"Sugar Tech"

doi: 10.1007/BF02945162pmid: N/A

Mali, V. R.;Thakur, R. P.

doi: 10.1007/BF02945154pmid: N/A

Abstract Of the 18 sorghum differentials tested, SRSV-Ind (Tx 2786 isolate) induced systemic necrotic red stripe reactions (DSR = 4) in four sorghum differentials (Redlan, Hegari, QL-3/ India, SCO-175-14E), mild mosaic (DSR = 2) in equal number of sorghum differentials (RTx 09, Martin, Caprock, RTx 7078) and severe mosaic (DSR s 3) in ten sorghum differentials (NM-31, BTx 623, QL-11, PI-35038, BTx 3048, Rio, Tx 2786, Atlas, SA-394, Cargill-40). Positive correlation between infectivity levels (IL), disease severity reactions (DSR) and virus titres (VT) was found only in two sorghum differentials (Cargill-40, SCO-175-14E) infected mechanically by SRSV-Ind. The virus (SRSV-Ind) was found distinct from MDMV-B (SCMV-MDB) in infecting nine sorghum differentials known to be resistant to MDMV-B, from SrMV in infecting three sorghum differentials (Tx 2786, QL-3, QL-11) known to be resistant to weif characterized SCMV strains and from MDMV-A in infecting QL-11 sorghum differential known to be resistant to MDMV-A.

Lal, M.;Singh, D. N.

doi: 10.1007/BF02945158pmid: N/A

Abstract In vitro callus cultures were raised from young leaf expiants of sugarcane hybrid varieties CoS 91269 and CoS 687. Maximum callus formation was recorded in presence of 4.0 mg I-1 of 2, 4-dichlorophenoxyacetic acid (2, 4-D) in both varieties. Numerous shoots were regenerated through the induction of adventitious shoot meristems from actively growing callus on Murashige and Skoog’s nutrient medium supplemented with 6-benzylaminopurine (0.5-2.0 mg I1). About 85% shoots developed root at their bases in presence of a-naphthaleneacetic acid (1.0 mg I’) and formed plantlets. The late maturing variety (CoS 91269) showed higher morphogenetic potential regarding callus formation and plantlet regeneration than the early maturing one (CoS 687).

doi: 10.1007/BF02945160pmid: N/A

doi: 10.1007/BF02945161pmid: N/A

Srivastava, H. M.;Srivastava, Sangeeta;Kumar, Rajesh;Misra, G. P.

doi: 10.1007/BF02945155pmid: N/A

Abstract Fourteen Interspecific Hybrids of Sugarcane (ISH lines) along with two commercial genotypes were evaluated for yield and quality attributes to find out the genetic divergence among the genotypes and the factors governing it, and to isolate genotype of divergent and distinct characteristics. The ISH lines were grouped into three clusters containing 6, 5 and 5 genotypes each. Intracluster D2 values ranged from 1.923–2.540 and intercluster from 3.707–4.986. Maximum divergence was present between cluster I and II and minimum between II and III indicating their close relationship. The contribution of cane yield, purity, % juice and CCS% at 12 months was maximum towards divergence.

Kumar, Vinay

doi: 10.1007/BF02945159pmid: N/A