The narrow genetic diversity and short market availability of litchi (Litchi chinesis Sonn.) are the main constrains for its cultivation more profitable in Indian sub-continent. Late season litchi cultivars in subtropical and tropical India are prone to fruit cracking and diseases susceptibility. Seven promising selections and four late season commercial cultivars viz; CHES-1, CHES-2, CHES -3, CHL-5. CHL-7, Lal Bombaiya, Late Bedana, Purbi, Selection -3-7, Selection 8-1 and Swarna Roopa were evaluated during 2014-15 at ICAR-RCER Ranchi, based on physico-chemical characters, cracking habit and diseases susceptibility. The results revealed that the cultivars Purbi, Lal Bombaiya and Late Bedana were cracking resistant. The maximum fruit weight was found in the cultivars Lal Bombaiya (22.0 g ) being comparable with Late Bedana (21.2 g) and CHES-2 (21.0 g). The cultivars Lal Bombaiya and CHES –2 had the highest aril weight of 19.44 g and 17.66 g, respectably. The maximum TSS of 22.2 0B was found in CHES-1 both in Jharkhand and Bihar. Late Bedana cultivar had high sugar acid ratio (73.52) with pomegranate flavor and popular for local market. Litchi fruit borer mainly attacked Lal Bombaiya and CHES-2 at early stage whereas the cultivars Purbi and Swarna Roopa were affected (3-6% bunch) by litchi stink bug (Tessaratoma javanica) at late harvest season. From the present study, it was concluded that CHES-1, Lal Bombaiya, Purbi and Late Bedana were promising late season cultivars for commercial cultivation with effective management of litchi fruit borer and stink bug.
Diseases, Fruit cracking, Late season, Litchi, TSS
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