

Section: Discussionmentioning

confidence: 64%

“…We have reported a similar pattern following colchicine treatment of dry seeds of Tri gonella foenum-graecum (Raghuvanshi and Joshi 1965). It was found that in the doses that were sufficient to induce polyploidy, germination of treated seeds was normal but no growth occurred beyond two cotyledonary stage.…”

mentioning

confidence: 52%

Effect of Gamma Rays on Growth and Karyokinetic Activity in Trigonella foenum-graecum L

Raghuvanshi

Singh

1976

CYTOLOGIA

Self Cite

View full text Add to dashboard Cite

Our studies on the effect of radiation on Trigonella foenum-graecum (Raghuvan shi and Singh 1973) had indicated that seeds irradiated at 60Kr of gamma rays with cobalt 60 source though showed normal germination but there was no growth beyond two cotyledonary stage and later on these seedlings withered away. We have reported a similar pattern following colchicine treatment of dry seeds of Tri gonella foenum-graecum (Raghuvanshi and Joshi 1965). It was found that in the doses that were sufficient to induce polyploidy, germination of treated seeds was normal but no growth occurred beyond two cotyledonary stage. The present investigations were undertaken to find out the effects of higher doses on growth and karyokinetic activity. Materials and methodsDry seeds of Trigonella foenum-graecum with 6.9% moisture content were irradiated at 10, 30 and 60Kr, and germinated in petridishes. For cytological study material was fixed in 1:3 acetic alcohol, just after germination, and then after 48 hours intervals. In each set growth measurements of roots of 30 seedlings which were numbered from 1 to 30 were taken. Thus it was possible to follow growth pattern in individual seedling. Haematoxylen squashes of root tips, cotyle donary portion along with hypocotyl were prepared for chromosomal studies. Slides were later made permanent by ethanol-butanol schedule.In all, six sets were fixed at 48 hours interval. For analysing the karyokinetic activity in each set squashes of 10 root tips were prepared and from each slide 5 spots were taken at random for study. Squashes of shoot tips of both controls and irradiated ones were made for determining nuclear conditions. ObservationsGermination as indicated by emergence of radicle was first observed in 60Kr followed by 30Kr while 10Kr and controls germinated simultaneously. Maximum growth rate was recorded in 60Kr up to 3rd day ( Fig. 1) and after 3rd day, lead was taken by 30 Kr up to 7th day. The controls showed lowest growth rate up to 5th day but by 7th day they took the lead which was maintained up to last day of observa

show abstract

CORIANRUM SATIVUM: MUTATION, POLYPLOIDY, NON-DIVIDING POLLEN MOTHER CELLS AND POLLEN VARIABILITY

Cited by 9 publications

References 4 publications

<i>Foeniculum vulgare</i>: Polyploidy, Translocation Heterozygosity and Pollen Variability

<i>Foeniculum vulgare</i>: Polyploidy, Translocation Heterozygosity and Pollen Variability

Polyploid breeding in Portulaca grandiflora L.

Effect of Gamma Rays on Growth and Karyokinetic Activity in <i>Trigonella foenum-graecum</i> L

Contact Info

Product

Resources

About