Standardization of Nipping Technique for Enhancement of Seed Yield and Quality in Sunn Hemp

Abstract

A field experiment entitled “standardization of nipping technique for enhancement of seed yield and quality in sunn hemp” was conducted during Kharif 2019-20 and 2020-21 at Seed Production Block, NSP, Seed Unit, UAS, Raichur. The experiment was laid out in a randomized complete block design with fifteen treatments including nipping and foliar spray of cycocel and their combinations in three replications. The results emanated from the experiment recorded maximum plant height (cm), early 50 per cent flowering and maturity in T1 (no nipping). Whereas, nipping at 30 and 40 DAS and foliar spray of cycocel at 50 DAS (T15) recorded maximum number of branches per plant, chlorophyll content (SPAD Values), leaf area (cm2), number of pods per plant, seed yield per plant, seed yield (q ha-1), seed germination (%), total seedling length (cm), seedling dry weight (mg) and seedling vigour index I and II. While the nipping at 30 DAS and foliar spray of cycocel @ 1000 ppm at 40 DAS (T12) is a better option in terms of obtaining higher net returns and B:C ratio in sunn hemp. Whereas, maximum cost of cultivation was found in nipping at 30, 40 DAS and 50 DAS (T8).