The current study was carried out to investigate the effect of different irrigation methods with water level based on IW/CPE ratio on growth and seed yield of fenugreek during the rabi season of 2 consecutive years (2016-17) at ICAR-National Research Centre on Seed Spices (NRCSS), Tabiji, Ajmer, Rajasthan. This investigation consisted of four irrigation regimes (IW/CPE ratio viz 0.4, 0.6, 0.8 and 1.0) and three irrigation methods ie. (Micro sprinkler, Drip irrigation and Surface irrigation). The experiment was laid out in factorial randomized block design with four replications. Among the irrigation methods tested, drip and micro sprinkler system gave maximum irrigation efficiency and minimum yield loss than surface irrigation. Results showed that irrigation regimes 0.6 IW/CPE ratio with drip irrigation gave superior seed yields (2049.80 kg ha-1) of fenugreek compared to other treatments. Total water applied was 321.96 mm by different irrigation methods. Water productivity and water use efficiency was found highest in 0.4 IW/CPE ratio followed by 0.6 IW/CPE ratio from the finding of the investigation. It was inferred that farmers were over irrigating their farms without equivalent returns. The water saved through use of optimized irrigation method and level can be used more profitably to irrigate supplemental lands, thus achieving a more efficient and rational use of land and water resources.
Labeo dero specimens, from four different rivers (n= 60), were analysed for allozyme variations. The eighteen enzyme systems screened provided twenty five scorable loci. Seven loci were polymorphic. The significant genotype heterogeneity was observed, between the sample sets. The identified loci exhibited significant potential, to determine population structure of L. dero, across its natural range of distribution.
Altogether, 30 germplasm of Yam bean including two released varieties viz., Rajendra Misrikand-1(RM-1) and Rajendra Misrikand-2 (RM-2) were analyzed for genetic divergence among twelve studied characters. Analysis of variance
revealed highly significant differences among the genotypes for all the twelve characters under study. The (PCV) was greater than genotypic coefficient of variance (GCV) for all the characters and high magnitude of PCV and GCV were observed for
traits like tuber weight followed by tuber yield indicating that these traits could be used for tuber yield improvement but wide difference between GCV and PCV were recorded for most of the traits except for the tuber yield and tuber weight. All the
thirty genotypes were grouped into 6 clusters using D2 statistics. Highest inter cluster distance was observed between cluster I and III (107.53) followed by cluster III and VI (97.61) and cluster I and II (78.54) on the basis of their genetic
distances. Tuber yield followed by tuber weight and seed yield were having maximum contribution towards total divergence.
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