Bibliographic citations
Vega, E., (2016). Desempeño del frijol común bajo riego parcial de raíces en un sistema de respuesta hidrogravitrópica selectiva [Tesis, Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/2908
Vega, E., Desempeño del frijol común bajo riego parcial de raíces en un sistema de respuesta hidrogravitrópica selectiva [Tesis]. : Universidad Nacional Agraria La Molina; 2016. https://hdl.handle.net/20.500.12996/2908
@phdthesis{renati/1115149,
title = "Desempeño del frijol común bajo riego parcial de raíces en un sistema de respuesta hidrogravitrópica selectiva",
author = "Vega Ponce, Emil Cristhian",
publisher = "Universidad Nacional Agraria La Molina",
year = "2016"
}
Water is a limited resource and its scarcity generates imbalances in the actions that benefit. The society, mainly to the agriculture that represents the human activity of greater consumption of water. Recent studies have shown that crops can maintain adequate yields. With significant reductions in water consumption because plants have the ability to recognize abiotic signals and make adjustments to their water regulation system. The purpose of this research was to study the effect of reduced irrigation on bean (Phaseolus vulgaris L.) cultivation. For this purpose, a hydrogravitropic response pot was designed where the plants were cultivated and evaluated under two treatments with complete or conventional irrigation (RC) and two under partial root-zone drying (RPR). All treatments received the same volume of water until before flowering, and then assigned the irrigation application according to the water-soil retention curve; in the control treatment (RC500) the water allocation corresponded to 100 percent of the field capacity of the substrate used, in RC300 the 60 percent of RC500 was applied, in PRP500 and RPR300 50 percent of RC500 and RC300 respectively. Xylem water potential, stomatal conductance and soil matrix potential were monitored, along with determining the dynamics of water relations and water productivity. The results showed that the geometry of the proposed pot facilitated the application of RPR because it avoided horizontal transfer of moisture between the lateral root developmental sections. The high values of stomatal conductance in RC500 evidenced luxury transpiration, while the osmotic adjustment performed by RPR500 allowed maintaining the plants with thesame module of elasticity as the control. Although all treatments showed the same efficiency of green bean production, RPR500 showed the highest efficiency of water use and protein concentration, even though in this treatment less water was applied than RC500.
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