Evaluation of Loofah Lines for Resistance to Tomato Leaf Curl New Delhi Virus and Downy Mildew, as well as Key Horticultural Traits

Narinder P. S. Dhillon, Mohammed Abu Taher Masud, Somchit Pruangwitayakun, Monpapa Natheung, Suyuporn Lertlam and Robert L. Jarret
Additional contact information
Narinder P. S. Dhillon: World Vegetable Center, East and Southeast Asia, Kasetsart University, Kamphaeng Saen, Nakhon Pathom 73140, Thailand
Mohammed Abu Taher Masud: Vegetable Division, Horticultural Research Center, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur 1701, Bangladesh
Somchit Pruangwitayakun: World Vegetable Center, East and Southeast Asia, Kasetsart University, Kamphaeng Saen, Nakhon Pathom 73140, Thailand
Monpapa Natheung: World Vegetable Center, East and Southeast Asia, Kasetsart University, Kamphaeng Saen, Nakhon Pathom 73140, Thailand
Suyuporn Lertlam: World Vegetable Center, East and Southeast Asia, Kasetsart University, Kamphaeng Saen, Nakhon Pathom 73140, Thailand
Robert L. Jarret: U.S. Department of Agriculture, Agricultural Research Service, Plant Genetic Resources Conservation Unit, 1109 Experiment St., Griffin, GA 30223, USA

Agriculture, 2020, vol. 10, issue 7, 1-14

Abstract: Two loofah ( Luffa ) species, the ridge gourd ( Luffa acutangula (L.) Roxb.) and the sponge gourd ( L. cylindrica (L.) M. Roem.; syn. L . aegyptiaca ), are cultivated widely in Asia by smallholder famers. Both species have significant economic and nutritional importance. However, Tomato leaf curl New Delhi virus (ToLCNDV) and downy mildew (DM) caused by Pseudoperonospora cubensis are important biotic constraints to loofah production throughout Asia. Loofah landrace-derived breeding lines, developed at the World Vegetable Center (WorldVeg), were evaluated at the WorldVeg East and Southeast Asia Research and Training Station, Kasetsart University, Kamphaeng Saen, Thailand—where natural epidemics of ToLCNDV and DM regularly occur. The lines were also evaluated for other commercially important horticultural traits such as days to 50% staminate and pistillate flowering, fruit color, fruit bitterness, and market segment classification. Thirteen and 59 lines of ridge gourd and sponge gourd, respectively, were determined to be resistant to both ToLCNDV and DM. These lines covered all market segments of loofah and exhibited variability for all of the evaluated horticultural traits. The results of these evaluations and their implications on loofah breeding are discussed.

Keywords: Luffa acutangula; Luffa cylindrica; Tomato leaf curl New Delhi virus; downy mildew; resistance; fruit traits; evaluation; germplasm (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2077-0472/10/7/298/pdf (application/pdf)
https://www.mdpi.com/2077-0472/10/7/298/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jagris:v:10:y:2020:i:7:p:298-:d:384620

Access Statistics for this article

Agriculture is currently edited by Ms. Leda Xuan

More articles in Agriculture from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().