Assessment of feasibility for guava (<i>Psidium guajava</i>) grown in the fixed structure of field net-house

Chu, Yu-Chun; Chang, Jung-Chin

doi:10.17660/actahortic.2017.1166.14

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Net houses are used in the cultivation of many fruits in Taiwan, including papaya (Carica papaya L.) (Wang, 2004), Indian jujube (Zizyphyus maurtiana Lam.) (Chang and Wang, 2004), and guava (Psidium guajava L.) (Chu and Chang, 2017;Wu et al, 2017). As a protected facility, net house helps prevent diseases and pests and can substitute fruit bagging.…”

mentioning

confidence: 99%

Net Houses Effects on Microclimate, Production, and Plant Protection of White-fleshed Pitaya

Chien¹,

Chang²

2019

horts

View full text Add to dashboard Cite

Additional index words. cladode, flowering, fruit quality, bagging, pests and diseases, sunburn Abstract. To evaluate the comprehensive response of commercial cultivation of the whitefleshed pitaya (Hylocereus undatus 'VN White') under net house in Taiwan, experiments were conducted during the natural reproductive period (from June to Sept. 2016) with fruits grown within net houses (either 16 or 24 mesh insect-proof netting, without fruit bagging) or in an open field (the control, without netting, with fruit bagging). The effects of netting on microclimate, phenological period, flowering (floral bud emergence) of current and noncurrent cladodes (shoots) (2-to 3-year-old), fruit quality, market acceptability, pests and diseases control, and level of sunburn were investigated. Indoor solar radiation in the 16 and 24 mesh net houses were 78.12% and 75.03%, respectively, and the sunlight intensities [photosynthetic photon flux density (PPFD), mmol · m L2 · s L1 ] were 76.03% and 73.00%, respectively, that of control. The maximum daily temperature for the 16 and 24 mesh net houses was greater than that of the control. However, there were no significant differences in daily average temperature, minimum temperature, or relative humidity (RH). The first flowering cycle (12 June 2016) and last flowering cycle (11 Sept. 2016) in both net houses were the same as those in the control. The accumulative flowering of current cladodes was unaffected by net covering, but that of noncurrentyear cladodes in both net houses was lower than that in the control. Although the L* and C* values of fruit color in the 16 and 24 mesh net houses were lower than those in the control, the fruits still had commercial value. The average fruit weight of the 16 mesh net house was significantly greater than that of the control. Average total soluble solid (TSS) content, TSS content at the fruit center, and titratable acidity were unaffected. In addition, the 16 mesh net house blocked some large pests without exacerbating disease or sunburn. Our findings suggest that 16 mesh net houses may be useful for white-fleshed pitaya cultivation during its natural reproductive period in subtropical Taiwan.

show abstract

mentioning

confidence: 99%