Titlebook: Sexual Plant Reproduction; Mauro Cresti,Antonio Tiezzi Book 1992 Springer-Verlag Berlin Heidelberg 1992 Incompatibility.Pflanzenzüchtung.P

一再遛

江湖骗子

相信

The Cytoskeleton of Pollen Grains and Pollen Tubes,ell morphogenesis and cell growth (Dustin, 1984; Bershadsky and Vasiliev, 1988). Examination of a broad variaty of mono- and dicotylédones has revealed the presence of microtubules and/or actin filaments in the cytoplasm of male meiocytes, immature microspores, pollen grains, pollen tubes, male game

reflection

configuration

Indolent

残暴

破布

Micromanipulation and in Vitro Fertilization with Single Pollen Grains and Isolated Gametes of Maizpulation of individual pollen grains, microincubation of pollen with substances delivered locally to the exine, pollen tube or tip of the tube by a microcapillary, and microinjection before and after pollination. We have developed new procedures for in vitro pollen germination and describe the micro

Herbivorous

,, and , Aspects of Embryo — Ovule Interactions in Intra- and Interspecific Beet Crosses,een made to produce interspecific crosses with wild beet species (e.g., ., Savitsky 1975). Unfortunately, the interspecific F. seedlings often die from root necrosis (Speckmann & De Bock 1982). On the other hand, intraspecific crosses between lines with different genetical background (e.g. different

羽毛长成

Stress Effects on the Male Gametophyte,n the stigma. Desiccation is certainly not the only one stress exerted during the life of the male gametophyte. Temperature and its interaction with cellular water activity are also important parameters in the control of vitality. In the following paragraphs these complex interactions and their prac