BP Singh

Promising Introductions in Horticultural Plants and Oil Seeds 75cultivars have been introduced from ·.Belgium as tissue culturedmaterial for establishment/ multiplication/ evaluation andutilization.(ii) Citrus spp. : Some of the major problems faced by citrusindustry in India are owing to citrus die back, citrus canker, tristesaand greening viruses, nematodes, Phytophthora, waterlogging and'salinity. Some of the commercial cultivars of sweet orange(c. sinensis), blood drange, acid lime, satsuma mandarins, mandarinhybrids and citrus rootstocks resistant to die-back, nematodes, etc.have been introduced from USA, Japan, Thailand, Peru, Portugaland Belgium. In sweet orange (c. sinensis) cultivars Toroceo Blood(USA), Sunramon (Peru), Vainiglia Snguigno (Portugal); in bloodorange eultivars 'Tha' and 'Thai'; in acid lime (c. aurantifolia)cultivar 'Star! Ruby'; in grape fruit cultivar Moga are prominentintroductions.The prized eultivars of Satsuma mandorm (c. unshiu) Macowitchinclude Mihowase, Oktiwase, Miyagawase, Sogiyama, unshiufrom Japan and in mandarin hybrids like Fortune, Page, Wilking,Pixi and others are useful introductions from USA and Japan.(iii) Datepalm (Phoenix dactylifera> : Cultivars Khalasa, Basshi,Naghal and Khaneji are useful introductions from Sultanate ofOman; cultivars Tayar, Hatemi, Mejnaj, Khalas, Ruziz and Khesabfrom Saudi Arabia; cultivars Zaghlool, Samani, Amri, Saklote fromEgypt are promising introductions. The cultivar Khadrawy hasshown resistance to 'Graphiola' leafspot at Hissar.(iv) Fig (Ficus carica) : 52 cultivars have been introduced fromUSA, Iran, UAE and Egypt. Some of the prominent ones are'Genoa white', 0030 Genoa, 009 Flanden, Candsia, 0032 (Adriatic),Mission and others are some of the useful introductions. These areunder evaluation at llHR, Bangalore.(v) Grapes (Vitis vinifera) : The earlier promising introductionsinclude Thompson seedless, Perlette and Beauty seedless fromUSA and Kishmish beli and Kishrnish chorni from USSR. A goodnumber of commercial cultivars as well as Vitis species have beenintroduced from Australia, Brazil, USA, Russia, Portugal andCanada having desirable characteristics such as earliness, betterberry quality, higher sugar content, disease resistance andsuitability for preparation of wine and raisins and for table