Response of French bean (Phaseolus vulgaris) genotypes to nitrogen

Response of French bean (Phaseolus vulgaris) genotypes to nitrogen

S. C.NEGI' AND J. SHEKHW

Regional Research Station, Himachal .Pradesh Krishi Viswavidyalaya, Kukumseri 175142 Received: April 1992

A field experiment was conducted.during the summer 1990 at Kukumseri, to study the comparative performahce of 4 genotypes of French bean (Phaseolus vulgaris L.) ('Katrain l', 'Kim l', 'B 4' and 'B 6') at different levels of nitrogen (0, 30,60 and 90 kgha). The experiment was laid out in split- plot design with 3 replications, keeping

genotypes in main plots and N levels in sub- plots. The soil was sandy loam, rich in organic matter (2.4%) with near neutral reaction (pH 6.8). The available N, P and K in the soil were 600, 10 and 160 kgha respectively. The crop was sown in lines 30 cm apart on 21 May and given a basal dressing of 100 kg P,O, and 50 kg qOha and the whole nitgrogen as per treatment.

All the genotypes differed significantly for grain yield and yield attributes (Table 1). 'B 6' showed significantly higher plant height than the other genotypes in our study.

Brancheslplant, podslplant and grain yield

(19.90 qha) were also maximum in the genotype. Nitrogen @ 60 and 90 kgha being at par resulted in significantly higher grain yield than that at 0 and 30 kgha. Nitrogen application exerted significant beneficial effect on yield attributes which in

Table 1. Effect of N and variety on yield and yield attributes of Franch bean

Treatment Plant Branches1 Pods1 Grain Straw height plant plant yield yield (cm) (qha) (qha)

.-... Variety

.,. 'Katrain 1' 35.1 14.8 10.6 14.5 18.8

'Him 1' 28.9 15.3 12.4 17.8 18.2 'B 4' 29.5 18.3 14.1 18.2 18.5 'B 6' 38.7 19.1 15.1 19.9 20.9 CD (P = 0.05) 3.2 4.2 3.9 1.9 NS

Present address: 'b2Department of Agronomy, HPKV, Palarnpur 176 062 NEGI AND SHEKHAR [Vol. 38, No. 2

turn increased the grain and straw yields. The results confirm the findings of Masood Ali and Tripatbi (1988) aid Srinivas and Naik (1988).

The relationship of grain yield and N application was quadratic and the following equations were computed: 'Katruin 1'

Y = 2 823.9 + 73.18 X -0.56444 X 'Him 1' Y = 3 513.0 + 85.365 X-0.63083 X

'B 4' ,

Y = 3 728.1 + 78.1367 X-0.56389 X 'B 6' Y = 3 978.4+ 90.6967 X-0.66389 X

Indian J. Agron. 38 (2) :322-323 (June 1993)

The economic optimum doses of N were 64.20, 67,15, 68.72 and 67.83 kgha for 'Katrain 1'' 'Him 1'' 'B 4'. and 'B 6' respectively.

Ali Masood and Tripathi, A. 1988. Dry matter accumulation and yield of winter french bean

(P. vulagarir) as influenced by genotypes, nitrogen levels and plant population. Indian Journal of Aricutlural Sciences 58 (4) : 263-267.

Srinivas. K. and Naik, K. 1988. Response of vegetable French bean (Pbeolus vulgaris) to N and P-fertilization. Indiati Joumal of Agricultural Sciences 58 (9) :707-708.

Relative performance of groundnut (Arachk hypogaea) varieties to sowing date

V.PRAVEEN RAO AND M. DEVENDER REDDY

Regional Agricultural Research Station, Andhra Pradesh Agricultural University,

Jagital505 327 Received: April 1992

A field experiment was conducted.during the summer 1990 at Kukumseri, to study the comparative performahce of 4 genotypes of French bean (Phaseolus vulgaris L.) ('Katrain l', 'Kim l', 'B 4' and 'B 6') at different levels of nitrogen (0, 30,60 and 90 kgha). The experiment was laid out in split- plot design with 3 replications, keeping

genotypes in main plots and N levels in sub- plots. The soil was sandy loam, rich in organic matter (2.4%) with near neutral reaction (pH 6.8). The available N, P and K in the soil were 600, 10 and 160 kgha respectively. The crop was sown in lines 30 cm apart on 21 May and given a basal dressing of 100 kg P,O, and 50 kg qOha and the whole nitgrogen as per treatment.

