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Sharma T.,Suresh Gyan Vihar University | Kumar A.,P.A. College | Dwivedi S.C.,Suresh Gyan Vihar University | Vyas R.P.,CSAUAT
Plant Archives

Assessment of genetic diversity is fundamental for maize breeding and particularly useful as a general guide in the choice of parents for breeding hybrids. The experiments were conducted in 2009-10 and 2010-11 at experimental field of Chandra Shekhar Azad University of Agriculture & Technology, Kanpur (U.P.), India in randomized complete block design (RCBD) with two replications under all suitable agronomic practices. The genetic dissimilarity coefficients for the 20 maize inbred lines based on quantitative traits ranged from 0.01 to 0.21. The highest dissimilarity occurred between two maize lines, TSK-41 vs TSK-9 and TSK-41 vs CIM-130 with a coefficient value of 21% and the lowest dissimilarity occurred between TSK-7 vs TSK-33, TSK-41 vs CIM-7242-149 and TSK-33 vs CIM-7242-67 with a coefficient value of 1.0%. Cluster analysis classified the 20 maize inbred lines into 5 distinct clusters namely A, B, C, D and E. Based on the present results, it was recommended to make crosses among maize inbred lines in Cluster A and Cluster E in breeding programs. These assessment could support breeders to choose and identify inbreed lines with desirable traits for inclusion in maize breeding programs. Source

Sareen S.,Directorate of Wheat Research | Munjal R.,CCSHAU | Singh N.,CSAUAT | Singh B.,NDU A&T Kumarganj | And 5 more authors.
Cereal Research Communications

Terminal heat, which is referred as increase in temperature during grain filling, is one of the important stress factors for wheat production. Current estimates indicate that wheat crop grown on around 13.5mha in India is affected by heat stress. In order to meet the challenges of high temperature ahead of global warming, concerted efforts are needed to evaluate germplasm for heat tolerance and identify and develop genotypes suitable for such stressed environments. The advanced wheat genotypes developed for stress and normal environments by different research centers were evaluated across 7 locations representing varied agroclimatic zones during 2007-08 and 2008-09 to study their adaptability for heat stress and non-stress environments. The additive main effects and multiplicative interaction analysis for G × E interactions revealed differences amongst locations to phenology and grain yield. Genotype RAJ 4083 developed for cultivation under late sown conditions in peninsular zone was also found adaptable to timely sown conditions. Similarly, HD 2733 a cultivar of NEPZ timely sown conditions and PBW 574 an advanced breeding line of NWPZ late sown conditions was found adapted to Peninsular zone. The cultivar RAJ 3765 showed specific adaptability to Pantnagar in NWPZ. Genotype NW 3069 developed for NEPZ timely sown conditions have shown adaptability to number of locations; timely sown conditions at Karnal and Hisar in NWPZ and Niphad in PZ. Likewise, WH 1022 developed for NEPZ late sown conditions exhibited specific adaptability to all timely sown locations in NWPZ. Source

Sharma T.,Suresh Gyan Vihar University | Kumar A.,P.A. College | Dwivedi S.C.,Suresh Gyan Vihar University | Vyas R.P.,CSAUAT
Plant Archives

Healthy seeds of 20 maize inbred lines were sown at experimental field of C.S.A.U.A.T., Kanpur in randomized complete block design (RCBD) with two replications under all standard agronomical practices. The objective of this study was to determine correlation between grain yield and other important agronomic traits. The genetic factor like range, mean, standard error, variance, standard deviation and correlation coefficient were estimated among 7 agronomic traits. Among 20 inbred lines of maize, plant height, ear height, leaf width, leaf length, number of leaves per plant, number of kernels per row and grain yield ranged from 133.2-180.5 cm, 73.8-105.1 cm, 6.5-10.8 cm, 60.8-90.6 cm, 9.35-14.15, 20.2-32.5 and 1.9-9.62 Mg/ha, respectively. Plant height, ear height, leaf length, leaves per plant and kernels per row correlated highly significant positive with grain yield. Hence, each morphological trait can be considered for the enhancement of grain yield in maize breeding programs. Source

Kumar P.,SHIATS | Singh R.,SHIATS | Nagaraj V.P.,SHIATS | Kumar A.,SHIATS | And 2 more authors.
Plant Archives

A field experiment was conducted under low fertility and limited irrigated conditions during rabi 2011 at Wheat Breeding Farm, Central Research Farm, Shiats-Allahabad (U.P.), India. The experiment consisted of 9 varieties of wheat, which were laid out three replicated in randomized block design to study response of wheat under low fertility and limited irrigation condition having 9 varieties tired, 6 varieties i.e. [AAI-W1, (16)], [AAI-W3-(23)], [AAI-W4-(28)], [AAI-W5-(347)], [AAI-W6-(344)] and [AAI-W7(15)] have been recently put in state level trials, along with 3 standard check varieties i.e. K-9533, HD-2733 PBW- 502. The study showed that AAI-W4-(28) Variety gave highest grain yield (5.06. tha-1), harvest index (46.33), highest PBW-502 variety, highest net income (Rs. 56804.5) and highest Benefit: cost ratio (2.87) K-.9533(C) among the other varieties tried. © 2014, Plant Archives. All rights reserved. Source

Rai S.,Banaras Hindu University | Maurya K.K.,CSAUAT | Sitaram K.,CSAUAT | Pramod M.,CSAUAT | And 2 more authors.
Plant Archives

The study was carried out to determine the response of Indian mustard (Brassica juncea L.) as influenced by different doses and sources of sulphur. Results showed that the most of the yield attributes were significantly influenced by different doses of sulphur. These all attributes were estimated in whole experiment from sowing to maturity and to at harvest. The yield and yield contributing characters were increased with the increasing levels of sulphur fertilizer up to 45kg sulphur per hectare. All yield components, such as number of siliqua per plant, seeds per siliqua, 1000-seed weight and seed yield per plant were found maximum from the treatment with 45kg sulphur per hectare. Similarly increase sulphur dose up to 45kg per hectare significantly improved seed and Stover yield of mustard. Sulphur application enhanced seed oil content and oil yield up to 45kg sulphur per hectare. Application of sulphur brought about significant increase in sulphur contents and their uptake by seed, Stover as well as biological yield. © 2014, Plant Archives. All rights reserved. Source

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