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Experiment was laid out in RBD design with seven treatments comprised of pruning of affected twigs (July & October) and miticides (chlorfenapyr & spiromesifen) sprayed twice in July and once in October months to evaluate the efficacy of various integrated approaches. Results revealed that initial mite infestation ranged from 31.9 to 45.9%. During 2017-18, no mite infestation was recorded from October to fruiting stage in pruning and removal of affected twigs followed by two spraying of chlorfenapyr 10 EC (0.03%) or spiromesifen 22.9 SC (0.034%) at 15 days interval during July and again pruning in October with one spraying of chlorfenapyr or spiromesifen against 89.0% in control at fruiting stage, followed by no pruning in October along with spraying of chlorfenapyr with 7.6% mite infestation at flowering stage. Similar trend in 2018-19 confirmed that pruning in July and October followed spraying of miticides (chlorfenapyr or spiromesifen) twice in July and once in October were highly effective against litchi mite. [ABSTRACT FROM AUTHOR]

Jackfruit (Artocarpus heterophyllus Lam.) is a nutritious crop from the Moraceae family. The current study was undertaken to evaluate the phenotypic diversity of fruit characteristics using a set of 27 standardized fruit descriptors to describe 28 jackfruit genotypes. These data were used to identify the superior jackfruit genotype that could be used for commercial cultivation. The data revealed a wide range of differences among the genotypes for all the traits studied. Cluster analysis classified the genotypes into four major groups that confirmed the wide diversity among them. Principal component analysis (PCA) also revealed that 80.22% of the variability among the jackfruit genotypes was explained by the first five principal components (PCs). Based on the overall results, the Indian Council of Agricultural Research, Research Complex for Eastern Region (ICAR-RCER) JS 6/3 and 10/3 genotypes were found to be the most promising for table purposes (medium fruit size, pulp percentage >50 and total soluble solid (TSS) >20°Brix), whereas the ICAR-RCER JS 7/7 genotype with large fruit size, pulp percentage >50 and TSS >20°Brix was found to be suitable for processing. The coefficient of variation was the least for traits such as TSS (12.56%) and average seed length (13.56%). Hence, priority may also be given to the TSS and seed size when exploring promising genotypes and operating a selection procedure for crop improvement in jackfruit. The information generated under the study forms a potential baseline for fruit breeders to use in selecting genotypes with superior fruit qualities for jackfruit crop improvement programmes in the future. [ABSTRACT FROM AUTHOR]

The experiment was conducted on eight year-old litchi (Litchi chinensis Sonn.) cv. Shahi at ICAR-NRC on Litchi, Muzaffrapur, Bihar during 2017-18. The results showed that trees started opening of flowers (male, hermaphrodite functionally female and hermaphrodite functionally male) on 4, 11 and 16 March 2017, and 11, 17 and 24 March 2018 respectively, whereas, in 15 year-old trees, anthesis of male, hermaphrodite functionally female and hermaphrodite functionally male was earlier on 1, 7 and 13 March 2017, and 7, 14 and 20 March 2018, respectively. Similarly, eight-year-old plant of Longia started opening of flowers (male, hermaphrodite functionally female and hermaphrodite functionally male) on 19, 27 and 30 March 2017, and 22, 30 March 2018 and 1 April 2018, respectively and 15 year-old trees started opening of flowers on 14, 21 and 25 March 2017 and 18, 25 and 29 March 2018, respectively. The eight year old Kasba plants located near road side were recorded with anthesis of flowers (male, female and hermaphrodite male flowers) on 12, 17 and 23 March 2017, and 16, 20 and 24 March 2018, respectively, whereas, 15-year old Kasba plant located at the centre of the field started opening of flowers on 15, 19 and 22 March 2017 and 20, 24 and 27 March 2018, respectively. [ABSTRACT FROM AUTHOR]

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