ABSTRACT
Brinjal is an important vegetable crop grown in India, Asia, and many parts of the world. The primary objective of brinjal breeding is to develop varieties that are resistant to pests and diseases, have higher yields, and better fruit quality. In this study, 10 brinjal varieties were crossed to obtain F1’s hybrids. The F1’s were evaluated for yield and yield-related characters. The results showed a wide range of variation for all characters. The estimates of heritability in F1 varied from 45.43% (number of primary branches per plant) to 97.69% (Average Fruit weight). The genetic advance percent over mean for F1 varied from 6.25 % (Number of primary branches per plant) to 62.16 % (Average Fruit weight). Seven characters showed high performance viz. Average Fruit weight (62.16%) , Number of Fruit per Plant (50.37%), Fruit yield per plant (49.37), Fruit circumference (35.18), Plant height (32.77), Number of Secondary branches per plant (29.14%) and Fruit length (27.11%); three medium performance viz. Days of 50% Flowering after transplanting (18.09), Days of First Fruit harvest after transplanting (15.35) and Fruit T.S.S (11.92%); one low performance i.e., Number of primary Branches per plant (6.25%). The PCV was higher than GCV indicate the role of environment in performance of characters while value of both have narrow difference indicate the mainly genetic factors is responsible for the performance of the characters of genotypes.High heritability coupled with high genetic advance was found for yield and yield attributing characters, which indicates that selection for these traits will be effective.
ABSTRACT
An experiment was carried out at College of Horticulture, Rajendranagar, Hyderabad summer, 2023 to study the variability, heritability and genetic advance for different morphological and agronomic traits. Analysis of variance revealed significant variability among the genotypes of okra for all character’s studied. Genetic variability revealed that a lot of variation among the genotypes. In general, the lowest difference in phenotypic and genotypic coefficients of variation indicated lowest environmental influence in controlling the expression of the traits. Based on genetic variability studies, high PCV and GCV and high heritability coupled with high genetic advance as per cent of mean were recorded for number of branches per plant at 60 DAS, number of branches per plant at 90 DAS, fruit yield per plant and yield per hectare indicating the existence of wider genetic variability for these traits in the germplasm under study.
ABSTRACT
An experiment was carried out at Faculty of Agriculture Department of Agricultural Meteorology Farm, Centre for Advanced Agricultural Meteorology, College of Agriculture, Pune during Kharif seasons of 2014 and 2015.The experiment was laid out in split plot design with three replications. The treatment comprised of three brinjal hybrids viz.,V1:Phule Arjun, V2: Krishna, V3: Panchganaga as main plot and four planting windows viz., P1: 31st MW (30 July-5 August), P2: 32ndMW (6-12August), P3:33rdMW (13-19 August) and P4: 34thMW (20-26 August) as sub plot treatments. In micrometeorological studies of the higher radiation absorptions and lower reflection was absorbed under hy. Phule Arjun as compared to hy. Krishana and hy Panchganga. The maximum Incident PAR (1270 u mol m-2s-1) Intercepted PAR (86.47u mol m-2s-1),Absorbed PAR (1094.4u mol m-2s-1) and Radiation use efficiency (2.43gmMJ m-2) was observed in hy .Phule Arjun. Cumulative GDD, HTU and PTU at the end of each growth stages showed that numerically higher requirement was observed in hy. Phule Arjun over hy. Krishana and hy. Panchganaga hybrids during both year 2014 and 2015 experimentation period. Whereas, the lowest canopy temperature was found in hy. Phule Arjun (29.0 0C) than rest of the brinjal hybrids. Canopy reflected PAR and transmitted PAR was higher in (191.54 and 188.62 µ mol m-2s-1) Panchganaga hybrids among the brinjal hybrids.
ABSTRACT
Os atributos do solo são dinâmicos e estão sujeitos a alterações de acordo com o uso e manejo adotado, sendo sua determinação importante para melhor utilização agrícola dos solos. Desta forma, objetivou-se avaliar o comportamento de alguns atributos físicos (composição granulométrica, argila dispersa em água e grau de floculação) de um Latossolo Vermelho-Amarelo sobre diferentes usos, a saber: cultivado com duas espécies de leguminosas e sob vegetação espontânea, em área anteriormente cultivada com horticultura, por aproximadamente 10 anos, sob intensa mecanização agrícola e aplicação de corretivos e fertilizantes. O experimento foi instalado no delineamento em blocos casualizados, sendo conduzido em esquema fatorial 2 x 3, sendo duas profundidades (0 a 20 e 20 a 40 cm) e três coberturas vegetais (duas leguminosas e uma vegetação espontânea) com 4 repetições cada. Os dados das avaliações foram submetidos à análise de variância e as médias comparadas pelo teste de Tukey a 5% de probabilidade. Observou-se que a agitação lenta proporciona uma melhor dispersão física quando comparada com a agitação rápida, demonstrando maior acurácia e precisão. Os valores de argila dispersa em água são maiores na profundidade de 20-40 cm. O solo cultivado com mucuna preta, na profundidade de 20-40 cm, apresenta um maior valor de argila dispersa em água em relação às demais coberturas vegetais e o solo sob vegetação espontânea maior grau de floculação nesta profundidade.
Soil attributes are dynamic and are subject to change according to the use and management adopted, is important for determining its best use agricultural soil. Thus, it was aimed to evaluate some physical attributes (particle size, water dispersible clay and flocculation) of an Oxisol on different uses, namely: cultivated with two species of legumes and natural vegetation, in an area previously cultivated with vegetables, for about 10 years, under intense agricultural mechanization and application of lime and fertilizer. The experiment was conducted in a randomized block design, being conducted in factorial 2 x 3, two depths (0 to 20 and 20 to 40 cm) and three cover crops, with four replications. Data were submitted to analysis of variance and averages compared by Tukey test at 5% probability. It was Avaliação de alguns atributos... SANTOS, L. N. S. et al. Biosci. J., Uberlândia, v. 26, n. 6, p. 940-947, Nov./Dec. 2010 946 observed that the slow agitation provides better physical dispersion when compared with the fast agitation, showing greater accuracy and precision. The values of clay dispersed in water are larger at a depth of 20-40 cm. The soil under Mucuna pruriens L., in depth of 20-40 cm, has a higher value of water dispersible clay in water compared with to other cover crops and the soil under natural vegetation greater degree of flocculation this depth