Informatics Publishing Limited

N. Roychoudhury , Manish Chourasia , Parvez Jalil , K. C. Joshi

Abstract

A study was made to measure the differences among the progeny of 12 Teak clones of Madhya Pradesh, viz. C-5, 6, 8, 11, 60, 72, BBC-23, 28, 44, BSC-28, CSC-9 and KEKC-7, for damage impact and feeding potentiality of the larvae of Eutectona machaeralis (Walker), in nursery and laboratory respectively. Based on the level of larval defoliation impact and leaf consumption, response of this pest exhibited that progeny of clone CSC-9 of Chhindwada Sillewani was least preferred followed by C-11 and C-8 of Seoni Kurai, whereas most preferred clonal progeny was KEKC-7 of Khandwa East Kalibheet followed by BSC-28 of Betul Sarni. The weight gained by larvae fed on leaves of least and most preferred clonal progenies were significantly (P<0.05) reduced and greater than those of others respectively. The leaf water content of clonal progeny showed a gradual increase in relation to leaf consumption. All the parameters included in the study showed positive and significant (P<0.05-P<0.01) correlation. The findings suggest that the variation in progeny of Teak clones may play a decisive role for differential reaction of this insect pest.

Keywords

Leaf Skeletonizer, Eutectona machaeralis (Walker), Response, Teak Clones,
Progeny, Madhya Pradesh

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Parvez Jalil , P. K. Shukla

Abstract

A peculiar phenomenon, after flowering has been observed in Dendrocalamus giganteus. After flowering in February, 2005, the clumps continued its growth through emergence of new clumps till 2008. The average seed weight per clump was 55.53±6.21 mg and average germination was 53 per cent. The fruit/seed setting was very poor.

Keywords

Flowering Behavior, Seed Characteristics, Dendrocalamus giganteus

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Ram Prasad , Parvez Jalil

Abstract

An experiment to test the viability of freshly collected sal seeds (1985) from trees of different girth classes was undertaken. Sal seed was collected from Amarkantak (Distt. Shahdol). Some seeds were also stored in air-tight polythene bags for about two months 10 test their viability. It was observed that the deterioration in Sal seed takes place very fast unless it is properly stored. Severe insect damage to sal seeds appears to be responsible for the loss of seed viability.

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