All the genotypes differed significantly for grain yield and yield attributes (Table 1). 'B 6' showed significantly higher plant height than the other genotypes in our study.

Brancheslplant, podslplant and grain yield

(19.90 qha) were also maximum in the genotype. Nitrogen @ 60 and 90 kgha being at par resulted in significantly higher grain yield than that at 0 and 30 kgha. Nitrogen application exerted significant beneficial effect on yield attributes which in

Table 1. Effect of N and variety on yield and yield attributes of Franch bean

Treatment Plant Branches1 Pods1 Grain Straw height plant plant yield yield (cm) (qha) (qha)

.-... Variety

.,. 'Katrain 1' 35.1 14.8 10.6 14.5 18.8

'Him 1' 28.9 15.3 12.4 17.8 18.2 'B 4' 29.5 18.3 14.1 18.2 18.5 'B 6' 38.7 19.1 15.1 19.9 20.9 CD (P = 0.05) 3.2 4.2 3.9 1.9 NS

Present address: 'b2Department of Agronomy, HPKV, Palarnpur 176 062 NEGI AND SHEKHAR [Vol. 38, No. 2

turn increased the grain and straw yields. The results confirm the findings of Masood Ali and Tripatbi (1988) aid Srinivas and Naik (1988).

The relationship of grain yield and N application was quadratic and the following equations were computed: 'Katruin 1'

Y = 2 823.9 + 73.18 X -0.56444 X 'Him 1' Y = 3 513.0 + 85.365 X-0.63083 X

'B 4' ,

Y = 3 728.1 + 78.1367 X-0.56389 X 'B 6' Y = 3 978.4+ 90.6967 X-0.66389 X

Indian J. Agron. 38 (2) :322-323 (June 1993)

The economic optimum doses of N were 64.20, 67,15, 68.72 and 67.83 kgha for 'Katrain 1'' 'Him 1'' 'B 4'. and 'B 6' respectively.

Ali Masood and Tripathi, A. 1988. Dry matter accumulation and yield of winter french bean

(P. vulagarir) as influenced by genotypes, nitrogen levels and plant population. Indian Journal of Aricutlural Sciences 58 (4) : 263-267.

Srinivas. K. and Naik, K. 1988. Response of vegetable French bean (Pbeolus vulgaris) to N and P-fertilization. Indiati Joumal of Agricultural Sciences 58 (9) :707-708.

Relative performance of groundnut (Arachk hypogaea) varieties to sowing date

V.PRAVEEN RAO AND M. DEVENDER REDDY

Regional Agricultural Research Station, Andhra Pradesh Agricultural University,

Jagital505 327 Received: February 1992 Received: February 1992 .. ,

Among oilseeds, groundnut (Arachis hypogaea L.) is getting popular with the farmers because it provides greater and assured returns compared to most of the competing crops and also facilitates the sowing of rainy-season crop at normal time. This necessitated to find out the optimum time of sowing of summer groundnut to boost up its productivity.

The field experiment was conducted during the summer season of 1990 at Jagital. 'ICGS 11' and 'K 3' varieties were used under varying dates of sowing (10 January 20 January, 30 January, and 9 February) in a factorial randomized block design with 3 replications. The soil of the experimental site was sandy loam, poor in nitrogen, medium in phosphorus and potassium and neutral in reaction. The groundnut varieties were sown as per the treatment at 30 cm x 10 cm spacing. The crop received recommended fertilizer (30 kg N, 60kg P20, and 30 kg K,Oha). N @ 20 kgha and entire P20, were given basal and the remaining N