Agronomical and Physiological Characters of Kaffir Lime (Citrus hystrixDC) Seedling under Artificial Shading and Pruning

Abstract

Kaffir lime (Citrus hystrix DC) is a minor citrus and its leaves are locally used for spices and essential oils. This study aimed to evaluate agronomical and physiological characters of kaffir lime seedling under modified cultural practices in order to improve leaf production. Shading and pruning were applied on five-month-old seedling during the rainy season, November 2017 to March 2018 in Bogor, Indonesia. The results showed that shading significantly improved the plant growth by 84%, and leaf number by 37%. Pruning treatment reduced the plant height by 8% and increased the shoot number by 20%. However, leaf production was more influenced by shading rather than pruning, with an increase for about 59% than control. This study also revealed a significant improvement on photosynthetic rate, stomatal conductance and water use efficiency on shaded lime for about 13%, 8% and 14%, respectively. Leaf pigment was also altered in response to shading, i.e the increasing chlorophyll B by 23% and the reduction anthocyanin by 38% on shaded lime. Mild shading with 24% light reduction is recommended to gain the leaf production of kaffir lime seedling.

Production of G0 ‘Median’ Potato on Different Media Composition and Fertilizer Method

“…The heat stress on potatoes was reported to reduce the leaf size 29 and leaf area 30 , form a thinner petiole 31 and then constrain potato production 32 . Leaf chlorophyll content was reported to be an important variable since this result related to the rate of plant photosynthetic rate 33 .…”

Short Communication: Allometric model to estimate bifoliate leaf area and weight of kaffir lime (Citrus hystrix)

“…Many scientists used leaf measurement in various studies of ecology, plant stress, plant-environment interaction, and precision agriculture (Sestak et al 1971;Kinhal 2019). In earlier reports, both leaf variables also good proxies of plant growth (Salazar et al 2018) and plant physiological condition (Bleasdale 1984) in response to various stressing condition, such as pruning (Palliotti and Poni 2011;Budiarto et al 2018), grafting (Blanco and Folegatti 2005), shading (Budiarto et al 2019b), interspecific plant competition (Harper 1977), elevated CO2 (Ewert 2004), drought (Shekafandeh and Hojati 2012;Adamipour et al 2016;Dadashpour et al 2017), and salinity (Qrunfleh et al 2017). Leaf area is frequently used to monitor the biomass accumulation (Potter and Jones 1977;Weraduwage et al 2015), leaf expansion, and also net assimilation rate (Lakitan et al 2017), while leaf weight is used to measure relative growth rate, leaf harvesting index (Salazar et al 2018), and biomass accumulation (Tieszen 1982).…”

Short Communication: Agronomical characteristics of sweet corn under different plant growth regulators during the dry season

“…The present study found that the GA3 at 400 and 600 ppm produced a significantly higher plant than paclobutrazoltreated plants. Paclobutrazol also diverted photosynthates into the root system, leading to the limitation of canopy growth and plant height (Bridgemohan and Bridgemohan 2014), similar to the root pruning effect (Budiarto et al 2019a), but opposite to the canopy pruning effect (Budiarto et al 2019b).…”

“…Leaf was an important variable to be an appropriate proxy of plant growth (Salazar et al 2018;Hamdani et al 2022), morphological feature (Efendi and Budiarto 2022;Budiarto et al 2021a;2021b;Djarot et al 2021), phytochemical content (Efendi et al 2021), and physiological condition (Budiarto et al 2018;Budiarto et al 2019b). Leaf size, in terms of leaf length and width, of sweet corn at present proved to be significantly affected by the application of PGR.In theory, the application of GA3 was able to increase leaf length by increasing plant cell division and elongation, but higher doses of gibberellic acid inhibited leaf growth yielding shorter leaves (De Souza and MacAdam 2001; Utami et al 2018).…”