Open Access. Powered by Scholars. Published by Universities.®
- Keyword
- Publication
- Publication Type
Articles 1 - 4 of 4
Full-Text Articles in Plant Sciences
Using Hydrothermal Time Concepts To Model Seed Germination Response To Temperature Dormancy Loss And Priming Effects In Elymus Elymoides, Phil S. Allen, Susan E. Meyer, Susan B. Debaene-Gill
Using Hydrothermal Time Concepts To Model Seed Germination Response To Temperature Dormancy Loss And Priming Effects In Elymus Elymoides, Phil S. Allen, Susan E. Meyer, Susan B. Debaene-Gill
Faculty Publications
Hydrothermal time (HTT) describes progress toward seed germination under various combinations of incubation water potential (Ψ) and temperature (T). To examine changes in HTT parameters during dormancy loss, seeds from two populations of the bunchgrass Elymus elymoides were incubated under seven temperature regimes following dry storage at 10, 20 and 30 °C for intervals from 0 to 16 weeks. Fully after-ripened seeds were primed for 1 week at a range of s. Data on germination rate during priming were used to obtain a HTT equation for each seed population, while data obtained following transfer to water were used to calculate …
Evaluation Of Forty-Two Corn (Zea Mays L.) Genotypes And Their Tolerance To Drought In Chiquimula, Servin Ardany Flores Galdámez
Evaluation Of Forty-Two Corn (Zea Mays L.) Genotypes And Their Tolerance To Drought In Chiquimula, Servin Ardany Flores Galdámez
Theses and Dissertations
The Corral de Piedra community is located in Chiquimula, Guatemala. The main agricultural activities are corn and bean production, small-scale gardens, and small animal production, such as poultry and pigs. The crop areas are predominantly located on lands with slopes between 12 and 55%, presenting low fertility conditions and poor moisture retention capabilities. In addition, local crop varieties have low productivity potentials and the winter season is characterized by poorly distributed and erratic periods of rain. The Benson Institute introduced a technology transfer model to increase and diversify agricultural production, while preserving current natural resources. An integral part of this …
Evaluation Of 4 Small Doses Of Fertilizer In Growing Maize (Zea Mays L.) In Two Communities Of San Juan Ermita, Chiquimula, Victor Estuardo Villalta Garcia
Evaluation Of 4 Small Doses Of Fertilizer In Growing Maize (Zea Mays L.) In Two Communities Of San Juan Ermita, Chiquimula, Victor Estuardo Villalta Garcia
Theses and Dissertations
Corral de Piedra and Salitron are two communities located in the municipality of San Juan Ermita, which is in the department of Chiquimula, Guatemala. In both communities, the land has very sloped topography with slope grades ranging from 12 to 55%. Agriculture is the main production activity with corn (Zea mays L.) and beans (Phaseolus vulgaris) being the crops of greatest economic importance. These crops are planted through a system of sequential association commonly called relay. First, corn is planted at the beginning of the rainy season (May or June). Once it has completed its reproductive cycle, beans are planted …
Agronomical Behavior Of Two Kinds Of Swiss Chard (Beta Vulgaris Var. Cicla L.) Fertilized With Earthworm Humus In An Underground Greenhouse In Viacha, La Paz, Walter Von Boeck
Agronomical Behavior Of Two Kinds Of Swiss Chard (Beta Vulgaris Var. Cicla L.) Fertilized With Earthworm Humus In An Underground Greenhouse In Viacha, La Paz, Walter Von Boeck
Theses and Dissertations
The objective of the following work was to evaluate the agronomical behavior of two kinds of Swiss chard fertilized with earthworm humus, and at the same time to know the yield and the costs of production. This work was done in the community of Letanias, located 32 km. from the Department of La Paz and at an altitude of 3860 meters above sea level. Two kinds of Swiss chard were used in this work, Fordhook Giant and Petoseed C003. The three doses of earthworm humus, used as fertilizers, were a2, a3, and a4. The quantity of fertilizer used was 1314, …