Influence Of NAA Research Articles

Influence of NAA and Zinc Sulphate on Fruiting Parameters and Marketable Yield of Litchi (Litchi chinensis Sonn.) cv. Rose Scented

This experiment was conducted in 2022 and 2023 at the Horticulture Garden, Department of Fruit Science, C.S. Azad University of Agriculture and Technology, Kanpur (U.P.). On three replications with sixteen treatments, the Factorial Completely Randomized Design (CRD) was used, four levels of NAA (0, 25, 50, and 75 ppm), zinc sulphate (0, 0.2, 0.4, and 0.6 percent), and their combination were sprayed twice, on January 28 and March 16 of each year, respectively, before flowering and fruit setting (at pea stage). This study examines the effects of NAA and ZnSO4 on litchi cv. Rose scented for enhanced flowering, and high yield of improved quality fruits of litchi. According to the findings, the treatment with NAA 50ppm and 0.4% zinc improved fruiting-like; fruit set per panicle (258.90 and 259.41), fruit count before the second foliar spray at the pea stage (45.81 and 49.19), fruit count at pit hardening stage (39.15 and 38.70), fruit count at ripening stage (22.80 and 23.44) with a decreased fruit cracking (2.14 and 2.10) and higher yield of marketable fruits (78.34 and 78.29 kg/plant). The consequences of the medium concentration also showed the highest physical parameters of fruit length (3.57 and 3.60 cm), largest fruit diameter (3.22 and 3.20 cm) and fruit weight (20.12 and 22.28 g). It was concluded that the application of NAA and zinc had a non-significant impact on fruiting and quality of litchi, resulting in maximum fruit set and retention and yield-related characteristics like fruit weight that ultimately led to an increase in the yield per plant.

Influence of NAA and coconut water with variation of soaking duration on the growth of yellow bamboo branch cutting

Setiawati T, Keliat APR, Budiono R, Partasasmita R, Iskandar J. 2018. Influence of NAA and coconut water with variation of soaking duration on the growth of yellow bamboo branch cutting. Nusantara Bioscience 10: 178-182. Yellow bamboo (Bambusa vulgaris Schrad Ex. var. Striata) is one kind of bamboo used for industrial and household raw materials. Yellow bamboo propagation with branch cuttings has relatively low percentage of growth. To increase the growing success of yellow bamboo branch cuttings can be used growth regulators substance, such as NAA and coconut water. This study aimed to obtain the best combination of NAA and coconut water with the soaking duration in the growth of yellow bamboo branch cuttings. The study was conducted using Completely Randomized Design (CRD) of 6 × 3 factorial arrangement with five replications. The first factor was the combination of NAA and coconut water (CW), which consisted of six levels, namely 100% CW, 20% NAA + 80% CW, 40% NAA + 60% CW, 60% NAA + 40% CW, 80% NAA + 20% CW and 100% NAA. The second factor was the soaking duration which consists of three levels, namely 12 h, 24 h, and 36 h. Parameters observed included shoot emerging time, shoot number, shoot length, leaf area, root number and root length. The data obtained were analyzed using the Analysis of Variance (ANOVA) and Duncan's Multiple Range Test (DMRT) α=5%. The results showed that the combination of 80% NAA + 20% CW gave the best yellow bamboo branch cuttings growth with an average shoot length of 1.44 cm, leaf area 41.29 cm2, root number 42.87 and root length 23.70 cm. The interaction of 80% NAA + 20% CW with soaking duration of 36 h resulted in average the fastest shoot emerging time of 2.02 days after planting.

Effect of NAA, triacontanol and boron on seed viability and vigour in bitter gourd (Momordica charantia L.) cv. PUSA VISESH

An investigation was carried out in order to know the influence of NAA, triacontanol and boron viability and vigour level of seed in bitter gourd cv. PUSA VISESH. Resultant seeds were stored in cloth bags under ambient storage condition and seed quality was tested after every month upto end of storage period. Results revealed that NAA 50 ppm recorded highest seed germination and seedling vigour index (83.25% and 1757, respectively). Whereas, boron at 4 ppm recorded higher speed of germination and seedling length (18.23 and 21.16 cm, respectively). Storage study reveled that boron at 4 ppm maintained highest seed viability and vigour quality till the end of twelve months storage period.

