_____________________________________________________________________________________________________ *Corresponding author: E-mail: thejaangami@yahoo.com; Current Journal of Applied Science and Technology 39(14): 119-124, 2020; Article no.CJAST.56886 ISSN: 2457-1024 (Past name: British Journal of Applied Science & Technology, Past ISSN: 2231-0843, NLM ID: 101664541) Standardization of Optimum Planting Time on Yield and Fruit Quality of Banana var. Grand Naine under Mid Hill Condition of Arunachal Himalaya Thejangulie Angami 1* , Homeswar Kalita 1 , Jitendra Kumar 2 , D. Ramajayam 3 , Raghuveer Singh 1 and Anup Chandra 4 1 ICAR (Research Complex) for NEH Region, Arunachal Pradesh Centre, Basar-791101, India. 2 ICAR-IISS, Nabibagh, Berasia Road, Bhopal-462038, India. 3 ICAR- National Research Centre for Banana, Thogamalai Road, Tiruchirapalli-620102, India. 4 ICAR- Indian Institute of Pulses Research, Kalyanpur, Kanpur-208024, India. Authors’ contributions This work was carried out in collaboration among all authors. All authors read and approved the final manuscript. Article Information DOI: 10.9734/CJAST/2020/v39i1430709 Editor(s): (1) Dr. Rodolfo Dufo Lopez, University of Zaragoza, Spain. Reviewers: (1) Luciana Cardoso Nogueira Londe, Empresa de Pesquisa Agropecuária de Minas Gerais, Brazil. (2) Moataz Eliw Mostafa, Al-Azhar university, Egypt. Complete Peer review History: http://www.sdiarticle4.com/review-history/56886 Received 07 March 2020 Accepted 12 May 2020 Published 15 June 2020 ABSTRACT A field experiment was executed during 2013-16 at ICAR Research Farm, Gori, ICAR (Research Complex) for NEH Region, Arunachal Pradesh Centre, Basar to find out the optimum planting time for yield and quality attributes of Grand Naine banana. The experiment was laid out in RBD having five treatments with four replications. The study divulged that the planting dates had a significant influence on growth, yield and fruit quality of banana. Fruits harvested from mid-may planting recorded the highest in yield based parameters viz. number of hands per bunch (13.17), number of fingers per bunch (162.63) and bunch weight (24.67 kg) respectively. However, fruits from mid-june planting exhibited the highest finger weight (148.67 g) which was statistically at par with mid-may planting (147.54 g). It was noted that plants of mid-june planting produced the maximum number of functional leaves at the shooting stage (15.38) which was found at par with mid-may planting (15.13).The fruit quality attributes like sugars, ascorbic acid, acidity were also influenced by planting times whereas it had no significant effect on TSS content of the fruits. Fruits from mid-may plant recorded the highest TSS (21.03°Brix), minimum acidity (0.23%) and highest ascorbic acid content Original Research Article