Basal Stem Rot (BSR), a disease caused by Ganoderma boninense (G. boninense), has posed significant concern for the oil palm industry, particularly in Southeast Asia, as it potential to cause substantial economic losses. The breeding programme is currently searching G. boninense-resistant planting materials, which necessitated intense manual screening nursery track progression of development re...

Interaction among and between mushroom / white rot and brown rot fungi or soft rot fungi, studied by the dual culture plate assays showed that the outcome of a specific interaction was strongly dependent on the two organisms concerned. Phanerochate chrysosporium as one of the partner in dual cultures, invariably scored grade 2 for colony interaction as it overgrew and covered the colony of othe...

چکیده پوسیدگی عمومی طوقه و ریشه گندم در سال های اخیر به عنوان یک بیماری مهم در استان خراسان شمالی جلب توجه نموده است. به منظور شناسایی عامل یا عوامل اصلی قارچی بیماری در سال های زراعی 86- 1385و87 - 1386 نمونه برداری هائی از مزارع گندم آبی مشکوک به بیماری درمناطق شیروان، فاروج، بجنورد، اسفراین و مانه و سملقان در سه مرحله گیاهچه، پنجه زنی تا ساقه رفتن و ظهور سنبله تا سفت شدن دانه به عمل آمد. از ب...

Chestnut ink disease represents a great risk for chestnut (Castanea sativa Mill.) in all regions of chestnut production of Europe and North America. Induced by soil borne oomycetes, Phytophthora cinnamomi and P. cambivora, both parasites infect the root system and cause root and collar rot resulting in dieback, decline and finally, the death of infected trees. There are no single control measur...

The Polygonum orientale L. extracts were investigated for antibacterial activity against Clavibater michiganense subsp. sepedonicum (Spieckermann & Kotthoff) Davis et al., the causal agent of a serious disease called bacterial ring rot of potato. The results showed that the leaf extracts of P. orientale had significantly (p<0.05) greater antibacterial activity against C. michiganense subsp. sep...

Journal of Plant Registrations, Vol 2, No. 2, May 2008 137 Three F8–derived breeding lines, W6 26740 (RIL 846_34; GP-96, PI 652444), W6 26743 (RIL 846_40; GP-97, PI652445), and W6 26745 (RIL 847_36; GP-98, PI 652446), of green pea (Pisum sativum L.) were selected from a recombinant inbred line population developed by the USDA–ARS in 2000. These lines are unique in combining high levels of resis...

An attempt has been made to assess the status of different cane diseases in the South African sugar industry. Factors taken into account are present incidence, potential for further spread,, estimated losses in yield and possibilities for control. It is shown that diseases are causing significant losses in yield but that the major proportion of present losses, that due to ratoon stunting diseas...