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Lathyrus sativus or grass pea, is a drought tolerant large seeded legume that is well adapted to dryland temperate climates like that of Saskatchewan. The use of this crop for feed and food is limited because it contains the neurotoxin B-N-oxalylamino-L-alanine (BOAA). A 3-year study was conducted to determine the effect of moisture addition by irrigation on BOAA concentration in the seed of the grass pea in light textured soil.
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The study was undertaken from mid September 2006 to January 2007 at Dembia trial site of Gondar Agricultural Research Center, Northwest Ethiopia. The four improved grass pea lines, ILAT-LS-LSB1, ILAT-LS-LS-B2, ILAT-LS-K-290 and ILAT-LS-61'8 were brought from Debre Zeit Agricultural Research Center (DZARC) and the two lines, Kok-Egir and Shanko were collected from the study area based on their seed color. They were replicated thrice and arranged in a Randomized Complete Block Design (RCBD). Analysis of variance showed significant (P '305) variation among grass pea accessions on straw, seed and total biomass yield. The highest Dry Matter Yield (DMY) was found from grass pea accessions of Shanko and Kok-Egir with values 7.49 and 7.88 t/ha, respectively. The highest seed and straw yield were recorded from Shanko with values 4.40 and 7.00 t/ha, respectively. There was no significant difference (P '305) between treatments of Crude Protein (CP) content in forage biomass, grain and straw. The present study also provided very important data that may be utilized in research and developmental activities from local land-races and improved lines of grass pea. Additional comprehensive study is required to evaluate the impact on meat and milk through feeding of grass pea grain and fodder.
This book covers all aspect of legume production management technologies, plant ecological response, nutrients management, biological nitrogen fixation, molecular approaches, potential cultivars, biodiversity management under climate change. Also covered are various aspects of legume management under climate change such as, production management technology, ecology & adaptation, diseases, and international trade; physiology and crops response to nutrients, drought, salinity, and water use efficiency; Biodiversity management, molecular approaches and biological Nitrogen fixation; climate change and strategies. This book presents the most comprehensive and up to date review of research on different cool season grain legume crops, nutrients management, biotic and abiotic stresses management, agronomical approaches for drought management, salinity, drought, weed management and water use efficiency, impact on international trade around the world.
The lentil is a crop primarily grown in the developing world. It has the ability to use water efficiently and grow in marginal environments as well as being high in protein. This title includes chapters that outline improvements in production, such as water and soil nutrient management, agronomy, mechanization, and weed management.
[Truncated abstract] Grass pea (Lathyrus sativus cv. Ceora) is a multipurpose grain legume with an indeterminate growth habit. Adaptation of grass pea to water deficits and its potential rotational benefits in the Mediterranean-type environment of southern Australia are not well understood. The first objective of the thesis was to identify adaptation mechanisms of grass pea to water deficits. This was done by imposing water deficit during the reproductive period on plants grown in pots in a glasshouse. In the first experiment, a moderate water deficit was imposed on Ceora and a well-adapted field pea (Pisum sativum cv. Kaspa), by reducing soil water content from 80 to 50% field capacity (FC) during seed filling. Water deficit decreased pre-dawn leaf water potential (\) of Ceora and Kaspa, as well as stomatal conductance (gs) of Ceora, but no reduction in photosynthesis occurred. Water deficit reduced green leaf area of Ceora resulting in 30 and 24% reduction in plant dry mass and seed yield at maturity, respectively. Seed size and harvest indices (HI) of Ceora did not differ between the treatments. Ceora produced more dry matter than Kaspa in both treatments, but produced 22 (control) and 33% (water deficit) lower seed yields. Kaspa had higher HI and water use efficiency for grain than Ceora. In the second experiment, severe water deficit was imposed on Ceora plants by withholding water from first flowering until \ fell to -3.12 MPa, when the plants were rewatered. At maturity, dry matter, seed yield and harvest index decreased by 60%, 87% and 67%, respectively, compared with the control. Flower production stopped at \ -1.8 MPa. At \=-1.5 MPa, only 25% of the total flowers produced filled pods (compared with 95% in the control) and the rest aborted as flowers (48%) and pods (27%). Filled pods had more aborted ovules resulting in 29% less seeds per pod than the control. Water deficit reduced pollen viability (from 88 to 75%) and germination (from 53 to 28%) compared with the control. Of the germinated pollen, pollen tubes reaching the ovary were reduced by water deficit from 70 to 39% compared with the control. Seed size did not differ between the treatments. A second objective of the thesis was to assess the effect of a grass pea crop on soil N and P availabilities, and the persistence of this effect over the summer period...
​​​This book is devoted to grain legumes and include eight chapters devoted to the breeding of specific grain legume crops and five general chapters dealing with important topics which are common to most of the species in focus. Soybean is not included in the book as it is commonly considered an oil crop more than a grain legume and is included in the Oil Crops Volume of the Handbook of Plant Breeding.​Legume species belong to the Fabaceae family and are characterized by their fruit, usually called pod. Several species of this family were domesticated by humans, such as soybean, common bean, faba bean, pea, chickpea, lentil, peanut, or cowpea. Some of these species are of great relevance as human and animal food. Food legumes are consumed either by their immature pod or their dry seeds, which have a high protein content. Globally, grain legumes are the most relevant source of plant protein, especially in many countries of Africa and Latin America, but there are some constraints in their production, such as a poor adaptation, pest and diseases and unstable yield. Current research trends in Legumes are focused on new methodologies involving genetic and omic studies, as well as new approaches to the genetic improvement of these species, including the relationships with their symbiotic rhizobia.