fertilizing costs
21Triticale — Taxobox name = Triticale image width = 240px image caption = Triticale regnum = Plantae divisio = Magnoliophyta classis = Liliopsida ordo = Poales familia = Poaceae tribus = Triticeae genus = × Triticosecale species = binomial = × Triticosecale… …
22No-till farming — The article Conservation tillage redirects to this page. This article primarily discusses No till farming, which is one of several different conservation tillage techniques. Some others are Strip till and Minimum tillage …
23Sperm competition — is competition between sperm of two or more males for the fertilization of an ovum (Parker 1970). Sperm competition is often compared to having tickets in a raffle; a male has a better chance of winning (i.e. fathering offspring) the more tickets …
24Self-incompatibility in plants — Self incompatibility (SI) is a general name for several genetic mechanisms in angiosperms, which prevent self fertilization and thus encourage outcrossing. In plants with SI, when a pollen grain produced in a plant reaches a stigma of the same… …
25Economy of Póvoa de Varzim — In 2001, the population working in the primary sector, industries and other similar activities made up almost 39% of the population of Póvoa de Varzim, while 46% of the population (plus 27% in related activities) worked in civil construction,… …
26Parthenogenesis — (from the Greek παρθένος parthenos , virgin , + γένεσις genesis , creation ) is an asexual form of reproduction found in females where growth and development of embryos or seeds occurs without fertilization by a male. The offspring produced by… …
27Harvest (wine) — Medieval grape harvesting. The harvesting of wine grapes (Vintage) is one of the most crucial steps in the process of winemaking. The time of harvest is determined primarily by the ripeness of the grape as measured by sugar, acid an …
28Agriculture in Madagascar — Traditional agricultureTraditional farming methods vary from one ethnic group or location to another, according to population density, climate, water supply, and soil. The most intensive form of cultivation is practiced among the Betsileo and… …
29Cultivation of tobacco — Part of a series on Tobacco …
30Compétition spermatique — Dans la nature, l’apparente extravagance des traits arborés par les mâles de certaines espèces, et leur sous jacent impact sur leur survie, inspira Darwin[1] dans le développement de la théorie de la sélection sexuelle. Un siècle plus tard, les… …
