Variability in yield of four grain legume species in a subhumid temperate environment. II. Yield components

Abstract

SU MMARYThe effects of plant population (one-tenth of the optimum to four times the optimum populations in 1998/99 and 10-400 plants/m 2 in 1999/2000) and sowing depth (2, 5 and 10 cm) on yield and yield components of four grain-legumes (Cicer arietinum, Lens culinaris, Lupinus angustifolius and Pisum sativum) were studied. Seed yields were strongly positively correlated with the number of pods and seeds/m 2 in both years in all species. The mean seed weight and number of branches/plant were inversely related to plant population. There was a nearly six-fold reduction in the number of branches/plant as plant population increased, which was due to restricted branching, and not to branch senescence. Generally, the variation in yield components was species dependent. However, for all species the number of pods/m 2 and seeds/m 2 could be used as primary criteria for selection in a breeding programme.

Growth, Productivity and Economics of Kabuli Chickpea (Cicer arietinum L.) Genotypes in Response to Seed Rate in Northern India

“…As the seed rate increased, pods plant -1 decreased in 2005-06 (Table 3) and 2006-07 (Table 4) as also reported by other researchers (Khan et al, 1999;Venkatachalapathi et al, 2004;Choudhary et al, 2005), which could be due to competition amongst the plants for nutrients and moisture. The 100-seed weight was not influenced due to seed rates in 2006-07 and 2007-08 (Tables 4 and 5) as generally it is not influenced by environment, as reported by other researchers also (Mansur et al, 2009 (Gan et al, 2003c;Ayaz et al, 2004b). With increased plant population, the green area index, intercepted radiation, radiation use efficiency and total intercepted photosynthetically active radiation increase (Ayaz et al, 2004c), thereby resulting in higher grain yields.…”

Reaction of garden pea (Pisum sativum L.) to inoculation and nitrogen fertilization in Eastern Croatia

“…McPhee and Muehlbauer (1999) claim that during their three-year long experiments on three locations, various cultivars resulted in grain yields ranging from 121 to 346 g*m -2 . Significantly higher grain yields (ranging from 219 to 415 g*m -2 ) than the ones established in this experiment were achieved by Popović et al (2002) and Ayaz et al (2004). Uher et al (2006) conclude based on their experiments that inoculation increased grain yield by 21% compared to the control sample.…”

“…It was 197.44-470.63 depending on the experiment. Ayaz et al (2004) reached a three-time bigger pod quantity of 633 and 883 during a two-year time, respectively. Uher et al (2006) made experiments with winter peas and achieved 10 pods per plant in controlled conditions, 11 pods per plant with nitrogen fertilization and 12 pods per plant with inoculation.…”

Identificación de poblaciones sobresalientes de haba colectadas en el Estado de México

“…Salih et al (1993) registraron 42.2, 47.1 y 47.7 g en las tres variedades más sobresalientes (Cuadro 5). El PTS es el resultado de diferentes etapas fenológicas de las plantas, las cuales están expresadas en el NVP, NSV, y PSL por planta; el mayor PST es obtenido cuando se maximizan estos componentes (Ayaz et al, 2004 (Table 4). …”

“…Mohammed et al (2010) (Table 5). The PTS is the result of different phenological stages of plants, which are expressed in the NVP, NSV and PSL per plant; the highest PST is obtained when these components are maximized (Ayaz et al, 2004 En peso de semilla manchada (PSM) la población 22 (11.73 g) mostró el mayor promedio y sólo difirió estadísticamente de 3 (5.15g), 30 (3.39 g) y 33 (3.37 g) (Cuadro 5). El daño por enfermedades disminuye la calidad de la semilla y el productor no recupera su inversión.…”