✦ LIBER ✦

The effect of varying the number of pollen grains used in fertilization

✍ Scribed by D. V. Ter-Avanesian

Publisher: Springer
Year: 1978
Tongue: English
Weight: 247 KB
Volume: 52
Category: Article
ISSN: 0040-5752
DOI: 10.1007/bf00281320

No coin nor oath required. For personal study only.

✦ Synopsis

The number of pollen grains placed upon a stigma influence both the development of pollen tubes and subsequently the progeny which result from fertilizations by gametes from these pollen tubes. The first influence is demonstrated by reduced pollen tube growth rates when pollen grains are few in number. This may indicate direct effects of pollen tubes upon the stylar tissues or perhaps more complex interactions between pollen and style. The second and potentially more important influence of limited pollination is upon the progeny. This was demonstrated with studies on three species. In each case, variation among the resultant plants was greater when pollen was limited than when normal, that is excessive, pollen was used. The mechanism of this phenomenon is not certain, but our data indicate that it is not simply an artefact of variation in seed size.

📜 SIMILAR VOLUMES

The effect of pollen load and pollen gra

The effect of pollen load and pollen grain competition on fertilization success and progeny performance inFagopyrum esculentum

✍ Thomas Björkman 📂 Article 📅 1995 🏛 Springer 🌐 English ⚖ 492 KB

The ?negative group effect? in the polle

The ?negative group effect? in the pollen grains of vinca rosea

✍ Beams, H. W. ;King, R. L. 📂 Article 📅 1944 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 483 KB

Effect of ultracentrifuging on polarity

Effect of ultracentrifuging on polarity in the pollen grains of Vinca rosea

✍ Beams, H. W. ;King, R. L. 📂 Article 📅 1944 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 456 KB

The use of centrifugal force in the study of the structure and development of the animal egg has been extensive. The general result of this work has been to show that the polarity and pattern of organization of a n animal egg are not greatly changed by the displacement of its visible materials. Pola

Factors affecting haploid production in

Factors affecting haploid production in wheat using theHordeum bulbosumsystem. 1. Genotypic and environmental effects on pollen grain germination, pollen tube growth and the frequency of fertilization

✍ L. A. Sitch; J. W. Snape 📂 Article 📅 1987 🏛 Springer 🌐 English ⚖ 963 KB

Numerical taxonomic analysis of cirrhosi

Numerical taxonomic analysis of cirrhosis. I. The effect of varying the number and type of variables used

✍ P. Winkel 📂 Article 📅 1974 🏛 Elsevier Science 🌐 English ⚖ 569 KB

Germinal pore number in pollen grains as

Germinal pore number in pollen grains as a selection basis in the production of tetraploid clover

✍ J. Dijkstra; G. J. Speckmann 📂 Article 📅 1965 🏛 Springer 🌐 English ⚖ 342 KB

Experiments with the variety Fahl of Berseem clover and with different material of red clover have shown that the occurrence of tetraploid and diploid tissues can be detected in a rapid and reliable way by determining the number and arrangement of germinal pores of the pollen . The advantages over t