Dimabuyu, Arce Q. <br/><br/>
Stem cutting propagation of sour and sweet tamarind (tamarindus indica l) accessions applied with different exogenous rooting hormone  [manuscript] / 
Arce Q. Dimabuyu. 
 - Magalang, Pampanga :  Pampanga State Agricultural University,  August 2021. 
 - ix, 66 leaves ;  28 cm. + 1 computer disc (4 3/4 in.) 
<br/><br/>This study aimed to determine the effect of application of commercially available rooting hormones on the survival and initial growth of stem cuttings of two accessions of tamarind (Sweet and Sour Tamarind). It employed 2x4 factorial design with variety of Tamarind (Zaramindus indica L) (Sweet and Sour) as Factor A and the type of rooting hormone (Untreated, ANAA, IBA, Hormex) as Factor B. A total of six (6) parameters were measured namely, Number shoot, Length of shoots, Number of roots, Length of roots, Root shoot ratio and Survivability percentage. measured after 60days of observation. The experiment was conducted in Barangay Buensuceso Arayat Pampanga.     Two-way analysis of variance (Two-way ANOVA) was employed to determine if there are significant differences between the means of Variety and Rooting Hormone treatment, and their interaction effect. In cases where there were significant differences, REGWQ analysis was run to determine which treatments are significantly higher or lower that the others.     The result showed that the application of rooting hormone significantly contributes to the survival and growth of tamarind cuttings as compared to untreated cuttings, with Sour Tamarind variety performing relative better than Sweet Tamarind. In all parameters, no significant interaction effects were found.     Comparing the general effect of rooting hormone, the cuttings treated with any rooting hormone resulted to significantly higher observation (p-vale < 0.05) in all six parameters measured, as compared to the untreated cuttings. This is because all untreated cuttings died 60 days after planting. Hence, the computed value in all parameters of the untreated cuttings was zero. Thus, looking at the significant differences on the response of cuttings treated with rooting hormone would be more sensible. However, the result showed that cutting treated with the rooting hormones used in this study (ANAA, IBA, Hormex) did not significantly differ in all the six parameters measured. Meaning, the effect of different rooting hormone to rooting, survival and growth of Tamarind cuttings is Statistically the same. Thus, there is no specific rooting hormone that performed better than other rooting hormone.     This is the numerical values of the each parameters per treatment tested in the experiments. In terms of Average Number of shoots treated with ANAA, IBA, Hormex an average of 4.99, 4.40 and 4.76 respectively. In Length of shoots, Cuttings treated with ANAA have a mean length of shoot of 4.09cm, while those treated with IBA and Hormex has a mean of 3.89cm and 3.94, respectively. In terms of Number of roots treated with ANNA produced the highest number of roots (mean=6.07), followed by IBA (mean=5.95) and then by Hormex (mean™ 5.92). Meanwhile, in length of roots cuttings treated with ANAA have a mean length of shoot of 3.80cm, while those treated with IBA and Hormex has a mean of 3.94cm and 3.92, respectively. In reot shoot ratio Cuttings treated with IBA have the highest computed mean root-shoot ratio of 2.10, followed by those treated with Hormex (1.97) and then by ANAA (1.93) respectively. In terms of Percent of survivability cuttings treated with ANAA, IBA, and Hormex was significantly higher than untreated cuttings with averages of 11.67%, 11.67% and 11.00% respectively.