The Influence of NAA, GA3 and Calcium Nitrate on Growth, Yield and Fruit Quality of "Le Conte" Pear Trees

The Influence of NAA, GA3 and Calcium Nitrate on Growth, Yield and Fruit Quality of "Le Conte" Pear Trees

The effect of Tiron, a water soluble radical scavenger, on growth, morphology and alkaloid content of adventitious roots in Atropa belladonna.

The effect of Tiron (disodium 1,2-dihydroxybenzene-3,5-disulfonate) on the growth, morphology and alkaloid content of adventitious roots in Atropa belladonna was investigated. High concentrations of Tiron had an inhibitory effect on growth of the root. The appearance of cultured roots was significantly changed from rough roots accompanied with callus-like tissue in control cultures to fine roots without callus formation. Alkaloid content was drastically increased by the addition of 1 mM Tiron to the medium. The influence of NAA, which has an inhibitory effect on alkaloid production, was partially restored by Tiron treatment, indicating that this radical scavenger may affect the production of alkaloids through modulation of the mode of action of auxin. Glutathione content of the root was not influenced by Tiron.

The Influence of NAA and 2,4–D on the Steroidal Fractions of Trigonella foenum graecum Static Cultures

Static cultures of Trigonella foenumgraecum L. were grown on Murashige and Skoog's medium with either NAA or 2,4–D as the essential growth hormone. Yields of free sterol and of bound (acid released) sterol and sapogenins were compared by GLC analysis. With NAA, sitosterol was the major sterol found; with 2,4–D the yield of stigmasterol was greater than with NAA and in some 2,4–D cultures it was the major sterol. With NAA, low but significant yields of monohydroxysapogenins were recovered whereas with 2,4–D only trace amounts were obtained; no dihydroxysapogenin was found. Seed used to initiate the cultures afforded acid released mono– and di–hydroxysapogenins, with sitosterol as the major free sterol, but no stigmasterol.

Betacyan-Akkumulation in Kallus von Portulaca grandiflora var. JR unter dem Einfluß von Phytohormonen und Cu2 +-Ionen auf unterschiedlichen Grundmedien

The influence of NAA and adenosine on the syntheis of betacyans in callus of Portulaca grandiflora , var. JR was demonstrated. Kinetin also has an effect and it was possible to determine an optimum. However, the composition of the basalmedium is an additional factor, which may control the synthesis of betacyans and/or the action of the phytohormones. Inorganic components, as Cu 2 + -ions, which can act as co-factors, where shown to influence the accumulation of betacyan in callus of Portulaca grandiflora , var. JR.

The Influence of NAA, BA and Temperature on Shoot and Root Development from Begonia×cheimantha Petiole Segments Grown in vitro

AbstractThe effect of exogenously supplied NAA and BA on the shoot and root formation in isolated petiole segments of Begonia×cheimantha was determined in vitro on a modified White medium at a constant temperature of 24°C. The best development of normally appearing plants was obtained on media containing 0.01 mg × 1−1 of NAA and 0.5 to 1.0 mg × 1−1 of BA. Lower concentrations of BA yielded no shoots, higher concentrations promoted shoot formation, but the shoots were abnormal with malformed leaves. Lower concentrations of NAA resulted in poorer survival rate and no roots, with higher concentrations of NAA many roots developed, but these were thickened and their longitudinal growth inhibited. Temperature proved to be of utmost importance for the induction of shoot formation. Thus significantly fewer shoots were formed at the higher temperature (25°C) than at lower temperatures (15 to 20°C). Temperature immediately after initial transfer was of greatest importance: 25°C, during the first week followed by low temperature, produced very few shoots.