Barley Genotypes Clipping (forage) and Grain Yield Production under Rainfed Conditions of Highland Balochistan, Pakistan
DOI:
https://doi.org/10.31580/pjmls.v7i1.2992Keywords:
Barley clipping, Barley production , Forage yield, GrazingAbstract
In the highlands of Balochistan farmers face acute shortages of feed for livestock during the winter season (November-February) and are forced to graze their wheat or barley crop to save livestock from mortality and maintain health for the breeding season. In Balochistan inter and intra-seasonal environmental variability is very high with low and erratic rainfall and drought periods during the life cycle of the crop, barley tends to escape the stress and adapt to environmental stresses.
An experimental trial was conducted in Randomized Complete Block Design (RCBD) in triplicate during the cropping season to evaluate different barley genotypes for their dual purpose use as forage and grain yield under rain-fed conditions of highland Balochistan.
The data showed the highest fresh biomass for genotype AZRC-B-9 with a production of 7369 kg ha-1. Un-clipped genotypes headed earlier compared to clipped genotypes with a non-significant difference of 2-4 days. AZRC-B-11 headed earlier after clipping with 140 days to head. The same genotype also reached earlier physiological maturity and took 160 days to mature (50%). Plant height reduction was observed after clipping in most of the genotypes except genotype AZRC-B-1 which sustained its height (49 cm) compared to the unclipped treatment (48 cm). Entry 1 also produced the highest number of tillers with 505 tillers per m2 in unclipped and 487 tillers in clipped treatment. Genotype AZRC-B-1 produced higher grain weight. The highest grain yield was also recorded for genotype 1 with a grain yield of 1846 kg ha-1 and total dry matter of 7866 kg ha-1. Barley local landrace (check genotype-12) produced more spikelets and also maximum spike length (7.3 cm) with 38 spikelets.
Five genotypes showed encouraging results (AZRC-B-1, 2, 3, 6 and check variety Balochistan Local-B) that produced more yield under clipped treatment compared to un-clipped treatment while the remaining genotypes reported a decrease in grain yield after clipping.
The results showed that genotype AZRC-B-1 can be a better substitute for the barley varieties grown in the rain more income and help farmers in improving their livestock production. Fed/irrigated areas of Balochistan for producing results in better grain yield which can higher forage during winter and finally generate
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