Kamal Jit Singh , Harsh Nayyar , Archana Dutta , K. K. Dhir

Abstract

Vegetative propagation studies on the adventitious ischolar_maining of jojoba stem cuttings were made in response to the hormonal effects, ischolar_maining media and seasonal variations. The young sprouts of 1-2 year old branches were better than their green terminal shoot tips. Quick dip (20-30 sec) method of IBA proved to be effective. Yellowing of the underground portion of stem cutting marked the first morphological sign of ischolar_main initiation. IBA 24.6 mM with boric acid 0.5 mM as an additive was best utilized in causing rhizogenesis irrespective of the season. The ischolar_maining percentage success for stem cuttings was highcst (75%) in thc month of April but the survival of the ischolar_mained cuttings was better in February and September trials. Perlite and agropeat mixture (1:1) proved to be the most suited ischolar_maining medium for the purpose of adventitious ischolar_main formation in jojoba. However, for subsequent survival of the plantlets with well-formed ischolar_main system it is essential to transfer them to the soil and sand mixture. The ischolar_mained stem cuttings had no bearing upon the best ischolar_maining phase for their survival.

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Harsh Nayyar , S. K. Kaushal

Abstract

No abstract

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Balbir Singh , Harsh Nayyar , S. K. Kaushal

Abstract

Dendrocalamus hamiltonii Nees and ex Munro, a versatile Bamboo of H.P.shows limitation in mass propagation through vegetative method using culm cuttings due to low ischolar_maining. Application of auxins (IBA, NAA) and Phenols (Gallic acid, Resorcinol and Vanallic acid) in various doses and duration caused dose specific stimulation in sprouting, ischolar_maining, rhizome formation and survival of its one year old culm cuttings planted in March.

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Balbir Singh , Harsh Nayyar

Abstract

The aged seeds of Bamboo (Dendrocalamus hamiltonii L Munro) were treated with Indole-3-Butyric Acid (IBA) and GibbereIlins (GA₃), individually and in combination of various concentrations for 2 hours with an aim to stimulate germination and seedling growth. The germination percent, emergence period and subsequent seedling growth as ischolar_main and shoot length, internode length and number of leaves was improved significantly over the control by various pre-treatments. The combination of both hormones proved to be more effective than their individual application.

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