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the ability of plants and animals to grow and develop rapidly. In plants earliness is determined by how rapid a state of biological and economic ripeness is attained. Earliness in animals is the reaching of physical, sexual, and economic maturity at an early age. Earliness is a hereditary character of certain plant species (lettuce, spinach, radish) and varieties (Kirghiz 16 and Early 12 winter wheat, Saratov 210 and Albidum 43 spring wheat, Bukovina 3TV corn, Number One Gribovskii 147 cabbage, Murom 36 cucumber) and of certain animal breeds (Jersey, Aberdeen-Angus, and Hereford cattle, Breitova and Livny swine, meat-and-fleece sheep breeds). Earliness depends on conditions of plant cultivation and on the feeding and maintenance of animals. It is developed by directed selection and culling.

In plants earliness is characterized by accelerated passage through the vegetative stages. In animals it involves a shortened gestation period, early replacement of milk teeth, rapid onset of sexual maturity, and large weight gains over short periods of time. Meat is obtained the soonest by fattening young animals of early maturing breeds. Earliness has economic significance. The cultivation of early ripening plant species and varieties results in a more productive use of land, since the same field may yield two harvests per season. When early maturing animals are raised, the turnover of the flock or herd is accelerated and a better return of products on feed is obtained.


Borisenko, E. Ia. Razvedenie sel’skokhoziaistvennykh zhivotnykh, 4th ed. Moscow, 1967.
Gupalo, P. I. Vozrastnye izmeneniia rastenii i ikh znachenie v rastenievodstve. Moscow, 1969.
Novikov, E. A. Zakonomernosti razvitiia sel’skokhoziaistvennykh zhivotnykh. Moscow, 1971.
References in periodicals archive ?
In our problems, the earliness penalty is randomly generated integers between 1 and 10.
Under the condition that both earliness and tardiness penalties are proportionate to the processing times of the jobs, which are reasonable in practice, Rachamadugu[28] presented special cases that the shortest processing time (SPT) rule and longest processing time (LPT) rule yield optimal sequence for the single machine E/T problems.
Days to first flowering is more reliable measure for earliness than either blooming index or total flower count.
CR is the best rule for mean earliness and the mean number of labour transfers.
Because of the earliness penalty, trucks need not necessarily be scheduled to be unloaded uninterrupted.
Earliness index (%) was measured with the help of following formula.
2])C5 was the parent with the highest frequency of positive alleles for earliness (Table 2).
Whatever their reason I need more of their lateness and they need more of my earliness.
The prioritizing mechanism applied to CR/SI focuses on achieving jobs' due dates to avoid tardiness and earliness.
Select from catalog descriptions according to what's important to you, such as cold tolerance (`Roc d'Or' and `Royal Burgundy' perform well in cooler soils), color (try mottled `Dragon Tongue' and `Wren's Egg', yellow `Goldkist' and `Roc d'Or', purple `Royal Burgundy'), earliness (`Provider' and `Venture' for short-season climates), and flavor and texture (choose from beany-flavored `Romano', crunchy `Blue Coco' and `Vernandon', stringless `Greencrop', and tender `Oregon Trail').
Genetic studies of fiber quality parameter and earliness related traits in upland cotton (G.
Breeding new cotton varieties to fit the diversity of cropping conditions in Africa: effect of plant architecture earliness and effective flowering time on late-planted cotton productivity.