Production and Quality of Physalis ixocarpa Brot. Fruit under Colored Shade Netting

Abstract

<jats:p>The use of colored shade nets is a method to protect plants from direct solar radiation and optimize the light spectra they transmit. The purpose of this work was to evaluate the photosynthetically active radiation (<jats:italic>PAR</jats:italic>), the photosynthetically active integrated radiation (IPAR), temperature, relative humidity, growth, production, and fruit quality of <jats:italic>Physalis ixocarpa</jats:italic> variety <jats:italic>Tecozautla</jats:italic>, cultivated under nets generating 60% shade in the colors beige, blue, green, red, and black and under a treatment without netting (control group). Different variables were observed: climatic variables, such as radiation, temperature, and relative humidity; growth variables, such as plant height and stem diameter; production variables, such as number, weight, and caliber of the fruit; and quality variables of the fruit, such as pH and total soluble solids. The highest <jats:italic>PAR</jats:italic>, IPAR, and temperature and lowest relative humidity were obtained in the absence of netting. The white net resulted in the highest <jats:italic>PAR</jats:italic> and IPAR but no difference in temperature or relative humidity. In addition, an increase in the height, stem diameter, number of branches, and weight, number, and size of the fruit was observed. The white net resulted in the highest yield: 88% higher than in the control group. The pH of the fruit was significantly higher under the white netting, and no differences among the treatments in terms of the content of total soluble solids were found.</jats:p>

Effect of Shading Percentage and Potassium Dosages on Growth and Yield of Cutleaf Groundcherry (Physalis angulata L.)

“…However, this finding indicated a varied response of physalis species to the presence of shading. The soluble solid contents of P. peruviana and P. pubescens were higher under 50% black net shading, while those of P. minima and P. ixocarpa were not different from the full sun (Da Silva et al, 2016;Morales et al, 2018). Higher light intensity might initiate gene and enzymatic activity for regulating the fruit ripening stage related to the increased sugar content of the fruits (Kapoor et al, 2022).…”

Effect of the Matric Potential on Growth and Water, Nitrate and Potassium Absorption of Vegetables under Soilless Culture

“…During the last three decades, coconut coir has become a widely accepted inorganic and organic substrate substitute, both in ornamental and vegetable crops and in herbaceous and even woody crops (Abad et al 2005;Evans and Stamps, 1996;Gallegos et al 2020;Gallegos-Cedillo et al 2018;Meerow 1995;Morales and Urrestarazu 2013;Morales et al 2018;Moya et al 2017;Pozo et al 2015;Stamps and Evans 1997;Urrestarazu et al 2008a;Urrestarazu et al 2016;Nájera and Urrestarazu 2019). Models of (1) cultural management (Cunha-Chiamolera et al 2017), (2) fertigation systems (Urrestarazu et al 2015), and (3) in comparison to inorganic substrates (Pozo et al 2014) have been developed using coir substrates as references.…”