Effects of different irrigation regimes on the yield and yield components of dry bean (Phaseolus vulgaris)

Abstract

Water stress is one of the most important yield-limiting abiotic factors for dry beans (Phaseolus vulgaris L.). This study was conducted 1) to identify the effects of different irrigation scheduling on yield and yield components, 2) to define the number and intervals of irrigation water requirements in dry beans and 3) to compare the performances of two dry bean varieties in different irrigation schedules. The experiments were carried out in the fields of the Anatolian Agricultural Research Institute from 1992 to 1996. Two dry bean cultivars, Yunus90 and Karacasehir90, were used to study the effects of five irrigation schedules (S 1 : High, S 2 : Medium, S 3 : Low, S 4 : High-Low, S 5 : Low-High rates of irrigation). The results indicated that year (Y) × irrigation regime (IR) interactions were important for yield and yield components. Karacaşehir90 was less affected by water stress than Yunus90 when rainfall was low in the growing season. Differences between irrigation schedules were more distinct when rainfall was low. The highest yield and yield component values were obtained from S 1 , while the lowest values were obtained from S 3 and S 4 . These results showed that water stress after flowering had the most adverse effect on yield. Thus, it is recommended that farmers use supplemental water chiefly after flowering when water sources are limited.

The economic yield evaluation and some of the morphological traits of chickpea cultivars under the influence of different densities

“…Is significant at a density of 50 plants per square meter (3317.4 kg/h) was produced the most drought matter and at a density of 10 plants per m 2 (2621.4 kg/h) was produced the lowest biological yield (Table 4). (Isik et al, 1997) with different density report that with increasing plant density, plant single weight is reduced, however, due to the increasing number of plants in per surface area and, biological yield increased that is consistent with the results of this research. As well as the findings of a similar survey results report (Ayaz et al, 2004) on the legume of seeds.…”

Study of the defensive mechanism against drought in French bean (Phaseolus vulgaris L.) varieties

“…During this period, drought (water deficit of the soil associated with high temperature) decreased the pod number per plant and the number of seeds in the pods (Boutraa and Sanders 2001;Bonfil et al 2007;Lesznyák et al 2008). Water deficiency after flowering hampers the development of seeds and causes a great number of seeds to shrivel during seed production (Nemeskéri 1994;Isik et al 2005). Green pods with seed abortion due to low fertility are also not suitable for food processing, as their quality is considered to be substandard.…”