EFFECT OF ROOTING MEDIA AND IBA ON  RHIZOGENESIS AND GROWTH OF TERMINAL  CUTTINGS IN BER (Ziziphus mauritiana Lamk)  Cv. APPLE BER

MAHESH S S N MOKHAMATLA

EFFECT OF ROOTING MEDIA AND IBA ON RHIZOGENESIS AND GROWTH OF TERMINAL CUTTINGS IN BER (Ziziphus mauritiana Lamk) Cv. APPLE BER

Date

2019-10-19

Authors

MAHESH S S N MOKHAMATLA

Publisher

COLLEGE OF HORTICULTURE,VENKATARAMANNAGUDEM W.G. Dist. – 534 101 ANDHRA PRADESH

Abstract

The present investigation entitled “Effect of rooting media and IBA on rhizogenesis and growth of terminal cuttings in ber (Ziziphus mauritiana Lamk) cv. Apple ber” was carried out during the period from October, 2018 to March, 2019 under the supervision of the Department of Fruit science, College of Horticulture, Venkataramannagudem. This trial was conducted in a mist chamber available at Kadiyadda village, Tadepalligudem mandal, West Godavari District, Andhra Pradesh with an objective of finding out the best type of rooting media, IBA concentrations and methods of application for successful propagation. The terminal cuttings were planted in three types of media viz., coco peat, vermiculite and saw dust, treated with IBA at three concentrations i.e., 1000 ppm, 1500 ppm and 2000 ppm. Methods of application two types i.e., cuttings treated with mixture of IBA and talcum powder and cuttings treated with IBA solution for 5 minutes. The experiment was conducted in Factorial Completely Randomized Design with the above three factors at unequal levels and replicated thrice. The study revealed that significant difference among rooting media, IBA concentrations, methods of application and their interactions for different root and shoot parameters. Among the three rooting media, coco peat performed superior for different root and shoot parameters. Among the IBA concentrations and methods of application, the one at 1000 ppm with IBA solution for 5 minutes method was found to be superior among the interactions in respect of different root and shoot parameters. The root parameters were significantly influenced by main treatment factors as well as their interactions from 60 days after planting onwards. At 120 DAP, number of roots per cutting, length of the longest root per cutting, fresh weight of roots per cutting and dry weight of roots per cutting were found to be maximum in those terminal cuttings planted in coco peat media, IBA @ 1000 ppm and cuttings treated with IBA solution for 5 minutes as well as their combination. Similar trend was observed in case of shoot parameters also at 120 days as evident from the results on number of shoots per cutting, length of longest shoot per cutting, number of leaves per cutting, fresh and dry weight of shoots per cutting, root to shoot ratio (on dry weight basis). Percentage of rooted cuttings during hardening process, days to first sprouting of terminal cuttings at 45 and absolute growth rate and days taken for plantable size at 90 days after planting were recorded. From the present investigation, it can be concluded that the terminal cuttings planted in coco peat media, IBA @ 1000 ppm and cuttings treated with IBA solution for 5 minutes gave pronounced effect on root and shoot formation indicating its effectiveness for propagation in ber cv. Apple ber .

Description

1. The effect of other rooting media or rooting media combinations may also be studied. 2. The effect of other rooting hormones alone or in combination with IBA and NAA may also be studied. 3. The effect of other method of application like lanoline paste method may also be studied. 4. Propagation of apple ber by terminal cuttings in different months, need to be evaluated.