Influence of Nipping and Hormonal Sprays on Growth and Seed Yield in Field Bean [Lablab purpureus (L.) Sweet] Genotypes

Abstract

A field experiment was conducted to know the influence of nipping and hormonal sprays on growth and seed yield of field bean genotypes at the Main Agricultural Research Station, University of Agricultural Sciences, Dharwad. The treatments include two genotypes (G 1 : DA-8, G 2 : HA-3), two nipping operations (N 1 : No nipping, N 2 : Nipping), hormonal sprays (S 1 : Water spray as control, S 2 : GA 3 @ 50 ppm and S 3 : MH @ 50 ppm) and their interactions. Genotype HA-3 recorded higher number of branches (13.27), dry matter (266.34 g plant -1 ) and seed yield (1966 kg ha -1 ) at harvest as compared to genotype DA-8 . Nipping of plants at 55 DAS lead to decrease in plant height but increased the number of branches (14.20), dry matter (283.02 g plant -1 ) and seed yield (2166 kg ha -1 ). Among hormonal sprays, plants sprayed with GA 3 recorded higher plant height (136.77 cm) while, the other growth parameters recorded were higher with MH application and also registered higher seed yield (1953 kg ha -1 ). The interaction effect between G ´ N, G ´ S, N ´ S and G ´ N ´ S were non significant for majority of the characters studied. However, in both the genotypes nipped plants sprayed with MH recorded higher growth and yield parameters compared to either GA 3 or water sprays and also with no nipping.Field bean, genotypes (G), gibberellic acid (GA 3 ), maleic hydrazide (MH), nipping (N), seed yield Abstract Article History

Effect of Foliage Cuttings on Seed Yield and Quality of Coriander (Coriandrum sativum L.)

“…The overall genotypic mean irrespective of cuttings resulted that DH-228 was found maximum number of branches per plant (6.17) followed by DH-246 (6.07) and minimum in DH-36 was (5.72) among the genotype. These results are in accordance with the findings of Malik [6], Duhan [7], Verma [9] and Kumar [10] in coriander.…”

Nitrogen use efficiency, economic return and yield performance of Pigeonpea [Cajanus cajan (L.) Millsp.] as influenced by nipping and fertility levels

“…The taller pigeonpea plants noticed with no nipping was mainly due to the fact that plants were not nipped and as such plants grew to their original height without reduction. Similar results has also been recorded are by Kumar et al, (2018).…”

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

“…The better development of seed owing to greater accumulation of storage reserves, which in turn might have utilized for germination and seedling growth resulted in maximum total seedling length and seedling dry weight. These results are in resemblance with Sudeep Kumar et al [33] in field bean. Similar increase in total seedling length with apical bud nipping and foliar spray of cycocel was earlier revealed by Gopal Singh and Rama Rao [38] in sunflower.…”

“…It might be due to increase in the photosynthetic area leading to higher photosynthetic rate, better assimilation and accumulation of more photosynthates resulting into better seed development which resulted in production of healthy and bold seeds with more reserve food material as synthesized photosynthates might have translocated to seeds. These findings are in resemblance with Sudeep Kumar et al [33] in field bean. Similar increase in germination of seed with apical bud nipping and foliar spray of cycocel was earlier revealed by Venkata Reddy et al [34] and Sajjan and Jamadar.…”