International Journal of Plant Protection

L. B. Yadav ¹, K. P. S. Kushwaha ¹, R. P. Maurya ¹

Affiliations
1 Department of Plant Pathology, College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar (Uttarakhand), IN

Abstract

Pigeonpea [Cajanus cajan (L.) Millsp.] is very important and old pulse crop, which is used in various ways. Its main use is in the form of Dal (split seed) in the Indian diet. The phytophthora stem blight caused by Phytophthora drechsleri f.sp. cajani is the third potentially important disease of pigeonpea crop after wilt and sterility mosaic wherever crop is grown during Kharif season mostly in northern parts of India. The present investigation was undertaken with an objective to develop disease resistant material by screening of pigeonpea germplasm against phytophthora stem bight. A screening trail was conducted by employing fourty pigeonpea germplasms, in which Only one germplasm namely ERG-65 was found resistant, however, 27 germplasms included HY-3C, KPL44, MA-06, Vipula 42, WRP-1, Pusa-992, BDN-711, RVSA-07-22, AL-1593, RVSA-07-10, GAUT-001, BSMR-853, BSMR-2, JICM-189, BSMR-579, BSMR- 571, RVKT-260, KPL-43, AL-1798, RVKT-261, CORG-9701, GT-101, BRG-2, AKT-8811, RVSA-7-29, ICPL-8863, and ICPL-87119 were found moderately resistant. Resistant germplasm namely ERG-65 may be utilized as a resistant donor in developing resistant variety against the phytophthora stem blight.

Keywords

Germplasm, Phytophthora drechsleri f. sp. Cajani, Pigeonpea, Registance, Susceptible.

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L. B. Yadav ¹, M. S. Negi ²

Affiliations
1 Department of Plant Pathology, College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar (Uttarakhand), IN
2 Department of Agronomy, College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar (Uttarakhand), IN

Abstract

The study was conducted at VCSG, College of Horticulture, Bharsar, Pauri Garhwal, at an altitude that 1800-2300 m above mean sea level. Swertia spieces, (Gentianaceae), reported indigenous to temperate Himalaya, are considered the most important for their medicinal properties. Its medicinal properties are reported in Indian pharmaceutical codex, and different traditional systems of medicines such as the Ayurveda, Unani and siddha. Its whole plant is used in making different medicine. The principle phytochemical present in Swertia herb is amarogentin and widely used by the pharmaceuticals for making drugs against malaria, diabetics and mensturyl syrup etc.

Keywords

Leaf Spot, Alternaria alternata, Swertia spp.

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