Results 61 to 70 of about 1,394 (115)

Floral mechanisms promote pollination success and reduce the incidence of self‐pollination in a fly‐pollinated self‐incompatible orchid

open access: yesEcology and Evolution
Among flowering plants, self‐incompatibility is considered the most efficient system for avoiding self‐fertilization. However, many self‐incompatible plants have also evolved floral mechanisms to reduce sexual conflict.
Sheng Zhang   +2 more
doaj   +1 more source

UNUSUAL GROWTH OF POLLEN TUBES IN THE OVARY OF QUINCE (Cydonia oblonga Mill.)

open access: yesActa Scientiarum Polonorum: Hortorum Cultus, 2017
This paper presents the results of a three-year research (2010–2012) of unusual growth of pollen tubes in the ovary in eight cultivars of quince in two pollination variants (self-pollination and open-pollination). Unusual behavior of pollen tubes growth
Aleksandar Radović   +5 more
doaj  

Improving yields in self-pollinated crops

open access: yesCalifornia Agriculture, 1962
Some mixtures of pure-line varieties of self-pollinated crops show promise of improving yields and stabilizing productivity, as compared to the pure lines.
openaire   +1 more source

INDIVIDUAL SELECTION IN COMBINATION WITH SELF-POLLINATION

open access: yesUniversum:Chemistry & biology
Bunyod Mamarakhimov, Malokhat Khalikova
openaire   +1 more source

The mechanism and inheritance of intraflower self-pollination in self-pollinating variant strains of periwinkle

Plant Breeding, 2001
AbstractThe mechanism and inheritance of intraflower self‐pollination in self‐pollinating variant strains of periwinkle was studied using three self‐pollinating and two non‐self‐pollinating but fully self‐fertile strains. Intraflower self‐pollination in self‐pollinating strains occurred due to the continued growth of the gynoecium beyond the base of ...
R N Kulkarni, K Baskaran
exaly   +2 more sources

The Makings of Self-Pollination

Science, 2007
Plants that produce both male and female gametes use various strategies to determine whether they will predominantly self-fertilize or predominantly use pollen from other flowers. Although compatibility of cell surface receptors is part of the story, the geometry of flower parts also affects what pollen lands on the stigma.
openaire   +2 more sources

Facultative Self-pollination in Island Irises

American Midland Naturalist, 1997
-Blue flag (Irzs versicolor) is an insect-pollinated clonal plant found in wet habitats throughout northeastern North America. Our study of an isolated population on Kent Island, New Brunswick, showed that blue flag was self-compatible. Moreover, we found no evidence of inbreeding depression.
R. Andrew Zink, Nathaniel T. Wheelwright
openaire   +1 more source

Insect Induced Self-Pollination

Plant Systematics and Evolution, 1984
Significant increase of pod production occurs inLupinus palaestinus Boiss. andL. pilosus Murr. following insect visits. The cause of this increase is investigated through (1) examination of the biology of pollination, (2) examination of pod production under various pollination conditions, (3) examination of cross pollination by genetical markers.
openaire   +1 more source

Breeding Self-Pollinated Crops

1987
The challenge of the plant breeder is to develop better varieties. In this chapter we are concerned with the methods by which new varieties of self-pollinated crop plants originate. Before we proceed into a discussion of these methods, let us consider the question, “What is a variety?”
openaire   +1 more source

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